1.CHECK CONNECTOR

1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side).

- ECM
- Harness connector M117
- Harness connector B201

Is the inspection result normal?
YES>>GO TO 2.
NO>>Repair the terminal and connector.
2.CHECK HARNESS FOR OPEN CIRCUIT

1. Disconnect the connector of ECM.
2. Check the resistance between the ECM harness connector terminals.

   ECM harness connector | Resistance (Ω)
   Connector No. | Terminal No.
   M107 | 101 | 97 | Approx. 108 – 132

Is the measurement value within the specification?
YES>>GO TO 3.
NO>>Repair the ECM branch line.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the ECM. Refer to Diagnosis Procedure (GT-R certified NISSAN dealer).
Is the inspection result normal?
YES (Present error)>>Replace the ECM. Refer to Special Repair Requirement (GT-R certified NISSAN dealer).
YES (Past error)>>Error was detected in the ECM branch line.
NO>>Repair the power supply and the ground circuit.