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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 ".

  1. CHECK COMPRESSOR "ON" SIGNAL FROM SUSPENSION CONTROL UNIT 

    CONSULT

    1. Turn ignition switch OFF.
    2. Disconnect compressor motor relay connector E130.
    3. Turn ignition switch ON.
    4. Select "COMPRESSOR" of AIR LEVELIZER active test items.
    5. While operating test item, check voltage to compressor motor relay connector E130 terminal 2.
      (+) (-) Voltage
      Connector Terminal
      E130 2 Ground Battery voltage

      Is battery voltage present while operating test item? 

      YES: GO TO  3.

      NO: GO TO 2.

      Fig 1: Checking Voltage To Compressor Motor Relay Connector E130 Terminal 2
      G05380819Courtesy of NISSAN NORTH AMERICA, INC.
  2. CHECK COMPRESSOR "ON" SIGNAL CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect suspension control unit connector B3.
    3. Check continuity between suspension control unit connector B3 (A) terminal 1 and compressor motor relay connector E130 (B) terminal 2.
      A B Continuity
      Connector Terminal Connector Terminal
      B3 1 E130 2 Yes
    4. Check continuity between suspension control unit connector B3 (A) terminal 1 and ground.
      Fig 2: Checking Continuity Between Suspension Control Unit Connector B3 Terminal 1 And Compressor Motor Relay Connector E130 Terminal 2
      G05380820Courtesy of NISSAN NORTH AMERICA, INC.
      A - Continuity
      Connector Terminal
      B3 1 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.

  3. CHECK COMPRESSOR MOTOR RELAY GROUND 
    1. Turn ignition switch OFF.
    2. Check continuity between compressor motor relay connector E130 terminal 1 and ground.
      Connector Terminal - Continuity
      E130 1 Ground Yes

      Is continuity present? 

      YES: GO TO 4.

      NO: Repair harness or connector.

      Fig 3: Checking Continuity Between Compressor Motor Relay Connector E130 Terminal 1 And Ground
      G05380821Courtesy of NISSAN NORTH AMERICA, INC.
  4. CHECK COMPRESSOR MOTOR RELAY POWER SUPPLY 
    1. Disconnect compressor motor relay connector E131.
    2. Check voltage between compressor motor relay E131 terminal 5 and ground.
      (+) (-) Voltage
      Connector Terminal
      E131 5 Ground Battery voltage

      Is battery voltage present? 

      YES: GO TO 5.

      NO: Inspect fuse and repair harness or connector.

      Fig 4: Checking Voltage Between Compressor Motor Relay E131 Terminal 5 And Ground
      G05380822Courtesy of NISSAN NORTH AMERICA, INC.
  5. CHECK COMPRESSOR MOTOR RELAY OUTPUT 
    1. Connect compressor motor relay connectors E130 and E131.
    2. Disconnect suspension air compressor connector C9.
    3. Turn ignition ON.
    4. Select "COMPRESSOR" of AIR LEVELIZER active test items.
    5. Check voltage between compressor motor relay C9 terminal 4 and ground.
      (+) (-) Voltage
      Connector Terminal
      C9 4 Ground Battery voltage

      Is battery voltage present? 

      YES: Inspection End.

      NO: Replace the compressor motor relay.

      Fig 5: Checking Voltage Between Compressor Motor Relay C9 Terminal 4 And Ground
      G05380823Courtesy of NISSAN NORTH AMERICA, INC.
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