Dtc C1440 Steering Angle Sensor Unusual Bank Angle Detected

Brake. Yaris. Ncp93, 131
Brake Control Dynamic Control Systems. Yaris. Ncp93, 131

DESCRIPTION

INSPECTION PROCEDURE

CHECK DTC

CLEAR DTC

DTC C1440 Steering Angle Sensor Unusual Bank Angle Detected


DESCRIPTION

If the skid control ECU (brake actuator assembly) determines that the vehicle is being driven at a steep bank angle, the skid control ECU (brake actuator assembly) 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.
HINT:
DTC C1440 and the yaw rate and acceleration sensor DTC are stored when the skid control ECU (brake actuator assembly) determines that the vehicle is being driven at a steep bank angle and either of the following conditions is met:
  1. The yaw rate and deceleration sensor (yaw rate sensor) is installed at an angle.
  2. The yaw rate and deceleration sensor (yaw rate sensor) signal output is stuck.

DTC No.
DTC Detection Condition
Trouble Area
C1440
Driving at a steep bank angle
Yaw rate and deceleration sensor (yaw rate sensor)

INSPECTION PROCEDURE

1.CHECK DTC

  1. Clear the DTCs (YARIS_NCP93 RM000000XHV0D3X.html).

  1. Perform a road test.

  1. Check if the same DTC is output (YARIS_NCP93 RM000000XHV0D3X.html).

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



B
END

C
REPAIR CIRCUITS INDICATED BY OUTPUT DTCS (YARIS_NCP93 RM000000XHU092X.html)
A


2.CLEAR DTC

  1. Clear the DTCs (YARIS_NCP93 RM000000XHV0D3X.html).

    HINT:
    1. If the skid control ECU (brake actuator assembly) determines that the vehicle is being driven at a steep bank angle, the skid control ECU (brake actuator assembly) stores DTC C1440 while VSC operation is temporarily disabled.
    2. 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