DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
PRECAUTION
DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
CHECK CAN BUS WIRE (CAN MAIN WIRE FOR DISCONNECTION, CHECK BUS LINE FOR SHORT CIRCUIT)
CHECK FOR OPEN IN MAIN BUS WIRE (NO. 7 JUNCTION CONNECTOR - NETWORK GATEWAY ECU)
CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 7 JUNCTION CONNECTOR - NO. 1 CAN JUNCTION CONNECTOR)
CONNECT CONNECTOR
CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 6 JUNCTION CONNECTOR - NO. 7 JUNCTION CONNECTOR)
CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 6 JUNCTION CONNECTOR - NETWORK GATEWAY ECU)
CONNECT CONNECTOR
CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 5 JUNCTION CONNECTOR - NO. 6 JUNCTION CONNECTOR)
CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 5 JUNCTION CONNECTOR - NETWORK GATEWAY ECU)
CONNECT CONNECTOR
CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 4 JUNCTION CONNECTOR - NO. 5 JUNCTION CONNECTOR)
CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 4 JUNCTION CONNECTOR - NETWORK GATEWAY ECU)
CONNECT CONNECTOR
CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 1 CAN JUNCTION CONNECTOR - NO. 7 JUNCTION CONNECTOR)
CONNECT CONNECTOR
CHECK FOR OPEN IN CAN BUS MAIN WIRE (NETWORK GATEWAY ECU - NO. 4 JUNCTION CONNECTOR)
CHECK FOR SHORT IN CAN BUS WIRES (NO. 7 JUNCTION CONNECTOR SIDE)
CHECK FOR SHORT IN CAN BUS WIRES (NO. 7 JUNCTION CONNECTOR - STEERING CONTROL ECU)
CHECK FOR SHORT IN CAN BUS WIRES (NO. 7 JUNCTION CONNECTOR - STEERING ANGLE SENSOR)
CHECK FOR SHORT IN CAN BUS WIRES (NO. 7 JUNCTION CONNECTOR - SKID CONTROL ECU)
CHECK FOR SHORT IN CAN BUS WIRES (NO. 7 JUNCTION CONNECTOR - NO. 1 CAN JUNCTION CONNECTOR)
CONNECT CONNECTOR
CHECK FOR SHORT IN CAN BUS WIRES (NO. 6 JUNCTION CONNECTOR - NO. 7 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 - CLEARANCE WARNING ECU ASSEMBLY)
CHECK FOR SHORT IN CAN BUS WIRES (NO. 6 JUNCTION CONNECTOR - PARKING ASSIST ECU)
CONNECT CONNECTOR
CHECK FOR SHORT IN CAN BUS WIRES (NO. 5 JUNCTION CONNECTOR - NO. 6 JUNCTION CONNECTOR)
CHECK FOR SHORT IN CAN BUS WIRES (NO. 5 JUNCTION CONNECTOR SIDE)
CHECK FOR SHORT IN CAN BUS WIRES (NO. 5 JUNCTION CONNECTOR - DISTANCE CONTROL ECU ASSEMBLY)
CHECK FOR SHORT IN CAN BUS WIRES (NO. 5 JUNCTION CONNECTOR - SEAT BELT CONTROL ECU)
CHECK FOR SHORT IN CAN BUS WIRES (NO. 5 JUNCTION CONNECTOR - YAW RATE SENSOR ASSEMBLY)
CONNECT CONNECTOR
CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - NO. 5 JUNCTION CONNECTOR)
CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - POWER STEERING ECU ASSEMBLY)
CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - 4WD CONTROL ECU)
CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - NETWORK GATEWAY ECU)
CONNECT CONNECTOR
CHECK FOR SHORT IN CAN BUS WIRES (STEERING CONTROL ECU)
CONNECT CONNECTOR
CHECK FOR SHORT IN CAN BUS WIRES (STEERING ANGLE SENSOR)
CONNECT CONNECTOR
CHECK FOR SHORT IN CAN BUS WIRES (SKID CONTROL ECU)
CONNECT CONNECTOR
CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 CAN JUNCTION CONNECTOR - SUSPENSION CONTROL ECU)
CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 CAN JUNCTION CONNECTOR)
CONNECT CONNECTOR
CHECK FOR SHORT IN CAN BUS WIRES (SUSPENSION CONTROL ECU)
CONNECT CONNECTOR
CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 CAN JUNCTION CONNECTOR)
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 (DISTANCE CONTROL ECU ASSEMBLY)
CONNECT CONNECTOR
CHECK FOR SHORT IN CAN BUS WIRES (SEAT BELT CONTROL ECU)
CONNECT CONNECTOR
CHECK FOR SHORT IN CAN BUS WIRES (YAW RATE SENSOR ASSEMBLY)
CONNECT CONNECTOR
CHECK FOR SHORT IN CAN BUS WIRES (POWER STEERING ECU ASSEMBLY)
CONNECT CONNECTOR
CHECK FOR SHORT IN CAN BUS WIRES (4WD CONTROL ECU)
CONNECT CONNECTOR
CHECK FOR SHORT IN CAN BUS WIRES (NETWORK GATEWAY ECU)
CHECK HARNESS AND CONNECTOR (NETWORK GATEWAY ECU - BATTERY AND BODY GROUND)
DTC U1002 (CAN No. 2 BUS) Lost Communication with Gateway Module (Network Gateway ECU)
DESCRIPTION
The network gateway ECU stores this DTC when no signals can be received from the ECUs that have been memorized as those connected to the CAN movement control bus.
When the network gateway ECU receives a response signal from the ECUs connected to the CAN movement control bus, the network gateway ECU recognizes and memorizes that the ECU is connected to the CAN movement control bus. Based on this memorized data, the network gateway ECU monitors for malfunctions in the ECUs connected to the CAN movement control bus when communicating with those ECUs. If the network gateway ECU cannot receive response signals from the ECUs that have been memorized as those connected to the CAN movement control bus, the network gateway ECU determines that a malfunction exists.
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 | Symptoms | Trouble Area |
| U1002 (CAN No. 2 BUS) | Lost communication with the gateway module (network gateway ECU). | Movement control bus circuit
4WD control ECU CAN branch wire or connector
Power steering ECU assembly CAN branch wire or connector*1
Yaw rate sensor assembly CAN branch wire or connector*2
Distance control ECU assembly CAN branch wire or connector*3
Seat belt control ECU CAN branch wire or connector*4
Parking assist ECU CAN branch wire or connector*5
Clearance warning ECU assembly CAN branch wire or connector*6
Master cylinder solenoid (skid control ECU) CAN branch wire or connector
Steering angle sensor CAN branch wire or connector*2
Network gateway ECU CAN main wire or connector
Steering control ECU CAN branch wire or connector*7
Suspension control ECU CAN branch wire or connector*8
4WD control ECU
Power steering ECU assembly*1
Yaw rate sensor assembly*2
Distance control ECU assembly*3
Seat belt control ECU*4
Parking assist ECU*5
Clearance warning ECU assembly*6
Master cylinder solenoid (skid control ECU)
Steering angle sensor*2
Steering control ECU*7
Suspension control ECU*8
Network gateway ECU
No. 4 junction connector
No. 5 junction connector
No. 6 junction connector
No. 7 junction connector
No. 1 CAN junction connector
|
*1: for 1VD-FTV with DPF
*2: w/ Vehicle Stability Control System
*3: w/ Dynamic Radar Cruise Control System
*4: w/ Pre-crash Safety System
*5: w/ Side Monitor System
*6: w/ TOYOTA Parking Assist-sensor System and w/o Side Monitor System
*7: w/ Variable Gear Ratio Steering System
*8: w/ Active Height Control Suspension System
For vehicles with a network gateway ECU.
WIRING DIAGRAM
INSPECTION PROCEDURE
- Operating the ignition switch, any switches or any doors triggers related ECU and sensor communication with the CAN, which causes resistance variation.
- 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 ().
| 2.DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL |
Disconnect the cable from the negative (-) battery terminal before measuring the resistances of the CAN main wire and the CAN branch wire.
- For vehicles with an SRS system:
- Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
- When disconnecting the cable, some systems need to be initialized after the cable is reconnected ().
| 3.CHECK CAN BUS WIRE (CAN MAIN WIRE FOR DISCONNECTION, CHECK BUS LINE FOR SHORT CIRCUIT) |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition | Resistance Malfunction |
| E31-13 (CA2H) - E31-12 (CA2L) | Ignition switch off | 54 to 69 Ω | Below 53 Ω: Short in line |
| E31-13 (CA2H) - E31-12 (CA2L) | Ignition switch off | 54 to 69 Ω | 70 Ω or higher: Open in CAN main bus line |
| E31-13 (CA2H) - E31-2 (BATT) | Ignition switch off | 6 kΩ or higher | Below 6 kΩ: +B short |
| E31-12 (CA2L) - E31-2 (BATT) | Ignition switch off | 6 kΩ or higher | Below 6 kΩ: +B short |
| E31-13 (CA2H) - E31-4 (GND) | Ignition switch off | 200 Ω or higher | Below 200 Ω: Ground short |
| E31-12 (CA2L) - E31-4 (GND) | Ignition switch off | 200 Ω or higher | Below 200 Ω: Ground short |
Text in Illustration| *a | Component with harness connected
(Network Gateway ECU) |
Result| Result | Proceed to |
NG
| A |
NG
Short in line
+B short
Ground short
| B |
| OK | C |
| 4.CHECK FOR OPEN IN MAIN BUS WIRE (NO. 7 JUNCTION CONNECTOR - NETWORK GATEWAY ECU) |
Disconnect the E74 No. 7 junction connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| E74-2 (CANH) - E74-13 (CANL) | Ignition switch off | 108 to 132 Ω |
Text in Illustration| *a | Rear view of wire harness connector
(to No. 7 Junction Connector) |
| 5.CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 7 JUNCTION CONNECTOR - NO. 1 CAN JUNCTION CONNECTOR) |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| E74-1 (CANH) - E74-12 (CANL) | Ignition switch off | 108 to 132 Ω |
Text in Illustration| *a | Rear view of wire harness connector
(to No. 7 Junction Connector) |
| OK | |
| |
| REPLACE NO. 7 JUNCTION CONNECTOR |
|
Reconnect the E74 No. 7 junction connector.
