C1283

DTC C1283 YAW RATE AND LATERAL G SENSOR - SIGNAL

COMPONENT LOCATION
Refer to DTC C1282. C1282

GENERAL DESCRIPTION
Refer to DTC C1282. C1282

DTC DESCRIPTION
A lateral acceleration reference signal is calculated from the wheel speeds, the steering angle and the yaw rate signals to observe the lateral acceleration sensor signal. The difference between the reference signal and the sensor signal is evaluated for failure detection. A yaw rate reference signal is calculated from the wheel speeds, the steering angle and the lateral acceleration signals to observe the yaw rate sensor signal. The difference between the reference signal and the sensor signal, and the gradient of the measured sensor signal is evaluated for the failure detection. If the difference between estimated value and measured value of the sensor is larger than predefined value for predefined time, the failure is recognized. Plausibility faults (signals received which fall outside of the sensor characteristics) are also recognized.

DTC DETECTING CONDITION











MONITOR SCANTOOL DATA
Refer to DTC C1282. C1282

TERMINAL & CONNECTOR INSPECTION
Refer to DTC C1200. C1200

SIGNAL CIRCUIT INSPECTION
1. Ignition "ON" & Engine "OFF".
2. Measure voltage between terminal "16,18,20" of the HECU harness connector and chassis ground.





3. Is the measured voltage within specifications?

YES
> Substitute with a known-good HECU and check for proper operation. If problem is corrected, replace HECU and then go to "Verification Of Vehicle Repair" procedure.

NO
> Check for open or short in the Yaw Rate & Lateral G sensor harness between terminal "3, 5, 6" of the Yaw Rate & Lateral G sensor harness connector and terminal "16, 18, 20" of the HECU harness connector. Repair as necessary and then go to "Verification Of Vehicle Repair" procedure.
> If OK, Go to "Component Inspection" procedure.

GROUND CIRCUIT INSPECTION
Refer to DTC C1282. C1282

VERIFICATION OF VEHICLE REPAIR
Refer to DTC C1101. C1101