Diagnosis Procedure
WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
Regarding Wiring Diagram information, refer to WIRING DIAGRAM .
- CHECK PUSH-BUTTON IGNITION SWITCH ILLUMINATION OPERATION
CONSULT
- Turn the ignition switch ON.
- Select ENGINE SW ILLUMI of BCM (INTELLIGENT KEY) active test item.
- While operating the test item, check voltage between push-button ignition switch connector M17 terminal 5 and ground.
Terminals Test item Voltage
(Approx.)(+) (-) Push-button ignition switch Ground ENGINE SW ILLUMI Connector Terminal M17 5 ON 5 V OFF 0 V Is the inspection result normal?
YES
GO TO STEP 4
NO
GO TO STEP 2
- CHECK PUSH-BUTTON IGNITION SWITCH ILLUMINATION POWER SUPPLY OPEN CIRCUIT
- Turn the ignition switch OFF.
- Disconnect BCM harness connector M19 and the push-button ignition switch harness connector M17.
- Check continuity between BCM harness connector M19 terminal 48 and the push-button ignition switch harness connector M17 terminal 5.
BCM Push-button ignition switch Continuity Connector Terminal Connector Terminal M19 48 M17 5 Yes Is the inspection result normal?
YES
GO TO STEP 3
NO
Repair or replace harness or connectors.
- CHECK PUSH-BUTTON IGNITION SWITCH ILLUMINATION POWER SUPPLY SHORT CIRCUIT
Check continuity between BCM harness connector M19 terminal 48 and ground.
BCM Ground Continuity Connector Terminal M19 48 No Is the inspection result normal?
YES
Replace BCM. Refer to REMOVAL AND INSTALLATION .
NO
Repair or replace harness or connectors.
- CHECK PUSH-BUTTON IGNITION SWITCH ILLUMINATION GROUND CIRCUIT
- Turn the ignition switch OFF.
- Disconnect push-button ignition switch harness connector M17.
- Check continuity between push-button ignition switch harness connector M17 terminal 6 and ground.
Push-button ignition switch Ground Continuity Connector Terminal M17 6 Yes
Is the inspection result normal?
YES
Replace push-button ignition switch. Refer to REMOVAL AND INSTALLATION .
NO
GO TO STEP 5
- CHECK PUSH-BUTTON IGNITION SWITCH ILLUMINATION GROUND OPEN CIRCUIT
- Disconnect BCM harness connector M80.
- Check continuity between BCM harness connector M80 terminal 107 and push-button ignition switch harness connector M17 terminal 6.
Push-button ignition switch BCM Continuity Connector Terminal Connector Terminal M17 6 M80 107 Yes
Is the inspection result normal?
YES
Replace BCM. Refer to REMOVAL AND INSTALLATION .
NO
Repair or replace harness or connectors.