DTC U3000:97 [REAR VEHICLE MONITORING SYSTEM]
id0902z2885200
System malfunction location |
Radar sensor sensitivity temporarily decreases depending on various external and environmental factors (rear vehicle monitoring control module (RH)) |
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Detection condition
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• Radar sensor sensitivity in rear vehicle monitoring control module (RH) temporarily decreases
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Fail-safe
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• Inhibits the rear vehicle monitoring system.
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Possible cause
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• Rear bumper soiling or foreign material (reflective object) is adhered.
• Dirt or foreign material (reflective object) on rear vehicle monitoring control module (RH)
• Concavity and convexity on the surface of the repaired rear bumper
• Rear vehicle monitoring control module (RH) malfunction
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System wiring diagram
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Diagnostic Procedure
Step |
Inspection |
Action |
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1
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INSPECT REAR BUMPER SURFACE
• Visually inspect the rear bumper surface for the following:
• Is the rear bumper normal?
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Yes
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Go to the next step.
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No
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Remove dirt or foreign material (reflective object), then go to Step 4.
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2
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INSPECT AREA AROUND REAR VEHICLE MONITORING CONTROL MODULE (RH)
• Visually inspect the area around the rear vehicle monitoring control module (RH) for the following.
• Is the area around the rear vehicle monitoring control module (RH) normal?
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Yes
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Go to the next step.
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No
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Remove dirt or foreign material (reflective object), then go to Step 4.
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3
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VERIFY REAR BUMPER REPAIR HISTORY
• Verify if the rear bumper had been repaired or repainted before.
• Is there a problem with the repair? (Is the paint Mazda genuine?)
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Yes
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Go to the next step.
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No
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Replace the rear bumper, then go to the next step.
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4
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PERFORM DTC INSPECTION AND VERIFY IF MALFUNCTIONING PART IS REAR VEHICLE MONITORING CONTROL MODULE (RH)
• Clear the DTC for the rear vehicle monitoring control module using the M-MDS.
• Drive the vehicle at 40 km/h {25 mph} or more.
• Perform the DTC inspection for the rear vehicle monitoring control module using the M-MDS.
• Is DTC U3000:97 displayed?
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Yes
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Replace the rear vehicle monitoring control module (RH), then go to the next step.
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No
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Go to the next step.
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5
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VERIFY IF OTHER DTCs DISPLAYED
• Are any other DTCs displayed?
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Yes
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Repair the malfunctioning part according to the applicable DTC troubleshooting.
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No
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DTC troubleshooting completed.
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