Can Communication System (For Lhd Without Entry And Start System) Open In Can Main Wire

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

CHECK FOR OPEN IN CAN BUS WIRE (NO. 3 JUNCTION CONNECTOR - DLC3)

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

CHECK FOR OPEN IN CAN BUS WIRE (NO. 3 JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)

CONNECT CONNECTOR

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

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

CONNECT CONNECTOR

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

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

CONNECT CONNECTOR

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

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

CONNECT CONNECTOR

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

CONNECT CONNECTOR

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

CONNECT CONNECTOR

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

CONNECT CONNECTOR

CHECK FOR OPEN IN CAN BUS WIRE (NO. 5 JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)

CHECK FOR OPEN IN CAN BUS WIRE (NO. 5 JUNCTION CONNECTOR - NO. 3 JUNCTION CONNECTOR)

CONNECT CONNECTOR

CHECK FOR OPEN IN CAN BUS WIRE (COMBINATION METER ASSEMBLY - NO. 5 JUNCTION CONNECTOR)

CONNECT CONNECTOR

CHECK FOR OPEN IN CAN BUS WIRE (COMBINATION METER ASSEMBLY - NO. 3 JUNCTION CONNECTOR)

CAN COMMUNICATION SYSTEM (for LHD without Entry and Start System) - Open in CAN Main Wire

DESCRIPTION

There may be an open circuit in the CAN main wire and/or DLC3 CAN branch wire when the resistance between terminals 6 (CANH) and 14 (CANL) of the DLC3 is 70 Ω or higher.

Symptom	Trouble Area
The resistance between terminals 6 (CANH) and 14 (CANL) of the DLC3 is 70 Ω or higher.	CAN main wire and connector ECM No. 1 junction connector No. 2 junction connector No. 3 junction connector No. 4 junction connector*1 No. 5 junction connector*2 Combination meter assembly DLC3 CAN branch wire or connector

1. *1: for 2TR-FE, 5L-E
   
2. *2: for 1KD-FTV
   

WIRING DIAGRAM

INSPECTION PROCEDURE

HINT:

Operating the ignition 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 ignition 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 FOR OPEN IN CAN BUS WIRE (NO. 3 JUNCTION CONNECTOR - DLC3)

1. Disconnect the G94 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
   G94-5 (CANH) - G48-6 (CANH)	Ignition switch off	Below 1 Ω
   G94-16 (CANL) - G48-14 (CANL)	Ignition switch off	Below 1 Ω

   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 BRANCH WIRE CONNECTED TO DLC3 (CANH, CANL)

OK

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

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

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G94-1 (CANH) - G94-12 (CANL)	Ignition 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 WIRE (NO. 3 JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)

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

   Standard Resistance:

   for 1KD-FTV

   Tester Connection	Switch Condition	Specified Condition
   G94-6 (CANH) - G94-17 (CANL)	Ignition switch off	108 to 132 Ω

   for 2TR-FE, 5L-E

   Tester Connection	Switch Condition	Specified Condition
   G94-2 (CANH) - G94-13 (CANL)	Ignition switch off	108 to 132 Ω

   Text in Illustration

   *A	for 1KD-FTV
   *B	for 2TR-FE, 5L-E
   *a	Rear view of wire harness connector (to No. 3 Junction Connector)

   Result

   Result	Proceed to
   OK	A
   NG (for 1KD-FTV)	B
   NG (for 2TR-FE, 5L-E)	C

B	Go to step 20
C	Go to step 25

A
REPLACE NO. 3 JUNCTION CONNECTOR

5.CONNECT CONNECTOR

1. Reconnect the G94 No. 3 junction connector.
   

NEXT

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

1. Disconnect the G100 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
   G100-1 (CANH) - G100-12 (CANL)	Ignition 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 8

OK

7.CHECK FOR OPEN IN CAN BUS 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
   G100-6 (CANH) - G100-17 (CANL)	Ignition 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

8.CONNECT CONNECTOR

1. Reconnect the G100 No. 2 junction connector.
   

NEXT

9.CHECK FOR OPEN IN CAN BUS WIRE (NO. 1 JUNCTION CONNECTOR - ECM)

1. Disconnect the G97 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
   G97-6 (CANH) - G97-17 (CANL)	Ignition switch off	108 to 132 Ω

   Text in Illustration

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

   Result

   Result	Proceed to
   OK	A
   NG (for 2TR-FE, 5L-E)	B
   NG (for 1KD-FTV)	C

B	Go to step 11
C	Go to step 14

A

10.CHECK FOR OPEN IN CAN BUS 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
   G97-1 (CANH) - G97-12 (CANL)	Ignition 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

11.CONNECT CONNECTOR

1. Reconnect the G97 No. 1 junction connector.
   

NEXT

12.CHECK FOR OPEN IN CAN BUS WIRE (NO. 4 JUNCTION CONNECTOR - ECM)

