DESCRIPTION When a new driving support ECU assembly is installed, it receives vehicle specification information (destination, steering wheel position, etc.) from the main body ECU (multiplex network body ECU) and stores the information. DTC C1A02 is stored when the driving support ECU assembly receives the vehicle specification information from the main body ECU (multiplex network body ECU) but cannot store it.
CAUTION / NOTICE / HINT NOTICE:
PROCEDURE
(a) Replace the driving support ECU assembly. Click here
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Lane Departure Alert System (w/ Steering Control)(for Hv Model): How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT: Use these procedures to troubleshoot the lane departure alert system (w/ steering control). *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT 2. INSPECT AUXILIARY BATTERY VOLTAGE (a) Measure the auxiliary battery voltage with the power switch off. Sta ...