P180F

P180F TRANSFER INTERNAL SPEED SENSOR





DTC Logic

DTC DETECTION LOGIC






DTC CONFIRMATION PROCEDURE
1.DTC REPRODUCTION PROCEDURE
With CONSULT-III
1. Turn the ignition switch OFF to ON.
2. Turn the 4WD shift switch AUTO right arrow 4H right arrow 4LO right arrow 4H right arrow AUTO.
3. Perform self-diagnosis for "ALL MODE AWD/4WD".
Is DTC "P180F" detected?
YES - Proceed to diagnosis procedure. SEE Diagnosis Procedure.
NO - INSPECTION END




Diagnosis Procedure
1.CHECK TRANSFER INTERNAL SPEED SENSOR SIGNAL
1. Turn the ignition switch ON.
2. Check the voltage between transfer control unit harness connector and ground.






Is the inspection result normal?
YES - GO TO 6.
NO - GO TO 2.
2.CHECK TRANSFER INTERNAL SPEED SENSOR POWER SUPPLY
1. Turn the ignition switch OFF.
2. Disconnect transfer control actuator harness connector.
3. Turn the ignition switch ON.
4. Check the voltage between transfer control actuator harness connector terminals.





Is the inspection result normal?
YES - GO TO 4.
NO - GO TO 3.
3.CHECK TRANSFER INTERNAL SPEED SENSOR POWER SUPPLY 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 6.
NO - Repair or replace error-detected parts.
4.CHECK TRANSFER INTERNAL SPEED SENSOR SIGNAL 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 5.
NO - Repair or replace error-detected parts.
5.REPLACE TRANSFER CONTROL ACTUATOR
1. Replace transfer control actuator. Removal And Installation.
2. Perform confirmation procedure again. P180D.
Is DTC "P180F" detected?
YES - GO TO 6.
NO - INSPECTION END
6.CHECK TRANSFER INTERNAL FUNCTION
With CONSULT-III
1. Remove transfer control actuator. Removal And Installation.
2. Turn the actuator shaft. Inspection.
3. Check "ROTARY POSI SEN" of CONSULT-III "DATA MONITOR" for "ALL MODE AWD/4WD".





Is the inspection result normal?
YES - GO TO 7.
NO - Transfer assembly is mechanical malfunction. Replace transfer assembly. Exploded View Removal And Installation, "Removal and Installation".
7.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.