Lexus ES: 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 |
READ NEXT:
DESCRIPTION These DTCs are stored when a malfunction occurs in the telephone and GPS antenna assembly (for Roof Side) circuit. DTC No. Detection Item DTC Detection Condition Trouble Area
DESCRIPTION If the DCM (telematics transceiver) detects an error in communication between the DCM (telematics transceiver) and the airbag ECU assembly as a result of the DCM (telematics transceiver) s
DESCRIPTION If the DCM (telematics transceiver) detects an error in the communication between the DCM (telematics transceiver) and the map light sub-assembly (manual (SOS) switch) as a result of the D
SEE MORE:
DTC CHECK / CLEAR CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Air Conditioner / Trouble Codes. Body Electrical > Air Conditioner > Trouble Codes (e) Check for DTCs. CLEAR DTC
DESCRIPTION The headlight ECU sub-assembly LH and headlight ECU sub-assembly RH internally boost the power supply voltage to ensure a constant supplied current for the lo/hi beam LED of their respective headlight. By monitoring the LED power supply voltage, abnormal current and malfunctions can be d
© 2016-2025 Copyright www.lexguide.net
