P181A

P181A TRANSFER MOTOR TEMPERATURE SENSOR





DTC Logic

DTC DETECTION LOGIC






DTC CONFIRMATION PROCEDURE
1.DTC REPRODUCTION PROCEDURE
With CONSULT-III
1. Start the engine and drive at 40 km/h (25 MPH) or more for approximately 1minute.
2. Perform self-diagnosis for "ALL MODE AWD/4WD".
Is DTC "P181A" detected?
YES - Proceed to diagnosis procedure. SEE Diagnosis Procedure.
NO - INSPECTION END




Diagnosis Procedure
1.CHECK TRANSFER MOTOR TEMPERATURE SENSOR POWER SUPPLY
1. Turn the ignition switch OFF.
2. Disconnect transfer control actuator harness connector.
3. Turn the ignition switch ON.

CAUTION:
Never start the engine.
4. Check the voltage between transfer control actuator harness connector terminals.





Is the inspection result normal?
YES - GO TO 3.
NO - GO TO 2.
2.CHECK TRANSFER MOTOR TEMPERATURE SENSOR CIRCUIT
1. Turn the ignition switch OFF.
2. Disconnect transfer control unit harness connector.
3. Check the continuity between transfer control unit harness connector and transfer control actuator harness connector.





4. Check the continuity between transfer control actuator harness connector and ground.





Is the inspection result normal?
YES - GO TO 4.
NO - Repair or replace error-detected parts.
3.CHECK TRANSFER MOTOR TEMPERATURE SENSOR
Check the transfer control actuator. SEE Component Inspection.
Is the inspection result normal?
YES - GO TO 4.
NO - Transfer motor temperature sensor is malfunctioning. Replace transfer control actuator. Exploded View.
4.CHECK TERMINALS AND HARNESS CONNECTORS
Check the pin terminals for damage or loose connection with each harness connector.
Is the inspection result normal?
YES - Replace transfer control unit. Service and Repair.
NO - Repair or replace error-detected parts.




Component Inspection
1.CHECK TRANSFER MOTOR TEMPERATURE SENSOR
1. Turn the ignition switch OFF.
2. Disconnect transfer control actuator harness connector.
3. Check the resistance between transfer control actuator harness connector terminals.





Is the inspection result normal?
YES - INSPECTION END
NO - Transfer motor temperature sensor is malfunctioning. Replace transfer control actuator. Exploded View.