Diagnosis Procedure
WARNING: This page is about a different car, the 2013 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.
Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".
- CHECK EXHAUST VALVE SOLENOID SIGNAL
CONSULT
- Connect suspension control unit connector B3.
- Turn ignition switch ON.
- Select "EXHAUST SOLENOID" of AIR LEVELIZER active test items.
- While test item is operating, check signal between suspension air compressor connector C9 terminal 2 and ground.
(+) (-) Voltage Connector Terminal C9 2 Ground Battery voltage Courtesy of NISSAN NORTH AMERICA, INC.
Is battery voltage present?
YES: GO TO 2.
NO: GO TO 2.
- CHECK CONTINUITY OF EXHAUST VALVE SOLENOID CIRCUIT
- Turn ignition switch OFF.
- Disconnect suspension control unit connector B3 and suspension air compressor connector C9.
- Check continuity between suspension control unit connector B3 (A) terminal 9 and suspension air compressor connector C9 (B) terminal 2.
A B Continuity Connector Terminal Connector Terminal B3 9 C9 2 Yes - Check continuity between suspension control unit connector B3 (A) terminal 9 and ground.
A - Continuity Connector Terminal B3 9 Ground No Are the continuity test results as specified?
YES: Replace the suspension control unit. Refer to "REMOVAL AND INSTALLATION ".
NO: Repair harness or connector.
- CHECK SUSPENSION AIR COMPRESSOR GROUND
- Turn ignition switch OFF.
- Check continuity between suspension air compressor connector C9 terminals 1 and 3 and ground.
Connector Terminal - Continuity C9 1 Ground Yes 3 Is continuity present?
YES: Replace the suspension air compressor. Refer to "REMOVAL AND INSTALLATION ".
NO: Repair harness or connector.