LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2010 >> GX 460 >> Repair and Diagnosis >> Suspension >> Electronic Suspension >> Air Suspension (Diagnostic Codes) >> Air Suspension System >> DTC C1783/83: Front Wheels Speed Sensor Signal Malfunction >> Procedure

DTC C1783/83: Front Wheels Speed Sensor Signal Malfunction: Procedure

  1. CHECK FOR DTC (AIR SUSPENSION SYSTEM) 
    1. Clear the DTCs. Refer to DTC CHECK / CLEAR .
    2. Perform a road test.
    3. Check if DTC U0122/71 is output. Refer to DTC CHECK / CLEAR .
      RESULT

      Result Proceed to
      DTC is not output or only DTC 1783/83 is output A
      DTCs 1783/83 and U0122/71 are output B

    B → See step   3 

    A: Go to next step 

  2. CHECK FOR DTC (VEHICLE STABILITY CONTROL SYSTEM) 
    1. Check if DTC C1783/83 and a brake control system speed sensor malfunction DTC are output. Refer to DTC CHECK / CLEAR .
      RESULT

      Result Proceed to
      DTCs are not output A
      DTCs are output B

    B → See step   4 

    A → See step   5 

  3. GO TO DTC U0122/71. Refer to  DTC U0100/71: Lost Communication with ECM/PCM "A"; DTC U0114/71: Lost Communication with Four-Wheel Drive Clutch Control Module; DTC U0122/71: Lost Communication with Vehicle Dynamics Control Module; DTC U0124/71: Lost Communication with Lateral Acceleration Sensor Module; DTC U0126/71: Lost Communication with Steering Angle Sensor Module; DTC U0140/71: Lost Communication with Body Control Module  
  4. GO TO VEHICLE STABILITY CONTROL SYSTEM (DIAGNOSTIC TROUBLE CODE CHART). Refer to  DIAGNOSTIC TROUBLE CODE CHART 
  5. REPLACE SUSPENSION CONTROL ECU. Refer to  REMOVAL