DTC U1A4B:54 [REAR VEHICLE MONITORING SYSTEM]

id0902z2668600

DESCRIPTION

Radar aiming is not performed or radar sensor axis is deviated (Rear vehicle monitoring control module (LH))

DETECTION CONDITION

Rear vehicle monitoring control module (LH) radar aiming is out of range for 1 s or more.

POSSIBLE CAUSE

•  Rear vehicle monitoring control module (LH) radar aiming is not performed

•  Rear vehicle monitoring control module (LH) radar sensor axis is deviated

•  Rear vehicle monitoring control module (LH) malfunction

DESCRIPTION	Radar aiming is not performed or radar sensor axis is deviated (Rear vehicle monitoring control module (LH))
DETECTION CONDITION	Rear vehicle monitoring control module (LH) radar aiming is out of range for 1 s or more.
POSSIBLE CAUSE	• Rear vehicle monitoring control module (LH) radar aiming is not performed • Rear vehicle monitoring control module (LH) radar sensor axis is deviated • Rear vehicle monitoring control module (LH) malfunction

Diagnostic Procedure

STEP	INSPECTION		ACTION
1	PERFORM REAR VEHICLE MONITORING CONTROL MODULE (LH) RADAR AIMING • Perform the rear vehicle monitoring radar aiming (LH) using the M-MDS. (See REAR VEHICLE MONITORING RADAR AIMING.) • Clear the DTC from the rear vehicle monitoring control module using the M-MDS. (See CLEARING DTC [REAR VEHICLE MONITORING SYSTEM].) • Verify the rear vehicle monitoring system DTC using the M-MDS. (See DTC INSPECTION [REAR VEHICLE MONITORING SYSTEM].) • Is the same DTC present?	Yes	Perform the rear vehicle monitoring radar aiming (LH) again using the M-MDS, then go to the next step. (See REAR VEHICLE MONITORING RADAR AIMING.)
1		No	Go to Step 3.
2	VERIFY TROUBLESHOOTING COMPLETED • Clear the DTC from the rear vehicle monitoring control module using the M-MDS. (See CLEARING DTC [REAR VEHICLE MONITORING SYSTEM].) • Verify the rear vehicle monitoring system DTC using the M-MDS. (See DTC INSPECTION [REAR VEHICLE MONITORING SYSTEM].) • Is the same DTC present?	Yes	Replace the rear vehicle monitoring control module (LH), then go to the next step. (See REAR VEHICLE MONITORING CONTROL MODULE REMOVAL/INSTALLATION.)
2		No	Go to the next step.
3	VERIFY THAT NO OTHER DTCs ARE PRESENT • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [REAR VEHICLE MONITORING SYSTEM].)
3		No	DTC troubleshooting completed.