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 Repair Manual > Air Cooled Oil Cooler: Removal
    REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during oil cooler assembly removal/installation are shown below. Necessary Procedure After Parts Removed/Insta ...

    Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Air Conditioning System: System Diagram
    SYSTEM DIAGRAM FRONT AIR CONDITIONING SYSTEM REAR AIR CONDITIONING SYSTEM (w/ Rear Air Conditioning System) Communication Table Sender Receiver Signal Communication Line Air conditioning amplifier assembly ECM Magnetic clutch request signal CAN Idle up request signal ...

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

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

    © 2024 Copyright www.lexusrx.net
    0.0157