DESCRIPTION The main body ECU (multiplex network body ECU) receives remote control signals from the driver door key cylinder or electrical key transmitter sub-assembly. Then, the main body ECU (multiplex network body ECU) activates the power window motor and sends the remote control signals to the sliding roof ECU (sliding roof drive gear assembly) via LIN communication. The sliding roof ECU (sliding roof drive gear assembly) receives those signals and activates the sliding roof motor. CAUTION / NOTICE / HINT NOTICE:
PROCEDURE
(a) Check the key-linked and wireless transmitter-linked functions. Click here
(a) Check the sliding roof operation. Click here OK: Sliding roof operates normally.
(a) Replace the sliding roof ECU (sliding roof drive gear assembly). Click here
(a) Initialize the sliding roof ECU (sliding roof drive gear assembly). Click here
(a) Check the key-linked and wireless transmitter-linked functions. Click here OK: The key-linked and wireless transmitter-linked functions operate normally.
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Toyota Avalon Service & Repair Manual > Can Communication System(for Hv Model): Check Bus 1 Lines for Short Circuit
DESCRIPTION There may be a short circuit between the CAN main bus lines and/or CAN branch lines when the resistance between terminals 23 (CA1H) and 8 (CA1L) of the central gateway ECU (network gateway ECU) is below 54 Ω. Symptom Trouble Area Resistance between terminals 23 (CA1H) and 8 (CA1L) of th ...