Diagnosis Procedure
WARNING: This page is about a different car, the 2018 Nissan Titan XD and 2018 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK CONNECTOR
- Turn the ignition switch OFF.
- Disconnect the battery cable from the negative terminal.
- Check the terminals and connectors of transfer control unit for damage, bend and loose connection (unit side and connector side).
Is the inspection result normal?
YES
GO TO STEP 2 .
NO
Repair the terminal and connector.
- CHECK HARNESS FOR OPEN CIRCUIT
- Disconnect the connector of transfer control unit.
- Check the resistance between the transfer control unit harness connector terminals.
Transfer control unit harness connector
Resistance (Ω)
Connector No.
Terminal No.
E142
13
14
Approx. 54 - 66
Is the measurement value within the specification?
YES
GO TO STEP 3 .
NO
Repair the transfer control unit branch line.
- CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the transfer control unit. Refer to Diagnosis Procedure .
Is the inspection result normal?
YES
Replace the transfer control unit. Refer to Removal and Installation .
YES
Error was detected in the transfer control unit branch line.
NO
Repair the power supply and the ground circuit.