DESCRIPTION When the pre-collision system is operating, the millimeter wave radar sensor assembly sends brake control signals to the skid control ECU (brake actuator assembly). If the millimeter wave radar sensor assembly receives a vehicle stability control system malfunction signal from the skid control ECU (brake actuator assembly) via CAN communication, DTC C1A50 will be stored.
CAUTION / NOTICE / HINT NOTICE:
PROCEDURE
HINT: Pre-collision system DTC C1A50 may be stored due to a malfunction in the vehicle stability control system. Therefore, it is necessary to check for and troubleshoot vehicle stability control system DTCs first. (a) Check for DTCs. Click here
(a) Clear the DTCs. Click here (b) Make sure that the DTC detection conditions are met. HINT: If the detection conditions are not met, the system cannot detect the malfunction. (c) Check for DTCs. Click here
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Toyota Tundra Service Manual > Can Communication System: Precaution
PRECAUTION CAN COMMUNICATION SYSTEM TROUBLESHOOTING (a) Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output. Click here PRECAUTION FOR STEERING SYSTE ...