| 7.CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 6 JUNCTION CONNECTOR - NO. 7 JUNCTION CONNECTOR) |
Disconnect the F73 No. 6 junction connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| F73-6 (CANH) - F73-17 (CANL) | Ignition switch off | 108 to 132 Ω |
Text in Illustration| *a | Rear view of wire harness connector
(to No. 6 Junction Connector) |
| | REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 6 JUNCTION CONNECTOR - NO. 7 JUNCTION CONNECTOR) |
|
|
| 8.CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 6 JUNCTION CONNECTOR - NETWORK GATEWAY ECU) |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| F73-7 (CANH) - F73-18 (CANL) | Ignition switch off | 108 to 132 Ω |
Text in Illustration| *a | Rear view of wire harness connector
(to No. 6 Junction Connector) |
| OK | |
| |
| REPLACE NO. 6 JUNCTION CONNECTOR |
|
Reconnect the F73 No. 6 junction connector.
| 10.CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 5 JUNCTION CONNECTOR - NO. 6 JUNCTION CONNECTOR) |
Disconnect the E68 No. 5 junction connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| E68-2 (CANH) - E68-13 (CANL) | Ignition switch off | 108 to 132 Ω |
Text in Illustration| *a | Rear view of wire harness connector
(to No. 5 Junction Connector) |
| | REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 5 JUNCTION CONNECTOR - NO. 6 JUNCTION CONNECTOR) |
|
|
| 11.CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 5 JUNCTION CONNECTOR - NETWORK GATEWAY ECU) |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| E68-1 (CANH) - E68-12 (CANL) | Ignition switch off | 108 to 132 Ω |
Text in Illustration| *a | Rear view of wire harness connector
(to No. 5 Junction Connector) |
| OK | |
| |
| REPLACE NO. 5 JUNCTION CONNECTOR |
|
Reconnect the E68 No. 5 junction connector.
| 13.CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 4 JUNCTION CONNECTOR - NO. 5 JUNCTION CONNECTOR) |
Disconnect the E71 No. 4 junction connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| E71-1 (CANH) - E71-12 (CANL) | Ignition switch off | 108 to 132 Ω |
Text in Illustration| *a | Rear view of wire harness connector
(to No. 4 Junction Connector) |
| | REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 4 JUNCTION CONNECTOR - NO. 5 JUNCTION CONNECTOR) |
|
|
| 14.CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 4 JUNCTION CONNECTOR - NETWORK GATEWAY ECU) |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| E71-2 (CANH) - E71-13 (CANL) | Ignition switch off | 108 to 132 Ω |
Text in Illustration| *a | Rear view of wire harness connector
(to No. 4 Junction Connector) |
| OK | |
| |
| REPLACE NO. 4 JUNCTION CONNECTOR |
|
Reconnect the E74 No. 7 junction connector.
| 16.CHECK FOR OPEN IN CAN BUS MAIN WIRE (NO. 1 CAN JUNCTION CONNECTOR - NO. 7 JUNCTION CONNECTOR) |
Disconnect the K29 No. 1 CAN junction connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| K29-1 (CANH) - K29-2 (CANL) | Ignition switch off | 108 to 132 Ω |
Text in Illustration| *a | Rear view of wire harness connector
(to No. 1 CAN Junction Connector) |
| | REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 1 CAN JUNCTION CONNECTOR - NO. 7 JUNCTION CONNECTOR) |
|
|
| OK | |
| |
| REPLACE NO. 1 CAN JUNCTION CONNECTOR |
|
Reconnect the E71 No. 4 junction connector.
