Diagnosis Procedure
WARNING: This page is about a different car, the 2018 Nissan Maxima. 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 ECM for damage, bend and loose connection (unit side and connector side).
Is the inspection result normal?
YES
GO TO 2 .
NO
Repair the terminal and connector.
- CHECK HARNESS FOR OPEN CIRCUIT
- Disconnect the connector of ECM.
- Check the resistance between the ECM harness connector terminals.
ECM harness connector
Resistance (Ω)
Connector No.
Terminal No.
E10
124
123
Approx. 108 - 132
Is the measurement value within the specification?
YES
GO TO 3 .
NO
Repair the ECM branch line.
- CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the ECM. Refer to Diagnosis Procedure .
Is the inspection result normal?
YES
Replace the ECM. Refer to Removal and Installation .
YES
Error was detected in the ECM branch line.
NO
Repair the power supply and the ground circuit.