Dtc C1290 Steering Angle Sensor Zero Point Malfunction

Brake. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
Brake Control. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

DESCRIPTION

INSPECTION PROCEDURE

PERFORM ZERO POINT CALIBRATION OF YAW RATE AND DECELERATION SENSOR

CHECK STEERING ANGLE SENSOR ZERO POINT CALIBRATION

RECONFIRM DTC

DTC C1290 Steering Angle Sensor Zero Point Malfunction


DESCRIPTION

The skid control ECU acquires steering angle sensor zero point every time the ignition switch is turned to ON and the vehicle is driven at 35 km/h (22 mph) or more for approximately 5 seconds. The ECU also stores the previous zero point.
If front wheel alignment or the steering wheel position is adjusted without disconnecting the negative battery terminal, or if yaw rate and deceleration sensor zero point is not acquired after the adjustments have been completed, the skid control ECU detects the difference between the previous zero point and newly acquired zero point and outputs this DTC to indicate a poor adjustment.
Warning operation for the steering angle sensor zero point malfunction will be canceled by turning the ignition switch off.

DTC Code
DTC Detection Condition
Trouble Area
C1290
The newly acquired steering angle sensor zero point vastly differs from the previous one.
  1. Yaw rate and deceleration sensor zero point calibration incomplete
  2. Poor adjustment of the center position of the steering wheel
  3. Poor adjustment of front wheel alignment

INSPECTION PROCEDURE

NOTICE:
When replacing the brake actuator assembly, perform zero point calibration (RAV4_ACA30 RM000001K1O00SX.html).
1.PERFORM ZERO POINT CALIBRATION OF YAW RATE AND DECELERATION SENSOR

  1. Perform zero point calibration of the yaw rate and deceleration sensor (RAV4_ACA30 RM000001K1O00SX.html).

    HINT:
    1. When the stored zero point of the yaw rate and deceleration sensor is cleared, steering angle sensor zero point will also be cleared.
    2. If the zero point and output value of the yaw rate and deceleration sensor and the output value of the speed sensors are not normal, steering angle sensor zero point cannot be acquired normally even if the vehicle is driven straight ahead at 35 km/h (22 mph) or more.

NEXT


2.CHECK STEERING ANGLE SENSOR ZERO POINT CALIBRATION

  1. Turn the ignition switch off.

  1. Start the engine.

  1. Drive the vehicle straight ahead at 35 km/h (22 mph) or more for at least 5 seconds.

  1. Check that the center position of the steering wheel is correctly set while driving straight ahead.

    HINT:
    If front wheel alignment and steering position are adjusted as a result of an abnormal center position of the steering wheel, acquire yaw rate and deceleration sensor zero point again after adjusting front wheel alignment and steering position again.
    OK:
    The center position of the steering wheel is correctly set.


NG
ADJUST FRONT WHEEL ALIGNMENT OR STEERING POSITION (RAV4_ACA30 RM00000227W003X.html)
OK


3.RECONFIRM DTC

  1. Turn the ignition switch off.

  1. Clear the DTCs (RAV4_ACA30 RM000000ONJ02VX.html).

  1. Start the engine.

  1. Drive the vehicle at a speed of 35 km/h (22 mph) or more and turn the steering wheel to the right and left.

  1. Check if the same DTC is output (RAV4_ACA30 RM000000ONJ02VX.html).

    Result:
    Result
    		Proceed to
    DTC (C1290) is not output.
    		A
    DTC (C1290) is output.
    		B
    HINT:
    If troubleshooting has been carried out according to the Problem Symptoms Table, refer back to the table and proceed to the next step (RAV4_ACA30 RM000000OS7035X.html).


B
REPLACE BRAKE ACTUATOR ASSEMBLY (RAV4_ACA30 RM000001XV200PX.html)
A

END