P180F

P180F TRANSFER INTERNAL SPEED SENSOR

DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PRECONDITIONING

If "DTC CONFIRMATION PROCEDURE" has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.
- GO TO 2.

2. DTC REPRODUCTION PROCEDURE

With CONSULT
1.Turn the ignition switch OFF to ON.
2.Turn the 4WD shift switch AUTO to 4H to 4L to 4H to AUTO.
3.Perform self-diagnosis for "ALL MODE AWD/4WD".
Is DTC "P180F" detected?
YES- Proceed to diagnosis procedure. Refer to "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. Refer to "Removal and Installation" Removal and Installation.
2.Perform confirmation procedure again. Refer to "DTC Logic" P180D.
Is DTC "P180F" detected?
YES- GO TO 6.
NO- INSPECTION END

6. CHECK TRANSFER INTERNAL FUNCTION

With CONSULT
1.Remove transfer control actuator. Refer to "Removal and Installation" Removal and Installation.
2.Turn the actuator shaft. Refer to "Inspection" Inspection.
3.Check "ROTARY POSI SEN" of CONSULT "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. Refer to "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. Refer to "Removal and Installation" Service and Repair.
NO- Repair or replace error-detected parts.