VEHICLE STABILITY CONTROL SYSTEM, Diagnostic DTC:C1440

DTC Code DTC Name
C1440 Steering Angle Sensor Unusual Bank Angle Detected

DESCRIPTION

If the brake actuator assembly (skid control ECU) determines that the vehicle is being driven at a steep bank angle, the brake actuator assembly (skid control ECU) stores DTC C1440 while VSC operation is temporarily disabled.

It is not a malfunction if the system and sensor circuits are normal and if the normal VSC operation resumes, which automatically clears DTC C1440, after the vehicle is returned to a normal position.

Tech Tips

DTC C1440 and the yaw rate and acceleration sensor DTC are stored when the brake actuator assembly (skid control ECU) determines that the vehicle is being driven at a steep bank angle and either of the following conditions is met:


  • The center airbag sensor assembly (yaw rate sensor) is installed at an angle.

  • The center airbag sensor assembly (yaw rate sensor) signal output is stuck.

DTC Code DTC Detection Condition Trouble Area
C1440 Driving at a steep bank angle Center airbag sensor assembly (Yaw rate sensor)

PROCEDURE


  1. CHECK DTC


    1. Clear the DTCs Click here.

    2. Perform a road test.

    3. Check if the same DTC is output Click here.

      Result
      Result Proceed to
      DTC C1440 is output A
      DTC C1440 is not output B
      Yaw rate and acceleration sensor DTC is output C

    B

    END

    C

    REPAIR CIRCUITS INDICATED BY OUTPUT DTCS Click here

    A

  2. CLEAR DTC


    1. Clear the DTCs Click here.

      Tech Tips


      • If the brake actuator assembly (skid control ECU) determines that the vehicle is being driven at a steep bank angle, the brake actuator assembly (skid control ECU) stores DTC C1440 while VSC operation is temporarily disabled.

      • It is not a malfunction if the system and sensor circuits are normal and if the normal VSC operation resumes, which automatically clears DTC C1440, after the vehicle is returned to a normal position.


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    END