DESCRIPTION This DTC is set when an error in the EEPROM or PLL IC is detected on the DCM (Telematics Transceiver) self-check. The EEPROM (Electrically Erasable Programmable Read-Only Memory) stores the various data to operate the safety connect system. The PLL IC (Phase-Locked Loop Integrated Circuit) oscillates telephone radio frequency.
CAUTION / NOTICE / HINT NOTICE: Regardless of whether DTC B15A8 has been output as a present or history DTC, the DCM (Telematics Transceiver) should be replaced. PROCEDURE
(a) Replace the DCM (Telematics Transceiver). Click here NOTICE:
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Power Tilt And Power Telescopic Steering Column System(for Gasoline Model): Parts Location
PARTS LOCATION ILLUSTRATION *1 TILT AND TELESCOPIC SWITCH *2 STEERING COLUMN ASSEMBLY *3 NO. 1 ENGINE ROOM RELAY BLOCK AND NO. 1 JUNCTION BLOCK ASSEMBLY - TI&TE FUSE *4 INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - ECU-DCC NO. 2 FUSE - ECU-IG1 NO. 4 FUSE *5 MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU ...