Dtc U1002 Lost Communication With Gateway Module (Power Management1)

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

CHECK CAN BUS WIRE (CAN MAIN WIRE FOR DISCONNECTION, BUS LINE FOR SHORT CIRCUIT)

CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 3 JUNCTION CONNECTOR - POWER MANAGEMENT CONTROL ECU)

CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 3 JUNCTION CONNECTOR - NO. 4 JUNCTION CONNECTOR)

CONNECT CONNECTOR

CHECK FOR OPEN IN CAN BUS MAIN WIRE (POWER MANAGEMENT CONTROL ECU - NO. 3 JUNCTION CONNECTOR)

CONNECT CONNECTOR

CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 6 JUNCTION CONNECTOR - NO. 4 JUNCTION CONNECTOR)

CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 6 JUNCTION CONNECTOR - NO. 3 JUNCTION CONNECTOR)

CONNECT CONNECTOR

CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 2 JUNCTION CONNECTOR - NO. 4 JUNCTION CONNECTOR)

CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 2 JUNCTION CONNECTOR - NO. 6 JUNCTION CONNECTOR)

CONNECT CONNECTOR

CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 2 JUNCTION CONNECTOR - NO. 4 JUNCTION CONNECTOR)

CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 2 JUNCTION CONNECTOR - NO. 3 JUNCTION CONNECTOR)

CONNECT CONNECTOR

CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 1 JUNCTION CONNECTOR - NO. 4 JUNCTION CONNECTOR)

CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 1 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)

CONNECT CONNECTOR

CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 4 JUNCTION CONNECTOR - NO. 1 JUNCTION CONNECTOR)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 JUNCTION CONNECTOR SIDE)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 JUNCTION CONNECTOR - HEADLIGHT SWIVEL ECU ASSEMBLY)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 JUNCTION CONNECTOR - NO. 4 JUNCTION CONNECTOR)

CONNECT CONNECTOR

CHECK FOR SHORT IN CAN BUS WIRES (HEADLIGHT SWIVEL ECU ASSEMBLY)

CONNECT CONNECTOR

CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR)

CONNECT CONNECTOR

CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 JUNCTION CONNECTOR - NO. 1 JUNCTION CONNECTOR)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 JUNCTION CONNECTOR SIDE)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 JUNCTION CONNECTOR - CLEARANCE WARNING ECU ASSEMBLY)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 JUNCTION CONNECTOR - PARKING ASSIST ECU)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 JUNCTION CONNECTOR - STABILIZER CONTROL ECU)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 JUNCTION CONNECTOR - SEAT BELT CONTROL ECU)

CONNECT CONNECTOR

CHECK FOR SHORT IN CAN BUS WIRES (CLEARANCE WARNING ECU ASSEMBLY)

CONNECT CONNECTOR

CHECK FOR SHORT IN CAN BUS WIRES (PARKING ASSIST ECU)

CONNECT CONNECTOR

CHECK FOR SHORT IN CAN BUS WIRES (STABILIZER CONTROL ECU)

CONNECT CONNECTOR

CHECK FOR SHORT IN CAN BUS WIRES (SEAT BELT CONTROL ECU)

CONNECT CONNECTOR

CHECK FOR SHORT IN CAN BUS WIRES (NO. 6 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 6 JUNCTION CONNECTOR SIDE)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 6 JUNCTION CONNECTOR - BLIND SPOT MONITOR SENSOR LH)

CONNECT CONNECTOR

CHECK FOR SHORT IN CAN BUS WIRES (BLIND SPOT MONITOR SENSOR LH)

CONNECT CONNECTOR

CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - NO. 6 JUNCTION CONNECTOR)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - SUSPENSION CONTROL ECU)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - DRIVING SUPPORT ECU ASSEMBLY)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - CLEARANCE WARNING ECU ASSEMBLY)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - POWER MANAGEMENT CONTROL ECU)

CONNECT CONNECTOR

CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - SUSPENSION CONTROL ECU)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - DRIVING SUPPORT ECU ASSEMBLY)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - CLEARANCE WARNING ECU ASSEMBLY)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY)

CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - POWER MANAGEMENT CONTROL ECU)

CONNECT CONNECTOR

CHECK FOR SHORT IN CAN BUS WIRES (SUSPENSION CONTROL ECU)

CONNECT CONNECTOR

CHECK FOR SHORT IN CAN BUS WIRES (DRIVING SUPPORT ECU ASSEMBLY)

CONNECT CONNECTOR

CHECK FOR SHORT IN CAN BUS WIRES (CLEARANCE WARNING ECU ASSEMBLY)

CONNECT CONNECTOR

CHECK FOR SHORT IN CAN BUS WIRES (AIR CONDITIONING AMPLIFIER ASSEMBLY)

CONNECT CONNECTOR

CHECK FOR SHORT IN CAN BUS WIRES (POWER MANAGEMENT CONTROL ECU)

CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - BATTERY AND BODY GROUND)

DTC U1002 Lost Communication with Gateway Module (Power Management1)

DESCRIPTION

1. The power management control ECU stores this DTC when no signals can be received from the ECUs that have been memorized as those connected to the V2 bus.
   
2. When the power management control ECU receives a response signal from the ECUs connected to the V2 bus, the power management control ECU recognizes and memorizes that the ECU is connected to the V2 bus. Based on this memorized data, the power management control ECU monitors for malfunctions in the ECUs connected to the V2 bus when communicating with those ECUs. If the power management control ECU cannot receive response signals from the ECUs that have been memorized as those connected to the V2 bus, the power management control ECU determines that a malfunction exists.
   
3. If 2 or more DTCs are output during the DTC check, one side of the CAN branch wire may be open (one side of the CANH [CAN branch wire]/CANL [CAN branch wire] of the ECU and/or sensor is open).
   

