- Yaw rate and acceleration sensor zero point calibration incomplete
- Poor adjustment of the center position of the steering wheel
- Poor adjustment of front wheel alignment
- Brake actuator assembly (Skid control ECU)
| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000VIW2 |
| Model Year Start: 2016 | Model: Sienna | Prod Date Range: [12/2015 - 11/2017] |
| Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: C1290; Steering Angle Sensor Zero Point Malfunction; 2016 - 2017 MY Sienna [12/2015 - 11/2017] | ||
|
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 cable from the negative (-) battery terminal, or if the yaw rate and acceleration 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 cleared 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. |
|
CAUTION / NOTICE / HINT
NOTICE:
When replacing the brake actuator assembly, perform zero point calibration and store system information (See page
![2016 - 2017 MY Sienna [12/2015 - 11/2017]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: CALIBRATION](/t3Portal/stylegraphics/info.gif)
).
PROCEDURE
|
1. |
PERFORM ZERO POINT CALIBRATION OF YAW RATE AND ACCELERATION SENSOR |
(a) Perform zero point calibration of the yaw rate and acceleration sensor (See page
).
HINT:
- When the stored zero point of the yaw rate and acceleration sensor is cleared, steering angle sensor zero point will also be cleared.
- If the zero point and output value of the yaw rate and acceleration 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.
|
|
2. |
CHECK STEERING ANGLE SENSOR ZERO POINT CALIBRATION |
(a) Turn the ignition switch off.
(b) Start the engine.
(c) Drive the vehicle straight ahead at 35 km/h (22 mph) or more for at least 5 seconds.
(d) Check that the center position of the steering wheel is correctly set while driving straight ahead.
HINT:
If the front wheel alignment and steering position are adjusted as a result of an abnormal center position of the steering wheel, acquire yaw rate and acceleration sensor zero point again after adjusting the front wheel alignment and steering position again.
OK:
The steering wheel is centered correctly.
| NG |
|
ADJUST FRONT WHEEL ALIGNMENT OR STEERING POSITION (See page
|
|
|
3. |
RECONFIRM DTC |
(a) Turn the ignition switch off.
(b) Clear the DTCs (See page
).
(c) Start the engine.
(d) Drive the vehicle and turn the steering wheel to the right and left at a speed of 35 km/h (22 mph) or more.
(e) Check if the same DTC is recorded (See page
).
Result
|
Result |
Proceed to |
|---|---|
|
DTC (C1290) is not output |
A |
|
DTC (C1290) is output |
B |
HINT:
If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step (See page
).
| A |
|
END |
| B |
|
|
|