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Home >> Lexus >> 2021 >> GX 460 Premium >> Repair and Diagnosis >> Suspension >> Electronic Suspension >> Air Suspension System (Diagnostic Codes & Symptom Tests) >> Air Suspension System >> DTC C1762-62: Continuous Current to Exhaust Solenoid [08/2015 - 08/2019] >> Procedure

DTC C1762-62: Continuous Current to Exhaust Solenoid [08/2015 - 08/2019]: Procedure

  1. CUSTOMER PROBLEM ANALYSIS 
    1. Ask the customer about the vehicle and usage conditions when the DTC was stored.

      HINT: 

      DTC C1762/62 can be stored under unusual vehicle or usage conditions.

      Points to confirm
      • Confirm if there were any foreign objects caught between the body and tires.
      • Confirm if the vehicle has been driven on an unpaved surface or with a wheel not contacting the ground.
      • Confirm if the vehicle height mode has been continuously changed using the height control switch, causing the vehicle to raise and lower repeatedly.

    Result: 

    NEXT 

    See step  2

  2. CHECK DTC 
    1. Clear the DTC (Refer to DTC CHECK / CLEAR [08/2015 - 08/2019] ).
    2. Start the engine and wait for 100 seconds or more.
    3. Set the vehicle height to HI, wait until the vehicle height change is complete, and then return the vehicle height to normal.
    4. Check for DTC (Refer to DTC CHECK / CLEAR [08/2015 - 08/2019] ).
      RESULT

      Result Proceed to
      DTC C1762/62 is output A
      DTC C1762/62 is not output B
      DTC C1762/62 and other DTCs are output C

    Result: 

    B 

    END (C1762/62 WAS OUTPUT DUE TO UNUSUAL VEHICLE OR USAGE CONDITION) 

    Result: 

    C 

    GO TO DIAGNOSTIC TROUBLE CODE CHART 

    (Refer to DIAGNOSTIC TROUBLE CODE CHART [08/2015 - 08/2019] )

    Result: 

    A 

    See step  3

  3. INSPECT AIR TUBE (AIR TUBE FOR CLOG) 
    1. Inspect the air tubes for clogs (Refer to PRECAUTION [08/2015 - ] ).

      OK

      No clogs are found in the air tubes.

    Result: 

    NG 

    REPAIR OR REPLACE AIR TUBE 

    Result: 

    OK 

    See step  4

  4. INSPECT NO. 2 HEIGHT CONTROL VALVE 

    See step  4

    Result: 

    NG 

    REPLACE NO. 2 HEIGHT CONTROL VALVE 

    (Refer to REMOVAL [08/2015 - ] )

    Result: 

    OK 

    See step  5

  5. INSPECT HEIGHT CONTROL COMPRESSOR (EXHAUST SOLENOID VALVE) 

    See step  3

    Result: 

    OK 

    REPLACE SUSPENSION CONTROL ECU 

    (Refer to REMOVAL [08/2015 - ] )

    Result: 

    NG 

    REPLACE HEIGHT CONTROL COMPRESSOR ASSEMBLY 

    (Refer to REMOVAL [08/2015 - ] )