| 18.CHECK FOR OPEN IN CAN BUS MAIN WIRE (NETWORK GATEWAY ECU - NO. 4 JUNCTION CONNECTOR) |
Disconnect the E31 network gateway ECU connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| E31-13 (CA2H) - E31-12 (CA2L) | Ignition switch off | 108 to 132 Ω |
Text in Illustration| *a | Rear view of wire harness connector
(to Network Gateway ECU) |
| | REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO NETWORK GATEWAY ECU (NETWORK GATEWAY ECU - NO. 4 JUNCTION CONNECTOR) |
|
|
| OK | |
| |
| REPLACE NETWORK GATEWAY ECU ()
|
|
| 19.CHECK FOR SHORT IN CAN BUS WIRES (NO. 7 JUNCTION CONNECTOR SIDE) |
Disconnect the E74 No. 7 junction connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| E31-13 (CA2H) - E31-12 (CA2L) | Ignition switch off | 108 to 132 Ω |
| E31-13 (CA2H) - E31-4 (GND) | Ignition switch off | 200 Ω or higher |
| E31-12 (CA2L) - E31-4 (GND) | Ignition switch off | 200 Ω or higher |
| E31-13 (CA2H) - E31-2 (BATT) | Ignition switch off | 6 kΩ or higher |
| E31-12 (CA2L) - E31-2 (BATT) | Ignition switch off | 6 kΩ or higher |
Text in Illustration| *a | Component with harness connected
(Network Gateway ECU) |
| 20.CHECK FOR SHORT IN CAN BUS WIRES (NO. 7 JUNCTION CONNECTOR - STEERING CONTROL ECU) |
- For vehicles without a variable gear ratio steering system, go to "Check for Short in CAN Bus Wires (No. 7 Junction Connector - Steering Angle Sensor)".
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| E74-3 (CANH) - E74-14 (CANL) | Ignition switch off | 200 Ω or higher |
| E74-3 (CANH) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E74-14 (CANL) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E74-3 (CANH) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
| E74-14 (CANL) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
Text in Illustration| *a | Rear view of wire harness connector
(to No. 7 Junction Connector) |
| *b | Front view of DLC3 |
| 21.CHECK FOR SHORT IN CAN BUS WIRES (NO. 7 JUNCTION CONNECTOR - STEERING ANGLE SENSOR) |
- For vehicles without a vehicle stability control system, go to "Check for Short in CAN Bus Wires (No. 7 Junction Connector - Skid Control ECU)".
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| E74-4 (CANH) - E74-15 (CANL) | Ignition switch off | 200 Ω or higher |
| E74-4 (CANH) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E74-15 (CANL) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E74-4 (CANH) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
| E74-15 (CANL) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
Text in Illustration| *a | Rear view of wire harness connector
(to No. 7 Junction Connector) |
| *b | Front view of DLC3 |
| 22.CHECK FOR SHORT IN CAN BUS WIRES (NO. 7 JUNCTION CONNECTOR - SKID CONTROL ECU) |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| E74-5 (CANH) - E74-16 (CANL) | Ignition switch off | 200 Ω or higher |
| E74-5 (CANH) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E74-16 (CANL) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E74-5 (CANH) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
| E74-16 (CANL) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
Text in Illustration| *a | Rear view of wire harness connector
(to No. 7 Junction Connector) |
| *b | Front view of DLC3 |
| 23.CHECK FOR SHORT IN CAN BUS WIRES (NO. 7 JUNCTION CONNECTOR - NO. 1 CAN JUNCTION CONNECTOR) |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| E74-1 (CANH) - E74-12 (CANL) | Ignition switch off | 108 to 132 Ω |
| E74-1 (CANH) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E74-12 (CANL) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E74-1 (CANH) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
| E74-12 (CANL) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
Text in Illustration| *a | Rear view of wire harness connector
(to No. 7 Junction Connector) |
| *b | Front view of DLC3 |
Result| Result | Proceed to |
| OK | A |
| NG (w/ Active Height Control Suspension) | B |
| NG (w/o Active Height Control Suspension) | C |
| A | |
| |
| REPLACE NO. 7 JUNCTION CONNECTOR |
|
Reconnect the E74 No. 7 junction connector.
