REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during ECM removal/installation are shown below. Necessary Procedures After Parts Removed/Installed/Replaced
NOTICE:
PROCEDURE 1. REMOVE LUGGAGE TRIM SERVICE HOLE COVER Click here 2. DISCONNECT CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL Click here 3. REMOVE ECM
(b) Remove the bolt and separate the engine wire from the No. 2 ECM bracket. (c) Disengage the clamp.
4. REMOVE NO. 1 ECM BRACKET
5. REMOVE NO. 2 ECM BRACKET
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Lane Departure Alert System (w/ Steering Control)(for Hv Model): Lost Communication with TCM (U0101,U0123,U0126,U0129,U0131,U0142,U0155,U0293)
DESCRIPTION When a malfunction is detected between various ECUs and sensors, these DTCs are stored. DTC No. Detection Item DTC Detection Condition Trouble Area U0101 Lost Communication with TCM 2 seconds after the power switch is turned on (IG), while the vehicle is being driven at 1 km/h or 1 mph o ...