DESCRIPTION The forward recognition camera receives vehicle speed signals from the skid control ECU (brake booster with master cylinder assembly). If the skid control ECU (brake booster with master cylinder assembly) receives a vehicle speed sensor malfunction signal, it informs the forward recognition camera via CAN communication, and DTC C1AA3 is stored.
CAUTION / NOTICE / HINT NOTICE: The front camera system uses the CAN communication system. First, confirm that there are no malfunctions in the CAN communication system. Refer to How to Proceed with Troubleshooting. Click here
PROCEDURE
HINT: If DTC C1AA3 is output by the front camera system, perform troubleshooting for the electronically controlled brake system. Click here
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Can Communication System(for Gasoline Model): Parts Location
PARTS LOCATION ILLUSTRATION *1 HEADLIGHT ECU SUB-ASSEMBLY RH (w/ Cornering Light) *2 BRAKE ACTUATOR ASSEMBLY *3 FORWARD RECOGNITION CAMERA *4 ECM *5 RACK AND PINION POWER STEERING GEAR ASSEMBLY *6 HEADLIGHT ECU SUB-ASSEMBLY LH (w/ Cornering Light) *7 MILLIMETER WAVE RADAR SENSOR ASSEMBLY *8 BLIND SP ...
