Lexus NX: DCM System Internal Failure (B15A804)
Lexus NX Service Manual / Audio & Visual & Telematics / Cellular Communication / Safety Connect System / 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
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PROCEDURE
| 1. | REPLACE DCM (TELEMATICS TRANSCEIVER) |
(a) Replace the DCM (telematics transceiver).
Click here
NOTICE:
- The power switch must be off.
- Do not exchange the DCM (telematics transceiver) with one from another vehicle.
| NEXT | .gif) | PERFORM DCM ACTIVATION |
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Telephone Main Antenna Circuit Short to Ground (B15CB11,B15CB13)
DESCRIPTION This DTC is stored when the DCM (telematics transceiver) detects an open or a short in the telephone and GPS antenna (roof antenna assembly) circuit. DTC No. Detection Item DTC Dete
Green Indicator Remains Off
DESCRIPTION After power switch on (IG), the DCM (telematics transceiver) will enter into self check mode. The manual (SOS) switch red indicator will illuminate for 2 seconds and turn off followed by t
Unable To Connect To Call Center
DESCRIPTION This may occur when the intensity of telephone radio frequency was very weak or the safety connect system has a malfunction and a DTC is stored. PROCEDURE 1. CHECK COMMUNICATION SERV
SEE MORE:
Removal
REMOVAL CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH and LH sides.
The procedure listed below is for the LH side.
PROCEDURE 1. REMOVE FRONT DOOR TRIM COVER LH Click here 2. REMOVE FRONT DOOR INSIDE HANDLE BEZEL PLUG LH Click here 3. REMOVE POWER WINDOW REGULATOR MAST
Data List / Active Test
DATA LIST / ACTIVE TEST DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be dis
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