DTC Code	DTC Detection Condition	Trouble Area
U1002	Lost communication with the gateway module (Power Management1).	V2 bus circuit Parking assist ECU CAN branch wire or connector*1 Clearance warning ECU assembly CAN branch wire or connector*2 Driving support ECU assembly CAN branch wire or connector*3 Stabilizer control ECU CAN branch wire or connector*4 Seat belt control ECU CAN branch wire or connector*3 Blind spot monitor sensor LH CAN branch wire or connector*5 Suspension control ECU CAN branch wire or connector*6 Headlight swivel ECU assembly CAN branch wire or connector*7 Power management control ECU CAN main wire or connector Parking assist ECU*1 Clearance warning ECU assembly*2 Driving support ECU assembly*3 Stabilizer control ECU*4 Seat belt control ECU*3 Blind spot monitor sensor LH*5 Suspension control ECU*6 Headlight swivel ECU assembly*7 Air conditioning amplifier assembly*8 Power management control ECU No. 1 junction connector No. 2 junction connector No. 3 junction connector No. 4 junction connector No. 6 junction connector*5

1. *1: w/ Side Monitor System
   
2. *2: w/ TOYOTA Parking Assist-sensor System
   
3. *3: w/ Pre-crash Safety System
   
4. *4: w/ Kinetic Dynamic Suspension System
   
5. *5: w/ Blind Spot Monitor System
   
6. *6: w/ Air Suspension System
   
7. *7: for LED Headlight
   
8. *8: for 1GR-FE, 1GD-FTV
   

WIRING DIAGRAM

INSPECTION PROCEDURE

HINT:

Operating the engine switch, any switches or any doors triggers related ECU and sensor communication with the CAN, which causes resistance variation.

1.DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

1. Disconnect the cable from the negative (-) battery terminal before measuring the resistances of the CAN main wire and the CAN branch wire.
   

   CAUTION:

   Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the airbag system.

   NOTICE:

   1. After turning the engine switch off, waiting time may be required before disconnecting the cable from the battery terminal. Therefore, make sure to read the disconnecting the cable from the battery terminal notice before proceeding with work (LandCruiser RM000003YMD00TX.html).
      
   2. When disconnecting the cable, some systems need to be initialized after the cable is reconnected (LandCruiser RM000003YMF011X.html).
      

NEXT

2.CHECK CAN BUS WIRE (CAN MAIN WIRE FOR DISCONNECTION, BUS LINE FOR SHORT CIRCUIT)

1. Measure the resistance according to the value(s) in the table below.
   
   

   Standard Resistance:

   for 1KD-FTV

   Tester Connection	Switch Condition	Specified Condition	Resistance: Malfunction
   G51-26 (CA2H) - G51-25 (CA2L)	Engine switch off	54 to 69 Ω	Below 53 Ω: Short in line
   G51-26 (CA2H) - G51-25 (CA2L)	Engine switch off	54 to 69 Ω	Higher than 70 Ω: Open in CAN main bus line
   G51-26 (CA2H) - G51-1 (AM22)	Engine switch off	6 kΩ or higher	Below 6 kΩ: +B short
   G51-25 (CA2L) - G51-1 (AM22)	Engine switch off	6 kΩ or higher	Below 6 kΩ: +B short
   G51-26 (CA2H) - G51-6 (GND)	Engine switch off	200 Ω or higher	Below 200 Ω: Ground short
   G51-25 (CA2L) - G51-6 (GND)	Engine switch off	200 Ω or higher	Below 200 Ω: Ground short

   for 1GR-FE, 1GD-FTV

   Tester Connection	Switch Condition	Specified Condition	Resistance: Malfunction
   G51-12 (CA3P) - G51-11 (CA3N)	Engine switch off	54 to 69 Ω	Below 53 Ω: Short in line
   G51-12 (CA3P) - G51-11 (CA3N)	Engine switch off	54 to 69 Ω	Higher than 70 Ω: Open in CAN main bus line
   G51-12 (CA3P) - G51-1 (AM22)	Engine switch off	6 kΩ or higher	Below 6 kΩ: +B short
   G51-11 (CA3N) - G51-1 (AM22)	Engine switch off	6 kΩ or higher	Below 6 kΩ: +B short
   G51-12 (CA3P) - G51-6 (GND)	Engine switch off	200 Ω or higher	Below 200 Ω: Ground short
   G51-11 (CA3N) - G51-6 (GND)	Engine switch off	200 Ω or higher	Below 200 Ω: Ground short

   Text in Illustration

   *A	for 1KD-FTV
   *B	for 1GR-FE, 1GD-FTV
   *a	Component with harness connector (Power Management Control ECU)

   Result

   Result	Proceed to
   NG Open in CAN main bus line	A
   NG Short in line +B short Ground short	B
   OK	C

B	Go to step 21
C	Go to step 73

A

3.CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 3 JUNCTION CONNECTOR - POWER MANAGEMENT CONTROL ECU)

1. Disconnect the G98 No. 3 junction connector.
   

2. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G98-2 (CANH) - G98-13 (CANL)	Engine switch off	108 to 132 Ω

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 3 Junction Connector)

NG	Go to step 5

OK

4.CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 3 JUNCTION CONNECTOR - NO. 4 JUNCTION CONNECTOR)

1. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G98-1 (CANH) - G98-12 (CANL)	Engine switch off	108 to 132 Ω

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 3 Junction Connector)

   Result

   Result	Proceed to
   OK	A
   NG (w/ Blind Spot Monitor System)	B
   NG (w/o Blind Spot Monitor System)	C

B	Go to step 7
C	Go to step 13

A
REPLACE NO. 3 JUNCTION CONNECTOR

5.CONNECT CONNECTOR

1. Reconnect the G98 No. 3 junction connector.
   

NEXT

6.CHECK FOR OPEN IN CAN BUS MAIN WIRE (POWER MANAGEMENT CONTROL ECU - NO. 3 JUNCTION CONNECTOR)

1. Disconnect the G51 power management control ECU connector.
   

2. Measure the resistance according to the value(s) in the table below.
   
   

   Standard Resistance:

   for 1KD-FTV

   Tester Connection	Switch Condition	Specified Condition
   G51-26 (CA2H) - G51-25 (CA2L)	Engine switch off	108 to 132 Ω

   for 1GR-FE, 1GD-FTV

   Tester Connection	Switch Condition	Specified Condition
   G51-12 (CA3P) - G51-25 (CA3N)	Engine switch off	108 to 132 Ω

   Text in Illustration

   *A	for 1KD-FTV
   *B	for 1GR-FE, 1GD-FTV
   *a	Rear view of wire harness connector (to Power Management Control ECU)

NG	REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO POWER MANAGEMENT CONTROL ECU (POWER MANAGEMENT CONTROL ECU - NO. 3 JUNCTION CONNECTOR)

OK
REPLACE POWER MANAGEMENT CONTROL ECU (LandCruiser RM0000039R5026X.html)

7.CONNECT CONNECTOR

1. Reconnect the G98 No. 3 junction connector.
   

NEXT

8.CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 6 JUNCTION CONNECTOR - NO. 4 JUNCTION CONNECTOR)

1. Disconnect the R47 No. 6 junction connector.
   

2. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   R47-1 (CANH) - R47-12 (CANL)	Engine switch off	108 to 132 Ω

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 6 Junction Connector)

NG	Go to step 10

OK

9.CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 6 JUNCTION CONNECTOR - NO. 3 JUNCTION CONNECTOR)

1. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   R47-3 (CANH) - R47-14 (CANL)	Engine switch off	108 to 132 Ω

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 6 Junction Connector)

NG	REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 6 JUNCTION CONNECTOR - NO. 3 JUNCTION CONNECTOR)

OK
REPLACE NO. 6 JUNCTION CONNECTOR

10.CONNECT CONNECTOR

1. Reconnect the R47 No. 6 junction connector.
   

NEXT

11.CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 2 JUNCTION CONNECTOR - NO. 4 JUNCTION CONNECTOR)

1. Disconnect the G95 No. 2 junction connector.
   

2. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G95-3 (CANH) - G95-14 (CANL)	Engine switch off	108 to 132 Ω

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 2 Junction Connector)

NG	Go to step 16

OK

12.CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 2 JUNCTION CONNECTOR - NO. 6 JUNCTION CONNECTOR)

1. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G95-1 (CANH) - G95-12 (CANL)	Engine switch off	108 to 132 Ω

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 2 Junction Connector)

NG	REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 2 JUNCTION CONNECTOR - NO. 6 JUNCTION CONNECTOR)

OK
REPLACE NO. 2 JUNCTION CONNECTOR

13.CONNECT CONNECTOR

1. Reconnect the G98 No. 3 junction connector.
   

NEXT

14.CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 2 JUNCTION CONNECTOR - NO. 4 JUNCTION CONNECTOR)

1. Disconnect the G95 No. 2 junction connector.
   

2. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G95-3 (CANH) - G95-14 (CANL)	Engine switch off	108 to 132 Ω

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 2 Junction Connector)

NG	Go to step 16

OK

15.CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 2 JUNCTION CONNECTOR - NO. 3 JUNCTION CONNECTOR)

1. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G95-1 (CANH) - G95-12 (CANL)	Engine switch off	108 to 132 Ω

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 2 Junction Connector)

NG	REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 2 JUNCTION CONNECTOR - NO. 3 JUNCTION CONNECTOR)

OK
REPLACE NO. 2 JUNCTION CONNECTOR

16.CONNECT CONNECTOR

1. Reconnect the G95 No. 2 junction connector.
   

NEXT

17.CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 1 JUNCTION CONNECTOR - NO. 4 JUNCTION CONNECTOR)

1. Disconnect the A72 No. 1 junction connector.
   

2. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   A72-1 (CANH) - A72-12 (CANL)	Engine switch off	108 to 132 Ω

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 1 Junction Connector)

NG	Go to step 19

OK

18.CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 1 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)

1. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   A72-2 (CANH) - A72-13 (CANL)	Engine switch off	108 to 132 Ω

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 1 Junction Connector)

NG	REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 1 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)

OK
REPLACE NO. 1 JUNCTION CONNECTOR

19.CONNECT CONNECTOR

1. Reconnect the A72 No. 1 junction connector.
   

NEXT

20.CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 4 JUNCTION CONNECTOR - NO. 1 JUNCTION CONNECTOR)

1. Disconnect the G102 No. 4 junction connector.
   

2. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G102-3 (CANH) - G102-2 (CANL)	Engine switch off	108 to 132 Ω

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 4 Junction Connector)

NG	REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 4 JUNCTION CONNECTOR - NO. 1 JUNCTION CONNECTOR)

OK
REPLACE NO. 4 JUNCTION CONNECTOR

21.CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 JUNCTION CONNECTOR SIDE)

1. Disconnect the A72 No. 1 junction connector.
   

2. Measure the resistance according to the value(s) in the table below.
   
   

   Standard Resistance:

   for 1KD-FTV

   Tester Connection	Switch Condition	Specified Condition
   G51-26 (CA2H) - G51-25 (CA2L)	Engine switch off	108 to 132 Ω
   G51-26 (CA2H) - G51-6 (GND)	Engine switch off	200 Ω or higher
   G51-25 (CA2L) - G51-6 (GND)	Engine switch off	200 Ω or higher
   G51-26 (CA2H) - G51-1 (AM22)	Engine switch off	6 kΩ or higher
   G51-25 (CA2L) - G51-1 (AM22)	Engine switch off	6 kΩ or higher

   for 1GR-FE, 1GD-FTV

   Tester Connection	Switch Condition	Specified Condition
   G51-12 (CA3P) - G51-11 (CA3N)	Engine switch off	108 to 132 Ω
   G51-12 (CA3P) - G51-6 (GND)	Engine switch off	200 Ω or higher
   G51-11 (CA3N) - G51-6 (GND)	Engine switch off	200 Ω or higher
   G51-12 (CA3P) - G51-1 (AM22)	Engine switch off	6 kΩ or higher
   G51-11 (CA3N) - G51-1 (AM22)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *A	for 1KD-FTV
   *B	for 1GR-FE, 1GD-FTV
   *a	Component with harness connector (Power Management Control ECU)

NG	Go to step 28

OK

22.CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 JUNCTION CONNECTOR - HEADLIGHT SWIVEL ECU ASSEMBLY)

NOTICE:

For vehicles with a halogen headlight, go to "Check for Short in CAN Bus Wires (No. 1 Junction Connector - No. 4 Junction Connector)".

1. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   A72-3 (CANH) - A72-14 (CANL)	Engine switch off	200 Ω or higher
   A72-3 (CANH) - G48-4 (CG)	Engine switch off	200 Ω or higher
   A72-14 (CANL) - G48-4 (CG)	Engine switch off	200 Ω or higher
   A72-3 (CANH) - G48-16 (BAT)	Engine switch off	6 kΩ or higher
   A72-14 (CANL) - G48-16 (BAT)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 1 Junction Connector)
   *b	Front view of DLC3

NG	Go to step 24

OK

23.CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 JUNCTION CONNECTOR - NO. 4 JUNCTION CONNECTOR)

1. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   A72-1 (CANH) - A72-12 (CANL)	Engine switch off	108 to 132 Ω
   A72-1 (CANH) - G48-4 (CG)	Engine switch off	200 Ω or higher
   A72-12 (CANL) - G48-4 (CG)	Engine switch off	200 Ω or higher
   A72-1 (CANH) - G48-16 (BAT)	Engine switch off	6 kΩ or higher
   A72-12 (CANL) - G48-16 (BAT)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 1 Junction Connector)
   *b	Front view of DLC3

NG	Go to step 26

OK
REPLACE NO. 1 JUNCTION CONNECTOR

24.CONNECT CONNECTOR

1. Reconnect the A72 No. 1 junction connector.
   

NEXT

25.CHECK FOR SHORT IN CAN BUS WIRES (HEADLIGHT SWIVEL ECU ASSEMBLY)

1. Disconnect the A58 headlight swivel ECU assembly connector.
   

2. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   A58-12 (CANH) - A58-13 (CANL)	Engine switch off	54 to 69 Ω
   A58-12 (CANH) - G48-4 (CG)	Engine switch off	200 Ω or higher
   A58-13 (CANL) - G48-4 (CG)	Engine switch off	200 Ω or higher
   A58-12 (CANH) - G48-16 (BAT)	Engine switch off	6 kΩ or higher
   A58-13 (CANL) - G48-16 (BAT)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *a	Front view of wire harness connector (to Headlight Swivel ECU Assembly)
   *b	Front view of DLC3

NG	REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO HEADLIGHT SWIVEL ECU ASSEMBLY (CANH, CANL)

OK
REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY (LandCruiser RM0000038VH021X.html)

26.CONNECT CONNECTOR

1. Reconnect the A72 No. 1 junction connector.
   

NEXT

27.CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR)

1. Disconnect the G102 No. 4 junction connector.
   

2. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G102-3 (CANH) - G102-2 (CANL)	Engine switch off	108 to 132 Ω
   G102-3 (CANH) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G102-2 (CANL) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G102-3 (CANH) - G48-16 (BAT)	Engine switch off	6 kΩ or higher
   G102-2 (CANL) - G48-16 (BAT)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 4 Junction Connector)
   *b	Front view of DLC3

NG	REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 4 JUNCTION CONNECTOR - NO. 1 JUNCTION CONNECTOR)

OK
REPLACE NO. 4 JUNCTION CONNECTOR

28.CONNECT CONNECTOR

1. Reconnect the A72 No. 1 junction connector.
   

NEXT

29.CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 JUNCTION CONNECTOR - NO. 1 JUNCTION CONNECTOR)

1. Disconnect the G95 No. 2 junction connector.
   

2. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G95-3 (CANH) - G95-14 (CANL)	Engine switch off	108 to 132 Ω
   G95-3 (CANH) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G95-14 (CANL) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G95-3 (CANH) - G48-16 (BAT)	Engine switch off	6 kΩ or higher
   G95-14 (CANL) - G48-16 (BAT)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 2 Junction Connector)
   *b	Front view of DLC3

NG	REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 2 JUNCTION CONNECTOR - NO. 1 JUNCTION CONNECTOR)

OK

30.CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 JUNCTION CONNECTOR SIDE)

1. Measure the resistance according to the value(s) in the table below.
   
   

   Standard Resistance:

   for 1KD-FTV

   Tester Connection	Switch Condition	Specified Condition
   G51-26 (CA2H) - G51-25 (CA2L)	Engine switch off	108 to 132 Ω
   G51-26 (CA2H) - G51-6 (GND)	Engine switch off	200 Ω or higher
   G51-25 (CA2L) - G51-6 (GND)	Engine switch off	200 Ω or higher
   G51-26 (CA2H) - G51-1 (AM22)	Engine switch off	6 kΩ or higher
   G51-25 (CA2L) - G51-1 (AM22)	Engine switch off	6 kΩ or higher

   for 1GR-FE, 1GD-FTV

   Tester Connection	Switch Condition	Specified Condition
   G51-12 (CA3P) - G51-11 (CA3N)	Engine switch off	108 to 132 Ω
   G51-12 (CA3P) - G51-6 (GND)	Engine switch off	200 Ω or higher
   G51-11 (CA3N) - G51-6 (GND)	Engine switch off	200 Ω or higher
   G51-12 (CA3P) - G51-1 (AM22)	Engine switch off	6 kΩ or higher
   G51-11 (CA3N) - G51-1 (AM22)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *A	for 1KD-FTV
   *B	for 1GR-FE, 1GD-FTV
   *a	Component with harness connector (Power Management Control ECU)

   Result

   Result	Proceed to
   OK	A
   NG (w/ Blind Spot Monitor System)	B
   NG (w/o Blind Spot Monitor System)	C

B	Go to step 43
C	Go to step 56

A

31.CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 JUNCTION CONNECTOR - CLEARANCE WARNING ECU ASSEMBLY)

NOTICE:

For vehicles without a TOYOTA parking assist-sensor system (for 4 sensor type), go to "Check for Short in CAN Bus Wires (No. 2 Junction Connector - Parking Assist ECU)".

1. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G95-2 (CANH) - G95-13 (CANL)	Engine switch off	200 Ω or higher
   G95-2 (CANH) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G95-13 (CANL) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G95-2 (CANH) - G48-16 (BAT)	Engine switch off	6 kΩ or higher
   G95-13 (CANL) - G48-16 (BAT)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 2 Junction Connector)
   *b	Front view of DLC3

NG	Go to step 35

OK

32.CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 JUNCTION CONNECTOR - PARKING ASSIST ECU)

NOTICE:

For vehicles without a side monitor system, go to "Check for Short in CAN Bus Wires (No. 2 Junction Connector - Stabilizer Control ECU)".

1. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G95-4 (CANH) - G95-15 (CANL)	Engine switch off	200 Ω or higher
   G95-4 (CANH) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G95-15 (CANL) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G95-4 (CANH) - G48-16 (BAT)	Engine switch off	6 kΩ or higher
   G95-15 (CANL) - G48-16 (BAT)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 2 Junction Connector)
   *b	Front view of DLC3

NG	Go to step 37

OK

33.CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 JUNCTION CONNECTOR - STABILIZER CONTROL ECU)

NOTICE:

For vehicles without a kinetic dynamic suspension system, go to "Check for Short in CAN Bus Wires (No. 2 Junction Connector - Seat Belt Control ECU)".

1. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G95-5 (CANH) - G95-16 (CANL)	Engine switch off	200 Ω or higher
   G95-5 (CANH) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G95-16 (CANL) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G95-5 (CANH) - G48-16 (BAT)	Engine switch off	6 kΩ or higher
   G95-16 (CANL) - G48-16 (BAT)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 2 Junction Connector)
   *b	Front view of DLC3

NG	Go to step 39

OK

34.CHECK FOR SHORT IN CAN BUS WIRES (NO. 2 JUNCTION CONNECTOR - SEAT BELT CONTROL ECU)

NOTICE:

For vehicles without a pre-crash safety system, replace No. 2 junction connector.

1. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G95-6 (CANH) - G95-17 (CANL)	Engine switch off	200 Ω or higher
   G95-6 (CANH) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G95-17 (CANL) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G95-6 (CANH) - G48-16 (BAT)	Engine switch off	6 kΩ or higher
   G95-17 (CANL) - G48-16 (BAT)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 2 Junction Connector)
   *b	Front view of DLC3

NG	Go to step 41

OK
REPLACE NO. 2 JUNCTION CONNECTOR

35.CONNECT CONNECTOR

1. Reconnect the G95 No. 2 junction connector.
   

NEXT

36.CHECK FOR SHORT IN CAN BUS WIRES (CLEARANCE WARNING ECU ASSEMBLY)

1. Disconnect the I1 clearance warning ECU assembly connector.
   

2. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   I1-3 (R1) - I1-5 (R2)	Engine switch off	54 to 69 Ω
   I1-3 (R1) - G48-4 (CG)	Engine switch off	200 Ω or higher
   I1-5 (R2) - G48-4 (CG)	Engine switch off	200 Ω or higher
   I1-3 (R1) - G48-16 (BAT)	Engine switch off	6 kΩ or higher
   I1-5 (R2) - G48-16 (BAT)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *a	Front view of wire harness connector (to Clearance Warning ECU Assembly)
   *b	Front view of DLC3

NG	REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO CLEARANCE WARNING ECU ASSEMBLY (R1, R2)

OK
REPLACE CLEARANCE WARNING ECU ASSEMBLY (LandCruiser RM00000470500NX.html)

37.CONNECT CONNECTOR

1. Reconnect the G95 No. 2 junction connector.
   

NEXT

38.CHECK FOR SHORT IN CAN BUS WIRES (PARKING ASSIST ECU)

1. Disconnect the I7 parking assist ECU connector.
   

2. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   I7-40 (CANH) - I7-39 (CANL)	Engine switch off	54 to 69 Ω
   I7-40 (CANH) - G48-4 (CG)	Engine switch off	200 Ω or higher
   I7-39 (CANL) - G48-4 (CG)	Engine switch off	200 Ω or higher
   I7-40 (CANH) - G48-16 (BAT)	Engine switch off	6 kΩ or higher
   I7-39 (CANL) - G48-16 (BAT)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *a	Rear view of wire harness connector (to Parking Assist ECU)
   *b	Front view of DLC3

NG	REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO PARKING ASSIST ECU (CANH, CANL)

OK
REPLACE PARKING ASSIST ECU (LandCruiser RM00000470500OX.html)

39.CONNECT CONNECTOR

1. Reconnect the G95 No. 2 junction connector.
   

NEXT

40.CHECK FOR SHORT IN CAN BUS WIRES (STABILIZER CONTROL ECU)

1. Disconnect the G123 stabilizer control ECU connector.
   

2. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G123-29 (CANH) - G123- 28 (CANL)	Engine switch off	54 to 69 Ω
   G123-29 (CANH) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G123-28 (CANL) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G123-29 (CANH) - G48- 16 (BAT)	Engine switch off	6 kΩ or higher
   G123-28 (CANL) - G48- 16 (BAT)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *a	Rear view of wire harness connector (to Stabilizer Control ECU)
   *b	Front view of DLC3

NG	REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO STABILIZER CONTROL ECU (CANH, CANL)

OK
REPLACE STABILIZER CONTROL ECU (LandCruiser RM000002KLG00RX.html)

41.CONNECT CONNECTOR

1. Reconnect the G95 No. 2 junction connector.
   

NEXT

42.CHECK FOR SHORT IN CAN BUS WIRES (SEAT BELT CONTROL ECU)

1. Disconnect the G118 seat belt control ECU connector.
   

2. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G118-1 (CANH) - G118-2 (CANL)	Engine switch off	54 to 69 Ω
   G118-1 (CANH) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G118-2 (CANL) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G118-1 (CANH) - G48-16 (BAT)	Engine switch off	6 kΩ or higher
   G118-2 (CANL) - G48-16 (BAT)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *a	Rear view of wire harness connector (to Seat Belt Control ECU)
   *b	Front view of DLC3

NG	REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO SEAT BELT CONTROL ECU (CANH, CANL)

OK
REPLACE SEAT BELT CONTROL ECU (LandCruiser RM000003UX700KX.html)

43.CONNECT CONNECTOR

1. Reconnect the G95 No. 2 junction connector.
   

NEXT

44.CHECK FOR SHORT IN CAN BUS WIRES (NO. 6 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)

