C1A45

CRUISE CONTROL: LANE-KEEPING ASSIST SYSTEM: C1A45: Vehicle Speed Sensor
C1A45 - Vehicle Speed Sensor

DESCRIPTION

The driving support ECU receives vehicle speed signals from the skid control ECU via the CAN communication line to control the lane-keeping assist system. When the driving support ECU receives information that there is a malfunction in the vehicle speed sensor, DTC C1A45 is stored.





INSPECTION PROCEDURE

PROCEDURE

1. CHECK FOR DTC (ELECTRONICALLY CONTROLLED BRAKE SYSTEM)

(a) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.

OK:

Electrically controlled brake system DTCs are not output.

NG -- GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM How To Proceed With Troubleshooting
OK -- Continue to next step.

2. CHECK FOR DTC

(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.

HINT
If the detection conditions are not met, the system cannot detect the malfunction.

(1) Drive the vehicle at a 50 km/h (31 mph) or more, and operate lane-keeping assist system.

(b) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.

OK:

DTC C1A45 is not output.

NG -- REPLACE DRIVING SUPPORT ECU Removal

OK -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting