REMOVAL PROCEDURE 1. REMOVE FRONT DOOR SCUFF PLATE LH Click here 2. REMOVE COWL SIDE TRIM SUB-ASSEMBLY LH Click here 3. DISCONNECT FRONT DOOR OPENING TRIM WEATHERSTRIP LH HINT: Disconnect the front door opening trim weatherstrip LH to the extent that allows the removal of the instrument side panel LH. 4. REMOVE INSTRUMENT SIDE PANEL LH Click here
5. REMOVE NO. 1 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY Click here 6. DISCONNECT HOOD LOCK CONTROL LEVER SUB-ASSEMBLY Click here 7. REMOVE NO. 1 INSTRUMENT PANEL SUB-ASSEMBLY Click here 8. REMOVE STEERING HEATER SWITCH (a) Disengage the 2 claws to remove the steering heater switch. 
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Lane Departure Alert System (w/ Steering Control)(for Hv Model): Driving Support ECU (C1A01)
DESCRIPTION If the forward recognition camera detects a malfunction in the internal circuit of the driving support ECU assembly, DTC C1A01 is stored. DTC No. Detection Item DTC Detection Condition Trouble Area C1A01 Driving Support ECU 2 seconds after the power switch is turned on (IG), a malfunctio ...
