1. Yaw Rate Sensor
The longitudinal G sensor is installed in the YAW-RATE sensor.
This longitudinal G sensor detects vertical acceleration of the vehicle, while the lateral G sensor detects lateral acceleration of the vehicle. The HECU uses thses signals for the Hill start Assist Control function.
If abnormal zero-setting is detected or no information in the HECU is detected, a failure is recognized.
Item
Detecting Condition
Possible cause
DTC Strategy
Signal Monitoring
Uncalibrated longitudinal G sensor
Monitoring Period
During longitudinal G sensor's zero-setting
Enable Conditions
Serial number of the longitudinal G sensor in the HECU does not confirm to serial number received from sensor
Fail-Safe
Limit HAC(Hill-start Assist Control) function. Allow ESP control
The ESP warning lamp is activated