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Home >> Lexus >> 2010 >> RX 350 FWD >> Repair and Diagnosis >> Suspension >> Electronic Suspension >> Air Suspension (Diagnostic Codes) >> Air Suspension System >> DTC C1787: Forward/Rearward/Sideways G Sensor Communication Error (FROM 08/2009) >> Procedure

DTC C1787: Forward/Rearward/Sideways G Sensor Communication Error (FROM 08/2009): Procedure

  1. CHECK CAN COMMUNICATION SYSTEM 
    1. Check the CAN communication system for any malfunctions. Refer to DIAGNOSIS SYSTEM .

      Result

      Condition Proceed to
      CAN communication system is normal A
      CAN communication system is malfunctioning B

    B → See step   4 

    A: Go to next step 

  2. CHECK DTC (VEHICLE STABILITY CONTROL SYSTEM) 
    1. Check if the VSC system outputs any DTC relevant to speed sensors. Refer to DTC CHECK / CLEAR .

      Result

      Condition Proceed to
      G sensor DTC or yaw rate and acceleration sensor DTC is output A
      G sensor DTC or yaw rate and acceleration sensor DTC is not output B

    B → See step   5 

    A → See step   3 

  3. REPLACE SUSPENSION CONTROL ECU. Refer to  REMOVAL 
  4. GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING 
  5. GO TO VEHICLE STABILITY CONTROL SYSTEM. Refer to  DIAGNOSTIC TROUBLE CODE CHART