1. Disconnect the R47 No. 6 junction connector.
   

2. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   R47-1 (CANH) - R47-12 (CANL)	Engine switch off	108 to 132 Ω
   R47-1 (CANH) - G48-4 (CG)	Engine switch off	200 Ω or higher
   R47-12 (CANL) - G48-4 (CG)	Engine switch off	200 Ω or higher
   R47-1 (CANH) - G48-16 (BAT)	Engine switch off	6 kΩ or higher
   R47-12 (CANL) - G48-16 (BAT)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 6 Junction Connector)
   *b	Front view of DLC3

NG	REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 6 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)

OK

45.CHECK FOR SHORT IN CAN BUS WIRES (NO. 6 JUNCTION CONNECTOR SIDE)

1. Measure the resistance according to the value(s) in the table below.
   
   

   Standard Resistance:

   for 1KD-FTV

   Tester Connection	Switch Condition	Specified Condition
   G51-26 (CA2H) - G51-25 (CA2L)	Engine switch off	108 to 132 Ω
   G51-26 (CA2H) - G51-6 (GND)	Engine switch off	200 Ω or higher
   G51-25 (CA2L) - G51-6 (GND)	Engine switch off	200 Ω or higher
   G51-26 (CA2H) - G51-1 (AM22)	Engine switch off	6 kΩ or higher
   G51-25 (CA2L) - G51-1 (AM22)	Engine switch off	6 kΩ or higher

   for 1GR-FE, 1GD-FTV

   Tester Connection	Switch Condition	Specified Condition
   G51-12 (CA3P) - G51-11 (CA3N)	Engine switch off	108 to 132 Ω
   G51-12 (CA3P) - G51-6 (GND)	Engine switch off	200 Ω or higher
   G51-11 (CA3N) - G51-6 (GND)	Engine switch off	200 Ω or higher
   G51-12 (CA3P) - G51-1 (AM22)	Engine switch off	6 kΩ or higher
   G51-11 (CA3N) - G51-1 (AM22)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *A	for 1KD-FTV
   *B	for 1GR-FE, 1GD-FTV
   *a	Component with harness connector (Power Management Control ECU)

NG	Go to step 49

OK

46.CHECK FOR SHORT IN CAN BUS WIRES (NO. 6 JUNCTION CONNECTOR - BLIND SPOT MONITOR SENSOR LH)

1. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   R47-2 (CANH) - R47-13 (CANL)	Engine switch off	200 Ω or higher
   R47-2 (CANH) - G48-4 (CG)	Engine switch off	200 Ω or higher
   R47-13 (CANL) - G48-4 (CG)	Engine switch off	200 Ω or higher
   R47-2 (CANH) - G48-16 (BAT)	Engine switch off	6 kΩ or higher
   R47-13 (CANL) - G48-16 (BAT)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 6 Junction Connector)
   *b	Front view of DLC3

NG	Go to step 47

OK
REPLACE NO. 6 JUNCTION CONNECTOR

47.CONNECT CONNECTOR

1. Reconnect the R47 No. 6 junction connector.
   

NEXT

48.CHECK FOR SHORT IN CAN BUS WIRES (BLIND SPOT MONITOR SENSOR LH)

1. Disconnect the R42 blind spot monitor sensor LH connector.
   

2. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   R42-2 (CA1P) - R42-7 (CA1N)	Engine switch off	54 to 69 Ω
   R42-2 (CA1P) - G48-4 (CG)	Engine switch off	200 Ω or higher
   R42-7 (CA1N) - G48-4 (CG)	Engine switch off	200 Ω or higher
   R42-2 (CA1P) - G48-16 (BAT)	Engine switch off	6 kΩ or higher
   R42-7 (CA1N) - G48-16 (BAT)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *a	Front view of wire harness connector (to Blind Spot Monitor Sensor LH)
   *b	Front view of DLC3

NG	REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO BLIND SPOT MONITOR SENSOR LH (CA1P, CA1N)

OK
REPLACE BLIND SPOT MONITOR SENSOR LH (LandCruiser RM00000470F01GX.html)

49.CONNECT CONNECTOR

1. Reconnect the R47 No. 6 junction connector.
   

NEXT

50.CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - NO. 6 JUNCTION CONNECTOR)

1. Disconnect the G98 No. 3 junction connector.
   

2. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G98-1 (CANH) - G98-12 (CANL)	Engine switch off	108 to 132 Ω
   G98-1 (CANH) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G98-12 (CANL) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G98-1 (CANH) - G48-16 (BAT)	Engine switch off	6 kΩ or higher
   G98-12 (CANL) - G48-16 (BAT)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 3 Junction Connector)
   *b	Front view of DLC3

NG	REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 3 JUNCTION CONNECTOR - NO. 6 JUNCTION CONNECTOR)

OK

51.CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - SUSPENSION CONTROL ECU)

NOTICE:

For vehicles without an air suspension system, go to "Check for Short in CAN Bus Wires (No. 3 Junction Connector - Driving Support ECU Assembly)".

1. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G98-3 (CANH) - G98-14 (CANL)	Engine switch off	200 Ω or higher
   G98-3 (CANH) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G98-14 (CANL) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G98-3 (CANH) - G48-16 (BAT)	Engine switch off	6 kΩ or higher
   G98-14 (CANL) - G48-16 (BAT)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 3 Junction Connector)
   *b	Front view of DLC3

NG	Go to step 63

OK

52.CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - DRIVING SUPPORT ECU ASSEMBLY)

NOTICE:

For vehicles without a pre-crash safety system, go to "Check for Short in CAN Bus Wires (No. 3 Junction Connector - Clearance Warning ECU Assembly)".

1. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G98-4 (CANH) - G98-15 (CANL)	Engine switch off	200 Ω or higher
   G98-4 (CANH) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G98-15 (CANL) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G98-4 (CANH) - G48-16 (BAT)	Engine switch off	6 kΩ or higher
   G98-15 (CANL) - G48-16 (BAT)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 3 Junction Connector)
   *b	Front view of DLC3

NG	Go to step 65

OK

53.CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - CLEARANCE WARNING ECU ASSEMBLY)

NOTICE:

For vehicles without a TOYOTA parking assist-sensor system (for 8 sensor type), go to "Check for Short in CAN Bus Wires (No. 3 Junction Connector - Air Conditioning Amplifier Assembly)".

1. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G98-5 (CANH) - G98-16 (CANL)	Engine switch off	200 Ω or higher
   G98-5 (CANH) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G98-16 (CANL) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G98-5 (CANH) - G48-16 (BAT)	Engine switch off	6 kΩ or higher
   G98-16 (CANL) - G48-16 (BAT)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 3 Junction Connector)
   *b	Front view of DLC3

NG	Go to step 67

OK

54.CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY)

NOTICE:

For vehicles with 1KD-FTV, go to "Check for Short in CAN Bus Wires (No. 3 Junction Connector - Power Management Control ECU)".

1. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G98-6 (CANH) - G98-17 (CANL)	Engine switch off	200 Ω or higher
   G98-6 (CANH) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G98-17 (CANL) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G98-6 (CANH) - G48-16 (BAT)	Engine switch off	6 kΩ or higher
   G98-17 (CANL) - G48-16 (BAT)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 3 Junction Connector)
   *b	Front view of DLC3

NG	Go to step 69

OK

55.CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - POWER MANAGEMENT CONTROL ECU)

1. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G98-2 (CANH) - G98-13 (CANL)	Engine switch off	108 to 132 Ω
   G98-2 (CANH) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G98-13 (CANL) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G98-2 (CANH) - G48-16 (BAT)	Engine switch off	6 kΩ or higher
   G98-13 (CANL) - G48-16 (BAT)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 3 Junction Connector)
   *b	Front view of DLC3

NG	Go to step 71

OK
REPLACE NO. 3 JUNCTION CONNECTOR

56.CONNECT CONNECTOR

1. Reconnect the G95 No. 2 junction connector.
   

NEXT

57.CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)

1. Disconnect the G98 No. 3 junction connector.
   

2. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G98-1 (CANH) - G98-12 (CANL)	Engine switch off	108 to 132 Ω
   G98-1 (CANH) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G98-12 (CANL) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G98-1 (CANH) - G48-16 (BAT)	Engine switch off	6 kΩ or higher
   G98-12 (CANL) - G48-16 (BAT)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 3 Junction Connector)
   *b	Front view of DLC3

NG	REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 3 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR)

OK

58.CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - SUSPENSION CONTROL ECU)

NOTICE:

For vehicles without an air suspension system, go to "Check for Short in CAN Bus Wires (No. 3 Junction Connector - Driving Support ECU Assembly)".

1. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G98-3 (CANH) - G98-14 (CANL)	Engine switch off	200 Ω or higher
   G98-3 (CANH) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G98-14 (CANL) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G98-3 (CANH) - G48-16 (BAT)	Engine switch off	6 kΩ or higher
   G98-14 (CANL) - G48-16 (BAT)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 3 Junction Connector)
   *b	Front view of DLC3

NG	Go to step 63

OK

59.CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - DRIVING SUPPORT ECU ASSEMBLY)

NOTICE:

For vehicles without a pre-crash safety system, go to "Check for Short in CAN Bus Wires (No. 3 Junction Connector - Clearance Warning ECU Assembly)".

1. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G98-4 (CANH) - G98-15 (CANL)	Engine switch off	200 Ω or higher
   G98-4 (CANH) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G98-15 (CANL) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G98-4 (CANH) - G48-16 (BAT)	Engine switch off	6 kΩ or higher
   G98-15 (CANL) - G48-16 (BAT)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 3 Junction Connector)
   *b	Front view of DLC3

NG	Go to step 65

OK

60.CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - CLEARANCE WARNING ECU ASSEMBLY)

NOTICE:

For vehicles without a TOYOTA parking assist-sensor system (for 8 sensor type), go to "Check for Short in CAN Bus Wires (No. 3 Junction Connector - Air Conditioning Amplifier Assembly)".

1. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G98-5 (CANH) - G98-16 (CANL)	Engine switch off	200 Ω or higher
   G98-5 (CANH) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G98-16 (CANL) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G98-5 (CANH) - G48-16 (BAT)	Engine switch off	6 kΩ or higher
   G98-16 (CANL) - G48-16 (BAT)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 3 Junction Connector)
   *b	Front view of DLC3

NG	Go to step 67

OK

61.CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER ASSEMBLY)

NOTICE:

For vehicles with 1KD-FTV, go to "Check for Short in CAN Bus Wires (No. 3 Junction Connector - Power Management Control ECU)".

1. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G98-6 (CANH) - G98-17 (CANL)	Engine switch off	200 Ω or higher
   G98-6 (CANH) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G98-17 (CANL) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G98-6 (CANH) - G48-16 (BAT)	Engine switch off	6 kΩ or higher
   G98-17 (CANL) - G48-16 (BAT)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 3 Junction Connector)
   *b	Front view of DLC3

NG	Go to step 69

OK

62.CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 JUNCTION CONNECTOR - POWER MANAGEMENT CONTROL ECU)

1. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G98-2 (CANH) - G98-13 (CANL)	Engine switch off	108 to 132 Ω
   G98-2 (CANH) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G98-13 (CANL) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G98-2 (CANH) - G48-16 (BAT)	Engine switch off	6 kΩ or higher
   G98-13 (CANL) - G48-16 (BAT)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 3 Junction Connector)
   *b	Front view of DLC3

NG	Go to step 71

OK
REPLACE NO. 3 JUNCTION CONNECTOR

63.CONNECT CONNECTOR

1. Reconnect the G98 No. 3 junction connector.
   

NEXT

64.CHECK FOR SHORT IN CAN BUS WIRES (SUSPENSION CONTROL ECU)

1. Disconnect the A49 suspension control ECU connector.
   

2. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   A49-7 (CANH) - A49-8 (CANL)	Engine switch off	54 to 69 Ω
   A49-7 (CANH) - G48-4 (CG)	Engine switch off	200 Ω or higher
   A49-8 (CANL) - G48-4 (CG)	Engine switch off	200 Ω or higher
   A49-7 (CANH) - G48-16 (BAT)	Engine switch off	6 kΩ or higher
   A49-8 (CANL) - G48-16 (BAT)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *a	Rear view of wire harness connector (to Suspension Control ECU)
   *b	Front view of DLC3

