DTC U3000:97 [BLIND SPOT MONITORING (BSM) CONTROL MODULE CONNECTOR 10-PIN TYPE]

id0902q3393600

Description | Radar performance malfunction
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Detection condition | • BSM control module internal radar sensor sensitivity is decreased. • BSM control module internal radar sensor axis is deviated.
Fail-safe function | • Blind spot monitoring (BSM) system is stopped.
Possible cause | • Rear bumper malfunction (Dirt or foreign matter (reflective object) is adhered.) • BSM control module malfunction (Dirt or foreign matter (reflective object) is adhered.) • Concavity and convexity on the surface of the repaired rear bumper • BSM control module malfunction
System wiring diagram | Not applicable

Diagnostic Procedure

Step | Inspection | Action
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1 | INSPECT REAR BUMPER SURFACE • Visually inspect the rear bumper surface for the following: ― Dirt ― Adhered foreign matter (reflective object) • Is the rear bumper normal? | Yes | Go to the next step.
No | Remove dirt or foreign matter (reflective object), then go to Step 4.
2 | INSPECT AREA AROUND BSM CONTROL MODULE • Visually inspect the area around the BSM control module for the following: ― Dirt ― Adhered foreign matter (reflective object) • Is the area around the BSM control module normal? | Yes | Go to the next step.
No | Remove dirt or foreign matter (reflective object), then go to Step 4.
3 | VERIFY REAR BUMPER REPAIR HISTORY • Verify if the rear bumper had been repaired or repainted before. • Is the paint Mazda genuine? | Yes | Go to the next step.
No | Replace the rear bumper, then go to the next step. (See REAR BUMPER REMOVAL/INSTALLATION.)
4 | VERIFY THAT REPAIRS HAVE BEEN COMPLETED • Clear the DTC for the BSM control module using the M-MDS. (See CLEARING DTC [BLIND SPOT MONITORING (BSM) CONTROL MODULE CONNECTOR 10-PIN TYPE].) • Retrieve the BSM control module DTCs using the M-MDS. (See DTC INSPECTION [BLIND SPOT MONITORING (BSM) CONTROL MODULE CONNECTOR 10-PIN TYPE].) • Is the same DTC displayed? | Yes | Repeat the inspection from Step 1. • If the malfunction recurs, replace the BSM control module. (See BLIND SPOT MONITORING (BSM) CONTROL MODULE REMOVAL/INSTALLATION [BLIND SPOT MONITORING (BSM) CONTROL MODULE CONNECTOR 10-PIN TYPE].) Go to the next step.
No | Go to the next step.
5 | VERIFY IF OTHER DTCs DISPLAYED • Are any other DTCs displayed? | Yes | Repair or replace the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [BLIND SPOT MONITORING (BSM) CONTROL MODULE CONNECTOR 10-PIN TYPE].)
No | DTC troubleshooting completed.