DTC C1439: Steering Angle Sensor Initialization Incomplete; DTC C1445: Vehicle Driven with Steering Angle Sensor not Initialized [02/2019 - 12/2021]: Description
The skid control ECU (brake booster with master cylinder assembly) acquires the steering 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 previous zero points.
DTCs C1439 and C1445 will be cleared when the ignition switch is turned off.
| DTC No. | Detection Item | INF Code | DTC Detection Condition | Trouble Area | Note |
|---|---|---|---|---|---|
| C1439 | Steering Angle Sensor Initialization Incomplete | 752 | After the steering sensor zero point calibration is cleared due to, for example, fluctuations in the power source, the steering sensor zero point calibration cannot be obtained for 0.048 seconds of continuous driving. |
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| C1445 | Vehicle Driven with Steering Angle Sensor not Initialized | 753 | Steering sensor zero point calibration cannot be obtained when the vehicle is driven without a record of steering sensor zero point calibration at a speed of 35 km/h (22 mph) or more for 60 seconds or more. |
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