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Home >> Mazda >> 2023 >> 3 Select, 4D Hatchback >> Repair and Diagnosis >> Brakes >> Traction Control >> On-Board Diagnostic - Dynamic Stability Control (2 Of 2) >> DTC U3003-68: Power Supply System [DSC HU/Control Module] >> Outline

DTC U3003-68: Power Supply System [DSC HU/Control Module]: Outline

DTC U3003:68 (DSC HU/Control Module) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location Power supply system
Detection condition
  • The DSC HU/Control Module shuts down while the electric parking brake motor gear unit is operating.
Fail-safe Refer to "DTC Table" and "Fail-safe Function Malfunction Contents Table". (See DTC TABLE [DSC HU/Control Module (US)] .)
Possible cause
  • DTCs are stored in the PCM.
  • Battery malfunction
  • Generator malfunction
  • DSC HU/Control Module connector or terminals malfunction
  • Short to ground or open circuit in DSC HU/Control Module power supply circuit
  • Open circuit in DSC HU/Control Module ground circuit
  • DSC HU/Control Module malfunction
G15737126Courtesy of MAZDA MOTORS CORP.