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:
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Regardless of whether DTC B15A804 has been output as a present or history DTC, the DCM (telematics transceiver) should be replaced.
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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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PROCEDURE
1. | REPLACE DCM (TELEMATICS TRANSCEIVER) |
(a) Replace the DCM (telematics transceiver) with a new one.
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NOTICE:
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The power switch must be off.
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Do not exchange the DCM (telematics transceiver) with one from another vehicle.
NEXT | | PERFORM DCM ACTIVATION |
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PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT 2. CONFIRM PROBLEM SYMPTOMS
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PARTS LOCATION ILLUSTRATION *1 HEADLIGHT ECU SUB-ASSEMBLY RH *2 BRAKE ACTUATOR ASSEMBLY *3 FORWARD RECOGNITION CAMERA *4 ECM *5 RACK AND PINION POWER STEERING GEAR ASSEMBLY *6 HEADLIGHT ECU SUB-ASSEMBLY LH *7 MILLIMETER WAVE RADAR SENSOR ASSEMBLY *8 BLIND SPOT
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