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Home >> Mazda >> 2023 >> CX-5 Turbo >> Repair and Diagnosis >> Brakes >> Parking Brake System >> On-Board Diagnostic - Electric Parking Brake >> DTC U3001-04: Electric Parking Brake Control Module Internal Malfunction [Electric Parking Brake Control Module] >> Diagnostic Procedure

Diagnostic Procedure

DTC U3001:04 (ELECTRIC PARKING BRAKE CONTROL MODULE) DIAGNOSTIC PROCEDURE

Step Inspection Results Action
1 VERIFY IF THE ELECTRIC PARKING BRAKE WARNING LIGHT IS TURNED ON 
  • Verify if the electric parking brake warning light is turned on.
  • Is the electric parking brake warning light turned on?
Yes Go to the next step.
No Replace the electric parking brake control module, then go to the next step. (See ELECTRIC PARKING BRAKE CONTROL MODULE REMOVAL/INSTALLATION .)
2 VERIFY IF MALFUNCTIONING LOCATION IS ELECTRIC PARKING BRAKE CONTROL MODULE DEPENDING ON REPEATABILITY  Yes Replace the electric parking brake control module, then go to the next step. (See ELECTRIC PARKING BRAKE CONTROL MODULE REMOVAL/INSTALLATION .)
No Go to the next step.
3 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 [ELECTRIC PARKING BRAKE CONTROL MODULE] .)
No DTC troubleshooting completed.