DTC U3000:97 [REAR VEHICLE MONITORING SYSTEM]

id0902z2885200


Malfunction location

•  Radar sensor sensitivity temporarily decreases depending on various external and environmental factors (rear vehicle monitoring control module (RH/LH))

Detection condition

•  Radar sensor sensitivity in rear vehicle monitoring control module (RH/LH) temporarily decreases

Possible Causes

•  Dirt or foreign material (reflective object) on the surface of rear bumper
•  Dirt or foreign material (reflective object) on rear vehicle monitoring control module (RH/LH)
•  Concavity and convexity on the surface of the repaired rear bumper
•  Rear vehicle monitoring control module (LH) or (RH) malfunction

Diagnostic Procedure

STEP

INSPECTION

ACTION
1
VISUALLY INSPECT REAR BUMPER SURFACE
•  Visually inspect the rear bumper surface.
•  Is any foreign material (reflective object) adhered to the rear bumper?
Yes
Remove dirt or foreign material (reflective object), then go to Step 5.
No
Go to the next step.
2
VISUALLY INSPECT AREA AROUND REAR VEHICLE MONITORING CONTROL MODULE (LH) AND (RH)
•  Visually inspect the area around the rear vehicle monitoring control module (LH) and (RH).
•  Is any foreign material (reflective object) adhered to the area around the rear vehicle monitoring control module (LH) or (RH)?
Yes
Remove dirt or foreign material (reflective object), then go to Step 5.
No
Go to the next step.
3
VERIFY REAR BUMPER REPAIR HISTORY
•  Verify if the rear bumper had been repaired or repainted before.
•  Was non-Mazda genuine paint used?
Yes
Replace the rear bumper, then go to Step 5.
(See REAR BUMPER REMOVAL/INSTALLATION.)
No
Go to the next step.
4
VERIFY REAR VEHICLE MONITORING CONTROL MODULE (LH) MALFUNCTION
•  Clear the DTC from the rear vehicle monitoring control module using the M-MDS.
•  Drive the vehicle at 40 km/h [25 mph] or more.
•  Verify the rear vehicle monitoring system DTC using the M-MDS.
•  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.)
No
Go to Step 6.
5
VERIFY TROUBLESHOOTING COMPLETED
•  Clear the DTC from the rear vehicle monitoring control module using the M-MDS.
•  Drive the vehicle at 40 km/h [25 mph] or more.
•  Verify the rear vehicle monitoring system DTC using the M-MDS.
•  Is the same DTC present?
Yes
Replace the rear vehicle monitoring control module (RH), then go to the next step.
(See REAR VEHICLE MONITORING CONTROL MODULE REMOVAL/INSTALLATION.)
No
Go to the next step.
6
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].)
No
DTC troubleshooting completed.