| 25.CHECK FOR SHORT IN CAN BUS WIRES (NO. 6 JUNCTION CONNECTOR - NO. 7 JUNCTION CONNECTOR) |
Disconnect the F73 No. 6 junction connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| F73-6 (CANH) - F73-17 (CANL) | Ignition switch off | 108 to 132 Ω |
| F73-6 (CANH) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| F73-17 (CANL) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| F73-6 (CANH) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
| F73-17 (CANL) - E22-16 (BAT) | Ignition 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 |
| | REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 6 JUNCTION CONNECTOR - NO. 7 JUNCTION CONNECTOR) |
|
|
| 26.CHECK FOR SHORT IN CAN BUS WIRES (NO. 6 JUNCTION CONNECTOR SIDE) |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| E31-13 (CA2H) - E31-12 (CA2L) | Ignition switch off | 108 to 132 Ω |
| E31-13 (CA2H) - E31-4 (GND) | Ignition switch off | 200 Ω or higher |
| E31-12 (CA2L) - E31-4 (GND) | Ignition switch off | 200 Ω or higher |
| E31-13 (CA2H) - E31-2 (BATT) | Ignition switch off | 6 kΩ or higher |
| E31-12 (CA2L) - E31-2 (BATT) | Ignition switch off | 6 kΩ or higher |
Text in Illustration| *a | Component with harness connected
(Network Gateway ECU) |
Result| Result | Proceed to |
| OK (w/o TOYOTA Parking Assist-sensor System and w/o Side Monitor System) | A |
| OK (w/ TOYOTA Parking Assist-sensor System and w/o Side Monitor System) | B |
| OK (w/ Side Monitor System) | C |
| NG | D |
| A | |
| |
| REPLACE NO. 6 JUNCTION CONNECTOR |
|
| 27.CHECK FOR SHORT IN CAN BUS WIRES (NO. 6 JUNCTION CONNECTOR - CLEARANCE WARNING ECU ASSEMBLY) |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| F73-5 (CANH) - F73-16 (CANL) | Ignition switch off | 200 Ω or higher |
| F73-5 (CANH) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| F73-16 (CANL) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| F73-5 (CANH) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
| F73-16 (CANL) - E22-16 (BAT) | Ignition 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 |
| OK | |
| |
| REPLACE NO. 6 JUNCTION CONNECTOR |
|
| 28.CHECK FOR SHORT IN CAN BUS WIRES (NO. 6 JUNCTION CONNECTOR - PARKING ASSIST ECU) |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| F73-5 (CANH) - F73-16 (CANL) | Ignition switch off | 200 Ω or higher |
| F73-5 (CANH) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| F73-16 (CANL) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| F73-5 (CANH) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
| F73-16 (CANL) - E22-16 (BAT) | Ignition 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 |
| OK | |
| |
| REPLACE NO. 6 JUNCTION CONNECTOR |
|
Reconnect the F73 No. 6 junction connector.
| 30.CHECK FOR SHORT IN CAN BUS WIRES (NO. 5 JUNCTION CONNECTOR - NO. 6 JUNCTION CONNECTOR) |
Disconnect the E68 No. 5 junction connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| E68-2 (CANH) - E68-13 (CANL) | Ignition switch off | 108 to 132 Ω |
| E68-2 (CANH) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E68-13 (CANL) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E68-2 (CANH) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
| E68-13 (CANL) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
Text in Illustration| *a | Rear view of wire harness connector
(to No. 5 Junction Connector) |
| *b | Front view of DLC3 |
| | REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 5 JUNCTION CONNECTOR - NO. 6 JUNCTION CONNECTOR) |
|
|
| 31.CHECK FOR SHORT IN CAN BUS WIRES (NO. 5 JUNCTION CONNECTOR SIDE) |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| E31-13 (CA2H) - E31-12 (CA2L) | Ignition switch off | 108 to 132 Ω |
| E31-13 (CA2H) - E31-4 (GND) | Ignition switch off | 200 Ω or higher |
| E31-12 (CA2L) - E31-4 (GND) | Ignition switch off | 200 Ω or higher |
| E31-13 (CA2H) - E31-2 (BATT) | Ignition switch off | 6 kΩ or higher |
| E31-12 (CA2L) - E31-2 (BATT) | Ignition switch off | 6 kΩ or higher |
Text in Illustration| *a | Component with harness connected
(Network Gateway ECU) |
| 32.CHECK FOR SHORT IN CAN BUS WIRES (NO. 5 JUNCTION CONNECTOR - DISTANCE CONTROL ECU ASSEMBLY) |
- For vehicles without a dynamic radar cruise control system, go to "Check for Short in CAN Bus Wires (No. 5 Junction Connector - Seat Belt Control ECU)".
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| E68-4 (CANH) - E68-15 (CANL) | Ignition switch off | 200 Ω or higher |
| E68-4 (CANH) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E68-15 (CANL) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E68-4 (CANH) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
| E68-15 (CANL) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
Text in Illustration| *a | Rear view of wire harness connector
(to No. 5 Junction Connector) |
| *b | Front view of DLC3 |
| 33.CHECK FOR SHORT IN CAN BUS WIRES (NO. 5 JUNCTION CONNECTOR - SEAT BELT CONTROL ECU) |
- For vehicles without a pre-crash safety system, go to "Check for Short in CAN Bus Wires (No. 5 Junction Connector - Yaw Rate Sensor Assembly)".
