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). (See REAR VEHICLE MONITORING RADAR AIMING.) • Clear the DTC from rear vehicle monitoring control module using the M-MDS. (See CLEARING DTC [REAR VEHICLE MONITORING SYSTEM].) • Switch the ignition to ON and wait for 1.5 s or more. • Perform the rear vehicle monitoring control module DTC inspection 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, 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 rear vehicle monitoring control module using the M-MDS. (See CLEARING DTC [REAR VEHICLE MONITORING SYSTEM].) • Switch the ignition to ON and wait for 1.5 s or more. • Perform the rear vehicle monitoring control module DTC inspection 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.