CAUTION / NOTICE / HINT HINT: *: Use the Techstream. PROCEDURE
(a) Interview the customer and confirm the problem. Click here
(a) Check and record DTCs and Freeze Frame Data. for DTC Check / Clear: Click here for Freeze Frame Data: Click here
(b) Clear the DTCs and Freeze Frame Data. for DTC Check / Clear: Click here
for Freeze Frame Data: Click here
(c) Reconfirm the DTCs. (1) Reconfirm the DTCs based on the recorded DTCs and Freeze Frame Data. for DTC Check / Clear: Click here for Freeze Frame Data: Click here
HINT:
(a) Proceed to Diagnostic Trouble Code Chart. Click here
(a) Proceed to How to Proceed with Troubleshooting. Click here
(a) Proceed to Problem Symptoms Table. Click here
(a) Clear the DTCs. Click here (b) Check if the same DTCs are output. Click here
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Navigation System(for Gasoline Model): Telematics Transceiver Disconnected (B15DB)
DESCRIPTION If the radio and display receiver assembly cannot detect the DCM (telematics transceiver) for a certain period of time (90 seconds) after the engine switch is turned on (ACC) and the radio and display receiver assembly confirms that the information is missing by checking past DCM (telema ...