DESCRIPTION This may occur when the intensity of telephone radio frequency was very weak, or the safety connect system has a malfunction and a DTC is set. PROCEDURE
(a) Move the vehicle. (1) If the vehicle is outside the communication service area, move the vehicle to a communication service area, wait for a while and perform the operation again. OK: Same problem does not occur.
(a) Turn the power switch off. (b) Connect the Techstream to the DLC3. (c) Turn the power switch on (IG) and wait for 10 seconds. (d) Turn the Techstream on. (e) Perform "Health Check" and check for current DTCs. Click here
(a) Check "DCM Operation History". Click here
HINT: If there was a communication problem in the past but the communications are working correctly now, it is possible that the source of the problem was temporary radio interference, or the vehicle may have been outside the service area.
(a) Replace the DCM (Telematics Transceiver). Click here NOTICE:
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Tire Pressure Warning System(for Gasoline Model): Tire Pressure Monitor Receiver Communication Stop (B1247)
DESCRIPTION The main body ECU (multiplex network body ECU) and tire pressure warning ECU and receiver communicate by direct line. If a malfunction occurs in this communication signal, B1247 is output by the main body ECU (multiplex network body ECU). DTC No. Detection Item DTC Detection Condition Tr ...
