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 the low tire pressure warning 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 low tire pressure warning control unit.
- Check the resistance between the low tire pressure warning control unit harness connector terminals.
Low tire pressure warning control unit harness connector
Resistance (Ω)
Connector No.
Terminal No.
M123
2
1
Approx. 54 - 66
Is the measurement value within the specification?
YES
GO TO STEP 3 .
NO
Repair the low tire pressure warning control unit.
- CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the low tire pressure warning control unit. Refer to Diagnosis Procedure .
Is the inspection result normal?
YES
Replace the low tire pressure warning control unit. Refer to Removal and Installation .
YES
Error was detected in the low tire pressure warning control unit branch line.
NO
Repair the power supply and the ground circuit.