DTC No.5 [WL-C, WE-C (AT)]

id0302a3802100

DTC No.5

Solenoid valve malfunction
DETECTION CONDITION
•  Open circuit or short to ground has been detected in the solenoid valve wiring harness.
POSSIBLE CAUSE
•  Open circuit or short to ground in the wiring harness between the 4x4 CM terminal V and the lock solenoid valve terminal B
•  Open circuit or short to ground in the wiring harness between the 4x4 CM terminal V and the 4x4 relay terminal E
•  Open circuit or short to ground in the wiring harness between the free solenoid valve terminal B and the 4x4 relay terminal B
•  Open circuit in the wiring harness between the lock solenoid valve terminal A and ground
•  Open circuit in the wiring harness between the 4x4 relay terminal A, D and ground
•  Open circuit in the wiring harness between the free solenoid valve terminal A and battery
•  lock solenoid malfunction
•  Poor connection at connector (female terminal)

Diagnostic procedure

STEP

INSPECTION

ACTION
1
INSPECT SOLENOID VALVE WIRING HARNESS FOR SHORT TO GROUND
•  Turn the engine switch off.
•  Disconnect the 4x4 CM connector.
•  Disconnect the lock solenoid connector.
•  Disconnect the 4x4 relay connector.
•  Inspect for continuity between the 4x4 CM connector terminal V (vehicle harness-side) and body ground.
•  Inspect for continuity between the 4x4 relay connector terminal B (vehicle harness-side) and body ground.
•  Is there continuity?
Yes
Repair or replace the wiring harness, then go to step 6.
No
Go to the next step.
2
INSPECT SOLENOID VALVE WIRING HARNESS FOR OPEN CIRCUIT
•  Inspect for continuity between the 4x4 CM connector terminal V (vehicle harness-side) and the vehicle harness-side terminal B of lock solenoid.
•  Inspect for continuity between the 4x4 CM connector terminal V (vehicle harness-side) and the vehicle harness-side terminal E of 4x4 relay.
•  Inspect for continuity between the lock solenoid connector terminal A (vehicle harness-side) and body ground.
•  Inspect for continuity between the 4x4 relay connector terminals A, D (vehicle harness-side) and body ground.
•  Inspect for continuity between the free solenoid connector terminal B (vehicle harness-side) and the vehicle harness-side terminal B of 4x4 relay.
•  Is there continuity?
Yes
Go to the next step.
No
Repair or replace the wiring harness, then go to step 6.
3
MEASURE VOLTAGE BETWEEN FREE SOLENOID VALVE CONNECTOR TERMINAL A AND GROUND
•  Is the voltage greater than 10 V?
Yes
Go to the next step.
No
Repair or replace the wiring harness, then go to step 6.
4
INSPECT SOLENOID VALVE
•  Inspect the lock and free solenoid valves.
•  Is the lock and free solenoid valves normal?
Yes
Go to the next step.
No
Replace the solenoid valve, then go to the step 6.
5
INSPECT 4x4 RELAY
•  Inspect the 4x4 relay.
•  Is the 4x4 relay normal?
Yes
Go to the next step.
No
Replace the 4x4 relay, then go to the next step.
6
VERIFY THAT THE SAME DTC IS NOT PRESENT
•  Reconnect all disconnected connectors.
•  Clear the DTCs from the memory.
•  Change the current transfer mode by operating the 4x4 switch.(2H-4H)
•  Are any DTCs present?
Yes
Repeat the inspection from step 1.
If the malfunction recurs, replace the 4x4 CM, then go to the next step.
(See 4x4 CONTROL MODULE REMOVAL/INSTALLATION [AT].)
No
Go to the next step.
7
VERIFY THAT NO OTHER DTCS ARE PRESENT
•  Are any DTCs present?
Yes
Go to the applicable DTC troubleshooting.
(See 4x4 CONTROL SYSTEM ON-BOARD DIAGNOSIS [WL-C, WE-C (AT)].)
No
Troubleshooting completed.