Diagnosis Procedure
- CHECK TRANSFER FLUID TEMPERATURE SENSOR SIGNAL (1)
- Turn the ignition switch OFF.
- Disconnect AWD solenoid harness connector.
- Turn the ignition switch ON.
- Check the voltage between AWD solenoid harness connector terminals.
AWD solenoid
Voltage
(Approx.)
Connector
Terminal
F57
6
7
2.5 V
Is the inspection result normal?
YES
GO TO 2.
NO
GO TO 3.
- CHECK TRANSFER FLUID TEMPERATURE SENSOR
Check Transfer Fluid Temperature Sensor. Refer to Component Inspection .
Is the inspection result normal?
YES
GO TO 6.
NO
AWD solenoid is malfunctioning. Replace Electric Controlled Coupling. Refer to Exploded View .
- CHECK TRANSFER FLUID TEMPERATURE SENSOR SIGNAL (2)
Check the voltage between AWD solenoid harness connector and ground.
AWD solenoid
--
Voltage
(Approx.)
Connector
Terminal
F57
6
Ground
2.5 V
Is the inspection result normal?
YES
GO TO 4.
NO
GO TO 5.
- CHECK AWD CONTROL UNIT GROUND
- Turn the ignition switch OFF.
- Disconnect AWD Control Unit harness connector.
- Check the continuity between AWD Control Unit harness connector and ground.
AWD Control Unit
--
Continuity
Connector
Terminal
B17
10
Ground
Existed
11
Is the inspection result normal?
YES
GO TO 5.
NO
Repair or replace error-detected parts.
- CHECK TRANSFER FLUID TEMPERATURE SENSOR CIRCUIT
- Turn the ignition switch OFF.
- Disconnect AWD Control Unit harness connector.
- Check the continuity between AWD Control Unit harness connector and AWD solenoid harness connector.
AWD Control Unit
AWD solenoid
Continuity
Connector
Terminal
Connector
Terminal
B17
13
F57
6
Existed
3
7
- Check the continuity between AWD Control Unit harness connector and the ground.
AWD Control Unit
--
Continuity
Connector
Terminal
B17
13
Ground
Not existed
3
Is the inspection result normal?
YES
GO TO 2.
NO
Repair or replace error-detected parts.
- CHECK TERMINALS AND HARNESS CONNECTORS
- Check AWD Control Unit pin terminals for damage or loose connection with harness connector.
- Check Transfer Fluid Temperature Sensor pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES
Replace AWD Control Unit. Refer to Removal and Installation .
NO
Repair or replace error-detected parts.