LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2009 >> QX56 AWD >> Repair and Diagnosis >> Suspension >> Suspension Control Systems >> Component Diagnosis >> Compressor Motor Relay >> Component Function Check
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Component Function Check

  1. CHECK COMPRESSOR MOTOR RELAY OPERATION
    CAUTION: The "COMPRESSOR" active test will remain ON until it is turned off using CONSULT-III. Allowing the compressor to run for an extended period of time may cause damage to the suspension control system components due to excessive air pressure.

    CONSULT-III

    1. Turn ignition ON.
    2. Select "COMPRESSOR" of AIR LEVELIZER active test items.
    3. While operating test item, check that the suspension air compressor turns ON.

      ON: Compressor turns ON 

      OFF: Compressor turns OFF 

      Does the suspension air compressor operate properly? 

      YES: Compressor motor relay and suspension air compressor are operating normally.

      No: Refer to "DIAGNOSIS PROCEDURE ".