1. Disconnect the A72 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
   A72-10 (CANH) - A72-21 (CANL)	Ignition switch off	108 to 132 Ω

   Text in Illustration

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

   Result

   Result	Proceed to
   OK	A
   NG (for 2TR-FE)	B
   NG (for 5L-E)	C

B	Go to step 16
C	Go to step 18

A

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

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

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   A72-9 (CANH) - A72-20 (CANL)	Ignition 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

14.CONNECT CONNECTOR

1. Reconnect the G97 No. 1 junction connector.
   

NEXT

15.CHECK FOR OPEN IN CAN BUS WIRE (ECM - NO. 1 JUNCTION CONNECTOR)

1. Disconnect the G58 ECM connector.
   

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

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G58-35 (CANH) - G58-36 (CANL)	Ignition switch off	108 to 132 Ω

   Text in Illustration

   *a	Front view of wire harness connector (to ECM)

NG	REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO ECM (ECM - NO. 1 JUNCTION CONNECTOR)

OK
REPLACE ECM (LandCruiser RM0000013Z002CX.html)

16.CONNECT CONNECTOR

1. Reconnect the A72 No. 4 junction connector.
   

NEXT

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

1. Disconnect the G181 ECM connector.
   

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

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G181-13 (CANH) - G181-14 (CANL)	Ignition switch off	108 to 132 Ω

   Text in Illustration

   *a	Front view of wire harness connector (to ECM)

NG	REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO ECM (ECM - NO. 4 JUNCTION CONNECTOR)

OK
REPLACE ECM (LandCruiser RM000000VW203EX.html)

18.CONNECT CONNECTOR

1. Reconnect the A72 No. 4 junction connector.
   

NEXT

19.CHECK FOR OPEN IN CAN BUS WIRE (ECM - NO. 4 JUNCTION CONNECTOR)

1. Disconnect the G183 ECM connector.
   

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

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G183-25 (CANH) - G183-31 (CANL)	Ignition switch off	108 to 132 Ω

   Text in Illustration

   *a	Front view of wire harness connector (to ECM)

NG	REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO ECM (ECM - NO. 4 JUNCTION CONNECTOR)

OK
REPLACE ECM (LandCruiser RM000000VW203FX.html)

20.CONNECT CONNECTOR

1. Reconnect the G94 No. 3 junction connector.
   

NEXT

21.CHECK FOR OPEN IN CAN BUS WIRE (NO. 5 JUNCTION CONNECTOR - COMBINATION METER ASSEMBLY)

1. Disconnect the A73 No. 5 junction connector.
   

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

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   A73-10 (CANH) - A73-21 (CANL)	Ignition switch off	108 to 132 Ω

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 5 Junction Connector)

NG	Go to step 23

OK

22.CHECK FOR OPEN IN CAN BUS WIRE (NO. 5 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
   A73-9 (CANH) - A73-20 (CANL)	Ignition switch off	108 to 132 Ω

   Text in Illustration

   *a	Rear view of wire harness connector (to No. 5 Junction Connector)

NG	REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 5 JUNCTION CONNECTOR - NO. 3 JUNCTION CONNECTOR)

OK
REPLACE NO. 5 JUNCTION CONNECTOR

23.CONNECT CONNECTOR

1. Reconnect the A73 No. 5 junction connector.
   

NEXT

24.CHECK FOR OPEN IN CAN BUS WIRE (COMBINATION METER ASSEMBLY - NO. 5 JUNCTION CONNECTOR)

1. Disconnect the G6 combination meter assembly connector.
   

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

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G6-40 (CANH) - G6-39 (CANL)	Ignition switch off	108 to 132 Ω

   Text in Illustration

   *a	Front view of wire harness connector (to Combination Meter Assembly)

NG	REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO COMBINATION METER ASSEMBLY (COMBINATION METER ASSEMBLY - NO. 5 JUNCTION CONNECTOR)

OK
REPLACE COMBINATION METER ASSEMBLY (LandCruiser RM000003QKY01CX.html)

25.CONNECT CONNECTOR

1. Reconnect the G94 No. 3 junction connector.
   

NEXT

26.CHECK FOR OPEN IN CAN BUS WIRE (COMBINATION METER ASSEMBLY - NO. 3 JUNCTION CONNECTOR)

1. Disconnect the G6 combination meter assembly connector.
   

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

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   G6-40 (CANH) - G6-39 (CANL)	Ignition switch off	108 to 132 Ω

   Text in Illustration

   *a	Front view of wire harness connector (to Combination Meter Assembly)

NG	REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO COMBINATION METER ASSEMBLY (COMBINATION METER ASSEMBLY - NO. 3 JUNCTION CONNECTOR)

OK
REPLACE COMBINATION METER ASSEMBLY (LandCruiser RM000003QKY01CX.html)