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| E68-5 (CANH) - E68-16 (CANL) | Ignition switch off | 200 Ω or higher |
| E68-5 (CANH) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E68-16 (CANL) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E68-5 (CANH) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
| E68-16 (CANL) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
Text in Illustration| *a | Rear view of wire harness connector
(to No. 5 Junction Connector) |
| *b | Front view of DLC3 |
| 34.CHECK FOR SHORT IN CAN BUS WIRES (NO. 5 JUNCTION CONNECTOR - YAW RATE SENSOR ASSEMBLY) |
- For vehicles without a vehicle stability control system, replace No. 5 junction connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| E68-3 (CANH) - E68-14 (CANL) | Ignition switch off | 200 Ω or higher |
| E68-3 (CANH) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E68-14 (CANL) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E68-3 (CANH) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
| E68-14 (CANL) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
Text in Illustration| *a | Rear view of wire harness connector
(to No. 5 Junction Connector) |
| *b | Front view of DLC3 |
| OK | |
| |
| REPLACE NO. 5 JUNCTION CONNECTOR |
|
Reconnect the E68 No. 5 junction connector.
| 36.CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - NO. 5 JUNCTION CONNECTOR) |
Disconnect the E71 No. 4 junction connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| E71-1 (CANH) - E71-12 (CANL) | Ignition switch off | 108 to 132 Ω |
| E71-1 (CANH) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E71-12 (CANL) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E71-1 (CANH) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
| E71-12 (CANL) - E22-16 (BAT) | Ignition 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 |
Result| Result | Proceed to |
| OK (for 1VD-FTV with DPF) | A |
| OK (except 1VD-FTV with DPF) | B |
| NG | C |
| |
|
| | REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 4 JUNCTION CONNECTOR - NO. 5 JUNCTION CONNECTOR) |
|
|
| 37.CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - POWER STEERING ECU ASSEMBLY) |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| E71-4 (CANH) - E71-15 (CANL) | Ignition switch off | 200 Ω or higher |
| E71-4 (CANH) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E71-15 (CANL) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E71-4 (CANH) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
| E71-15 (CANL) - E22-16 (BAT) | Ignition 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 |
| 38.CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - 4WD CONTROL ECU) |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| E71-3 (CANH) - E71-14 (CANL) | Ignition switch off | 200 Ω or higher |
| E71-3 (CANH) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E71-14 (CANL) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E71-3 (CANH) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
| E71-14 (CANL) - E22-16 (BAT) | Ignition 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 |
| 39.CHECK FOR SHORT IN CAN BUS WIRES (NO. 4 JUNCTION CONNECTOR - NETWORK GATEWAY ECU) |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| E71-2 (CANH) - E71-13 (CANL) | Ignition switch off | 108 to 132 Ω |
| E71-2 (CANH) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E71-13 (CANL) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E71-2 (CANH) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
| E71-13 (CANL) - E22-16 (BAT) | Ignition 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 |
| OK | |
| |
| REPLACE NO. 4 JUNCTION CONNECTOR |
|
Reconnect the E74 No. 7 junction connector.
| 41.CHECK FOR SHORT IN CAN BUS WIRES (STEERING CONTROL ECU) |
Disconnect the E79 steering control ECU connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| E79-9 (CANH) - E79-20 (CANL) | Ignition switch off | 54 to 69 Ω |
| E79-9 (CANH) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E79-20 (CANL) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E79-9 (CANH) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
| E79-20 (CANL) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
Text in Illustration| *a | Rear view of wire harness connector
(to Steering Control ECU) |
| *b | Front view of DLC3 |
| | REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO STEERING CONTROL ECU (CANH, CANL) |
|
|
| OK | |
| |
| REPLACE STEERING CONTROL ECU ()
|
|
Reconnect the E74 No. 7 junction connector.
| 43.CHECK FOR SHORT IN CAN BUS WIRES (STEERING ANGLE SENSOR) |
Disconnect the E11 steering angle sensor connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| E11-10 (CANH) - E11-9 (CANL) | Ignition switch off | 54 to 69 Ω |
| E11-10 (CANH) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E11-9 (CANL) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E11-10 (CANH) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
| E11-9 (CANL) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
Text in Illustration| *a | Front view of wire harness connector
(to Steering Angle Sensor) |
| *b | Front view of DLC3 |
| | REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO STEERING ANGLE SENSOR (CANH, CANL) |
|
|
| OK | |
| |
| REPLACE STEERING ANGLE SENSOR ()
|
|
Reconnect the E74 No. 7 junction connector.
| 45.CHECK FOR SHORT IN CAN BUS WIRES (SKID CONTROL ECU) |
Disconnect the A24 master cylinder solenoid (skid control ECU) connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| A24-11 (CANH) - A24-25 (CANL) | Ignition switch off | 54 to 69 Ω |
| A24-11 (CANH) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| A24-25 (CANL) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| A24-11 (CANH) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
| A24-25 (CANL) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
Text in Illustration| *a | Front view of wire harness connector
(to Master Cylinder Solenoid [Skid Control ECU]) |
| *b | Front view of DLC3 |
| | REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO SKID CONTROL ECU (CANH, CANL) |
|
|
| OK | |
| |
| REPLACE MASTER CYLINDER SOLENOID (SKID CONTROL ECU) ()
|
|
Reconnect the E74 No. 7 junction connector.
| 47.CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 CAN JUNCTION CONNECTOR - SUSPENSION CONTROL ECU) |
Disconnect the K39 No. 1 CAN junction connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| K39-1 (CANH) - K39-2 (CANL) | Ignition switch off | 200 Ω or higher |
| K39-1 (CANH) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| K39-2 (CANL) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| K39-1 (CANH) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
| K39-2 (CANL) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
Text in Illustration| *a | Rear view of wire harness connector
(to No. 1 CAN Junction Connector) |
| *b | Front view of DLC3 |
| 48.CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 CAN JUNCTION CONNECTOR) |
Disconnect the K29 No. 1 CAN junction connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| K29-1 (CANH) - K29-2 (CANL) | Ignition switch off | 108 to 132 Ω |
| K29-1 (CANH) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| K29-2 (CANL) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| K29-1 (CANH) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
| K29-2 (CANL) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
Text in Illustration| *a | Rear view of wire harness connector
(to No. 1 CAN Junction Connector) |
| *b | Front view of DLC3 |
| | REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 1 CAN JUNCTION CONNECTOR - NO. 7 JUNCTION CONNECTOR) |
|
|
| OK | |
| |
| REPLACE NO. 1 CAN JUNCTION CONNECTOR |
|
Reconnect the K39 No. 1 CAN junction connector.
| 50.CHECK FOR SHORT IN CAN BUS WIRES (SUSPENSION CONTROL ECU) |
Disconnect the K34 suspension control ECU connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| K34-7 (CANH) - K34-8 (CANL) | Ignition switch off | 54 to 69 Ω |
| K34-7 (CANH) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| K34-8 (CANL) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| K34-7 (CANH) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
| K34-8 (CANL) - E22-16 (BAT) | Ignition 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 |
| | REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO SUSPENSION CONTROL ECU (CANH, CANL) |
|
|
| OK | |
| |
| REPLACE SUSPENSION CONTROL ECU ()
|
|
Reconnect the E74 No. 7 junction connector.
| 52.CHECK FOR SHORT IN CAN BUS WIRES (NO. 1 CAN JUNCTION CONNECTOR) |
Disconnect the K29 No. 1 CAN junction connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| K29-1 (CANH) - K29-2 (CANL) | Ignition switch off | 108 to 132 Ω |
| K29-1 (CANH) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| K29-2 (CANL) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| K29-1 (CANH) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
| K29-2 (CANL) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
Text in Illustration| *a | Rear view of wire harness connector
(to No. 1 CAN Junction Connector) |
| *b | Front view of DLC3 |
| | REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (NO. 1 CAN JUNCTION CONNECTOR - NO. 7 JUNCTION CONNECTOR) |
|
|
| OK | |
| |
| REPLACE NO. 1 CAN JUNCTION CONNECTOR |
|
Reconnect the F73 No. 6 junction connector.
| 54.CHECK FOR SHORT IN CAN BUS WIRES (CLEARANCE WARNING ECU ASSEMBLY) |
Disconnect the F12 clearance warning ECU assembly connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| F12-3 (CANH) - F12-5 (CANL) | Ignition switch off | 54 to 69 Ω |
| F12-3 (CANH) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| F12-5 (CANL) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| F12-3 (CANH) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
| F12-5 (CANL) - E22-16 (BAT) | Ignition 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 |
| | REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO CLEARANCE WARNING ECU ASSEMBLY (CANH, CANL) |
|
|
| OK | |
| |
| REPLACE CLEARANCE WARNING ECU ASSEMBLY ()
|
|
Reconnect the F73 No. 6 junction connector.
| 56.CHECK FOR SHORT IN CAN BUS WIRES (PARKING ASSIST ECU) |
Disconnect the F76 parking assist ECU connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| F76-40 (CANH) - F76-39 (CANL) | Ignition switch off | 54 to 69 Ω |
| F76-40 (CANH) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| F76-39 (CANL) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| F76-40 (CANH) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
| F76-39 (CANL) - E22-16 (BAT) | Ignition 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 |
| | REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO PARKING ASSIST ECU (CANH, CANL) |
|
|
| OK | |
| |
| REPLACE PARKING ASSIST ECU ()
|
|
Reconnect the E68 No. 5 junction connector.
| 58.CHECK FOR SHORT IN CAN BUS WIRES (DISTANCE CONTROL ECU ASSEMBLY) |
Disconnect the E108 distance control ECU assembly connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| E108-8 (CANH) - E108-9 (CANL) | Ignition switch off | 54 to 69 Ω |
| E108-8 (CANH) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E108-9 (CANL) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E108-8 (CANH) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
| E108-9 (CANL) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
Text in Illustration| *a | Rear view of wire harness connector
(to Distance Control ECU Assembly) |
| *b | Front view of DLC3 |
| | REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO DISTANCE CONTROL ECU ASSEMBLY (CANH, CANL) |
|
|
| OK | |
| |
| REPLACE DISTANCE CONTROL ECU ASSEMBLY ()
|
|
Reconnect the E68 No. 5 junction connector.
