DESCRIPTION Each unit of the audio and visual system connected to the AVC-LAN (communication bus) transmits signals via AVC-LAN communication. If a short to +B or short to ground occurs in an AVC-LAN communication line, the audio and visual system will not function normally because communication is not possible. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE:
HINT: The radio and display receiver assembly is the master unit. PROCEDURE
(a) Remove the radio and display receiver assembly.
(a) Disconnect the G3 radio and display receiver assembly connector. (b) Disconnect the G8 stereo component amplifier assembly connector. (c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(a) Disconnect and reconnect each slave unit one by one until the master unit returns to normal. HINT:
OK: Master unit returns to normal.
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Lane Departure Alert System (w/ Steering Control)(for Gasoline Model): Lost Communication with Front Camera Module (U023A)
DESCRIPTION When a communication error between the forward recognition camera and the power steering ECU (rack and pinion power steering gear assembly) is detected, the forward recognition camera notifies other ECUs and DTC U023A is stored. DTC No. Detection Item DTC Detection Condition Trouble Area ...