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Home >> Lexus >> 2007 >> GX 470 >> Repair and Diagnosis >> Suspension >> Suspension Control Systems >> Suspension Control >> Air Suspension System >> Height Control OFF Indicator Light Circuit >> Inspection Procedure

Inspection Procedure

  1. INSPECT HEIGHT CONTROL OFF INDICATOR LIGHT 
    1. Turn the ignition switch to the ON position.
    2. Check that the height control manual indicator light comes on.

      OK: 

      Height control manual indicator light conies on, and then goes off after 2 seconds. 

    NG: GO TO  COMBINATION METER 

    OK: Go to next step 

  2. CHECK HARNESS AND CONNECTOR (SUSPENSION CONTROL ECU - COMBINATION METER) 
    1. Check for open and short circuit in the harness and the connector between the suspension control ECU and the combination meter (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE ).

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: REPLACE SUSPENSION CONTROL ECU 

  3. CHECK CONNECTORS 
    1. Check that the connectors are properly connected to the suspension control ECU.

      OK: 

      The connectors are properly connected. 

    NG: CONNECT CONNECTORS 

    OK: Go to next step 

  4. CHECK DTC 
    1. Clear and check the DTC (See DTC CHECK/CLEAR  ).

    Result 

    RESULT REFERENCE

    Result Proceed to
    Normal system code is output. A
    DTC is output. B

    NG: REPAIR CIRCUIT INDICATED BY OUTPUT DTC 

    OK: Go to next step 

  5. CHECK HARNESS AND CONNECTOR (SUSPENSION CONTROL ECU - COMBINATION METER) 
    1. Check for open and short circuit in the harness and the connector between the suspension control ECU and the combination meter (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE ).

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: REPLACE SUSPENSION CONTROL ECU 

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