DTC C1A46 Yaw Rate Sensor: Description
WARNING: This page is about a different car, the 2008 Lexus LS 600hL. However, it is still accessible from the selected car via links, so may be relevant.
The skid control ECU receives vehicle stability signals from the yaw rate sensor and sends the signals to the driving support ECU and hybrid vehicle control ECU. If the skid control ECU detects that the yaw rate sensor is malfunctioning, the skid control ECU sends a malfunction signal to the driving support ECU and outputs DTC C1A46. Also, when DTC C1A46 is output, the skid control ECU outputs DTC C1234 at the same time.
When DTC C1A46 is detected, DTC C1234 is also output from the "ABS/VSC*1 or ABS/VSC/TRAC*2".
HINT:
*1: for Intelligent tester
*2: for Techstream
DTC TROUBLE DETECTION CONDITION CHART
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| C1A46 | While vehicle speed is 5 km/h (3 mph) or more, malfunction signal from skid control ECU to yaw rate sensor is detected for 1 sec |
|