Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Telematics Transceiver Malfunction (B15A8)

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).

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NOTICE:

• The power switch must be off.
• Do not swap the DCM (Telematics Transceiver) with one from another vehicle.

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PERFORM DCM ACTIVATION