Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: DCM System Internal Failure (B15A804)

DESCRIPTION

This DTC is stored when an internal circuit malfunction is detected by the DCM (telematics transceiver) self check.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

B15A804

DCM System Internal Failure

DCM (telematics transceiver) internal malfunction

DCM (telematics transceiver)

CAUTION / NOTICE / HINT

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.

    Click here

PROCEDURE

1.

REPLACE DCM (TELEMATICS TRANSCEIVER)

(a) Replace the DCM (telematics transceiver) with a new one.

Click here

NOTICE:

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

PERFORM DCM ACTIVATION

    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 ...

    Other materials:

    Lexus RX (RX 350L, RX450h) 2016-2024 Owners Manual > Hybrid system: Hybrid system precautions
    Take care when handling the hybrid system, as it is a high voltage system (about 650 V at maximum) as well as contains parts that become extremely hot when the hybrid system is operating. Obey the warning labels attached to the vehicle. The illustration is an example for explanation and may ...

    Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Engine Unit: Disassembly
    DISASSEMBLY PROCEDURE 1. REMOVE OIL FILLER CAP SUB-ASSEMBLY (a) Remove the oil filler cap sub-assembly from the cylinder head cover sub-assembly LH. (b) Remove the oil filler cap gasket from the oil filler cap sub-assembly. 2. REMOVE SPARK PLUG Click here 3. REMOVE P ...

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

    © 2024 Copyright www.lexusrx.net
    0.0173