| 60.CHECK FOR SHORT IN CAN BUS WIRES (SEAT BELT CONTROL ECU) |
Disconnect the E42 seat belt control ECU connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| E42-1 (CANH) - E42-2 (CANL) | Ignition switch off | 54 to 69 Ω |
| E42-1 (CANH) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E42-2 (CANL) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E42-1 (CANH) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
| E42-2 (CANL) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
Text in Illustration| *a | Front view of wire harness connector
(to Seat Belt Control ECU) |
| *b | Front view of DLC3 |
| | REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO SEAT BELT CONTROL ECU (CANH, CANL) |
|
|
| OK | |
| |
| REPLACE SEAT BELT CONTROL ECU ()
|
|
Reconnect the E68 No. 5 junction connector.
| 62.CHECK FOR SHORT IN CAN BUS WIRES (YAW RATE SENSOR ASSEMBLY) |
Disconnect the E50 yaw rate sensor assembly connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| E50-3 (CANH) - E50-2 (CANL) | Ignition switch off | 54 to 69 Ω |
| E50-3 (CANH) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E50-2 (CANL) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E50-3 (CANH) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
| E50-2 (CANL) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
Text in Illustration| *a | Front view of wire harness connector
(to Yaw Rate Sensor Assembly) |
| *b | Front view of DLC3 |
| | REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO YAW RATE SENSOR ASSEMBLY (CANH, CANL) |
|
|
| OK | |
| |
| REPLACE YAW RATE SENSOR ASSEMBLY ()
|
|
Reconnect the E71 No. 4 junction connector.
| 64.CHECK FOR SHORT IN CAN BUS WIRES (POWER STEERING ECU ASSEMBLY) |
Disconnect the E102 power steering ECU assembly connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| E102-1 (CANH) - E102-2 (CANL) | Ignition switch off | 54 to 69 Ω |
| E102-1 (CANH) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E102-2 (CANL) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E102-1 (CANH) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
| E102-2 (CANL) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
Text in Illustration| *a | Front view of wire harness connector
(to Power Steering ECU Assembly) |
| *b | Front view of DLC3 |
| | REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO POWER STEERING ECU ASSEMBLY (CANH, CANL) |
|
|
| OK | |
| |
| REPLACE POWER STEERING ECU ASSEMBLY ()
|
|
Reconnect the E71 No. 4 junction connector.
| 66.CHECK FOR SHORT IN CAN BUS WIRES (4WD CONTROL ECU) |
Disconnect the A27 4WD control ECU connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| A27-19 (CAN+) - A27-20 (CAN-) | Ignition switch off | 54 to 69 Ω |
| A27-19 (CAN+) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| A27-20 (CAN-) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| A27-19 (CAN+) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
| A27-20 (CAN-) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
Text in Illustration| *a | Front view of wire harness connector
(to 4WD Control ECU) |
| *b | Front view of DLC3 |
| | REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO 4WD CONTROL ECU (CAN+, CAN-) |
|
|
| OK | |
| |
| REPLACE 4WD CONTROL ECU ()
|
|
Reconnect the E71 No. 4 junction connector.
| 68.CHECK FOR SHORT IN CAN BUS WIRES (NETWORK GATEWAY ECU) |
Disconnect the E31 network gateway ECU connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| E31-13 (CA2H) - E31-12 (CA2L) | Ignition switch off | 108 to 132 Ω |
| E31-13 (CA2H) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E31-12 (CA2L) - E22-4 (CG) | Ignition switch off | 200 Ω or higher |
| E31-13 (CA2H) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
| E31-12 (CA2L) - E22-16 (BAT) | Ignition switch off | 6 kΩ or higher |
Text in Illustration| *a | Rear view of wire harness connector
(to Network Gateway ECU) |
| *b | Front view of DLC3 |
| | REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO NETWORK GATEWAY ECU (CA2H, CA2L) |
|
|
| OK | |
| |
| REPLACE NETWORK GATEWAY ECU ()
|
|
| 69.CHECK HARNESS AND CONNECTOR (NETWORK GATEWAY ECU - BATTERY AND BODY GROUND) |
Connect the cable to the negative (-) battery terminal.
- When disconnecting the cable, some systems need to be initialized after the cable is reconnected ().
Disconnect the E31 network gateway ECU connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| E31-4 (GND) - Body ground | Ignition switch off | Below 1 Ω |
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
| Tester Connection | Condition | Specified Condition |
| E31-2 (BATT) - Body ground | Always | 11 to 14 V |
| E31-9 (IG2) - Body ground | Ignition switch ON | 11 to 14 V |
| E31-10 (IG1) - Body ground | Ignition switch ON | 11 to 14 V |
Text in Illustration| *a | Rear view of wire harness connector
(to Network Gateway ECU) |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
| OK | |
| |
| REPLACE NETWORK GATEWAY ECU ()
|
|