NG	REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO SUSPENSION CONTROL ECU (CANH, CANL)

OK
REPLACE SUSPENSION CONTROL ECU (LandCruiser RM000002BGR01UX.html)

65.CONNECT CONNECTOR

1. Reconnect the G98 No. 3 junction connector.
   

NEXT

66.CHECK FOR SHORT IN CAN BUS WIRES (DRIVING SUPPORT ECU ASSEMBLY)

1. Disconnect the G119 driving support ECU assembly connector.
   

2. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G119-39 (CA2H) - G119- 17 (CA2L)	Engine switch off	54 to 69 Ω
   G119-39 (CA2H) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G119-17 (CA2L) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G119-39 (CA2H) - G48- 16 (BAT)	Engine switch off	6 kΩ or higher
   G119-17 (CA2L) - G48- 16 (BAT)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *a	Rear view of wire harness connector (to Driving Support ECU Assembly)
   *b	Front view of DLC3

NG	REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO DRIVING SUPPORT ECU ASSEMBLY (CA2H, CA2L)

OK
REPLACE DRIVING SUPPORT ECU ASSEMBLY (LandCruiser RM000002OJO01NX.html)

67.CONNECT CONNECTOR

1. Reconnect the G98 No. 3 junction connector.
   

NEXT

68.CHECK FOR SHORT IN CAN BUS WIRES (CLEARANCE WARNING ECU ASSEMBLY)

1. Disconnect the G154 clearance warning ECU assembly connector.
   

2. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G154-3 (R1) - G154-5 (R2)	Engine switch off	54 to 69 Ω
   G154-3 (R1) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G154-5 (R2) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G154-3 (R1) - G48-16 (BAT)	Engine switch off	6 kΩ or higher
   G154-5 (R2) - G48-16 (BAT)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *a	Front view of wire harness connector (to Clearance Warning ECU Assembly)
   *b	Front view of DLC3

NG	REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO CLEARANCE WARNING ECU ASSEMBLY (R1, R2)

OK
REPLACE CLEARANCE WARNING ECU ASSEMBLY (LandCruiser RM00000470500NX.html)

69.CONNECT CONNECTOR

1. Reconnect the G98 No. 3 junction connector.
   

NEXT

70.CHECK FOR SHORT IN CAN BUS WIRES (AIR CONDITIONING AMPLIFIER ASSEMBLY)

1. Disconnect the G25 air conditioning amplifier assembly connector.
   

2. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G25-11 (CANH) - G25-12 (CANL)	Engine switch off	54 to 69 Ω
   G25-11 (CANH) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G25-12 (CANL) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G25-11 (CANH) - G48-16 (BAT)	Engine switch off	6 kΩ or higher
   G25-11 (CANH) - G48-16 (BAT)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *a	Front view of wire harness connector (to Air Conditioning Amplifier Assembly)
   *b	Front view of DLC3

NG	REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO AIR CONDITIONING AMPLIFIER ASSEMBLY (CANH, CANL)

OK
REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY (LandCruiser RM0000039R5028X.html)

71.CONNECT CONNECTOR

1. Reconnect the G98 No. 3 junction connector.
   

NEXT

72.CHECK FOR SHORT IN CAN BUS WIRES (POWER MANAGEMENT CONTROL ECU)

1. Disconnect the G51 power management control ECU connector.
   

2. Measure the resistance according to the value(s) in the table below.
   
   

   Standard Resistance:

   for 1KD-FTV

   Tester Connection	Switch Condition	Specified Condition
   G51-26 (CA2H) - G51-25 (CA2L)	Engine switch off	108 to 132 Ω
   G51-26 (CA2H) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G51-25 (CA2L) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G51-26 (CA2H) - G48-16 (BAT)	Engine switch off	6 kΩ or higher
   G51-25 (CA2L) - G48-16 (BAT)	Engine switch off	6 kΩ or higher

   for 1GR-FE, 1GD-FTV

   Tester Connection	Switch Condition	Specified Condition
   G51-12 (CA3P) - G51-11 (CA3N)	Engine switch off	108 to 132 Ω
   G51-12 (CA3P) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G51-11 (CA3N) - G48-4 (CG)	Engine switch off	200 Ω or higher
   G51-12 (CA3P) - G48-16 (BAT)	Engine switch off	6 kΩ or higher
   G51-11 (CA3N) - G48-16 (BAT)	Engine switch off	6 kΩ or higher

   Text in Illustration

   *A	for 1KD-FTV
   *B	for 1GR-FE, 1GD-FTV
   *a	Rear view of wire harness connector (to Power Management Control ECU)
   *b	Front view of DLC3

   Result

   Result	Proceed to
   OK	A
   NG (for 1KD-FTV)	B
   NG (for 1GR-FE, 1GD-FTV)	C

B	REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO POWER MANAGEMENT CONTROL ECU (CA2H, CA2L)
C	REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO POWER MANAGEMENT CONTROL ECU (CA3P, CA3H)

A
REPLACE POWER MANAGEMENT CONTROL ECU (LandCruiser RM0000039R5026X.html)

73.CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - BATTERY AND BODY GROUND)

1. Connect the cable to the negative (-) battery terminal.
   

   NOTICE:

   When disconnecting the cable, some systems need to be initialized after the cable is reconnected (LandCruiser RM000003YMF011X.html)

2. Disconnect the G51 power management control ECU connector.
   

3. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   G51-5 (GND2) - Body ground	Always	Below 1 Ω
   G51-6 (GND) - Body ground	Always	Below 1 Ω

4. Measure the voltage according to the value(s) in the table below.
   

   Standard Voltage:

   Tester Connection	Condition	Specified Condition
   G51-1 (AM22) - Body ground	Always	11 to 14 V
   G51-2 (AM21) - Body ground	Always	11 to 14 V

Text in Illustration

*a	Rear view of wire harness connector (to Power Management Control ECU)

NG	REPAIR OR REPLACE HARNESS OR CONNECTOR

OK
REPLACE POWER MANAGEMENT CONTROL ECU (LandCruiser RM0000039R5026X.html)