DESCRIPTION This DTC is set when the DCM (Telematics Transceiver) detects one of the following:
CAUTION / NOTICE / HINT HINT: Before performing this diagnostic procedure, make sure to perform Health Check and confirm that the DCM/VIN registration information is correct. Click here
PROCEDURE
(a) Turn the engine switch off. (b) Connect the Techstream to the DLC3. (c) Turn the engine switch on (IG) and wait for 10 seconds. (d) Turn the Techstream on. (e) Clear the DTCs. Body Electrical > Telematics > Clear DTCs(f) Recheck for DTCs. Body Electrical > Telematics > Trouble Codes
(a) Replace the BUB (Back-Up Battery) with a known good one and check if the same problem occurs again. Click here NOTICE: The BUB (Back-Up Battery) must not be replaced while an ACN call is in progress. Click here
(a) Clear the DTCs. Click here
(a) Recheck for DTCs and check if the same trouble occurs again. Click here OK: No DTC is output.
(a) Replace the DCM (Telematics Transceiver). Click here NOTICE:
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Can Communication System(for Hv Model): Open in One Side of Bus 3 Branch Line
DESCRIPTION When the CAN bus main lines are normal (no open, short to ground, short to +B or short between lines) and there is an ECU or sensor on the "Communication Bus Check" screen that is indicated as not communicating or whose connection status on the "Communication Bus Check" screen changes in ...
