Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: DCM System Internal Failure (B15A804)

NOTICE:

• Regardless of whether DTC B15A804 has been output as a present or history DTC, the DCM (telematics transceiver) should be replaced.
• Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Safety Connect System.

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NOTICE:

• The engine switch must be off.
• Do not exchange the DCM (telematics transceiver) with one from another vehicle.

Microphone Circuit Open (B157213)

DESCRIPTION This DTC is stored when the DCM (telematics transceiver) detects a malfunction in the telephone microphone assembly circuit. DTC No. Detection Item DTC Detection Condition Trouble ...

GNSS Antenna Circuit Short to Ground (B15C111,B15C113)

DESCRIPTION These DTCs are stored when a malfunction occurs in the telephone and GPS antenna (for Roof Side) circuit. DTC No. Detection Item DTC Detection Condition Trouble Area B15C111 ...

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