DTC C1A01 Driving Support ECU: 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 driving support ECU uses the front millimeter wave radar sensor, object recognition camera and driver monitor camera to detect obstacles in front of the vehicle and the direction that the driver's head is facing.
Based on this information, the driving support ECU calculates the risk of a collision and operates the pre-collision system when it determines that the risk is high.
When DTC C1A01 is detected, the driving support ECU only detects the "PRE-COLLISION 2*1 or Pre-Collision 2*2" DTC malfunctions.
HINT.
*1 for Intelligent tester
*2 for Techstream
DTC TROUBLE DETECTION CONDITION CHART
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| C1A01 | While initial check is running, power switch is ON (IG) and pre-collision system is operating, driving support ECU detects an internal malfunction for 1 sec | Driving support ECU |