DTC Diagnosis Procedure
- CHECK TRANSFER MOTOR TEMPERATURE SENSOR POWER SUPPLY
- Turn the ignition switch OFF.
- Disconnect transfer control actuator harness connector.
- Turn the ignition switch ON.CAUTION: Never start the engine.
- Check the voltage between transfer control actuator harness connector terminals.
+
-
Voltage
Transfer control actuator
Connector
Terminal
F52
4
7
Approx. 5 V
Is the inspection result normal?
YES
GO TO 3.
NO
GO TO 2.
- CHECK TRANSFER MOTOR TEMPERATURE SENSOR CIRCUIT
- Turn the ignition switch OFF.
- Disconnect transfer control unit harness connector.
- Check the continuity between transfer control unit harness connector and transfer control actuator harness connector.
Transfer control unit
Transfer control actuator
Continuity
Connector
Terminal
Connector
Terminal
E59
28
F52
4
Existed
9
7
- Check the continuity between transfer control actuator harness connector and ground.
Transfer control actuator
--
Continuity
Connector
Terminal
F52
7
Ground
Not existed
Is the inspection result normal?
YES
GO TO 4.
NO
Repair or replace error-detected parts.
- CHECK TRANSFER MOTOR TEMPERATURE SENSOR
Check the transfer control actuator. Refer to Component Inspection .
Is the inspection result normal?
YES
GO TO 4.
NO
Transfer motor temperature sensor is malfunctioning. Replace transfer control actuator. Refer to TRANSFER CONTROL ACTUATOR : Removal & Installation .
- 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. Refer to TRANSFER CONTROL UNIT : Removal & Installation .
NO
Repair or replace error-detected parts.