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Home >> Mazda >> 2013 >> 5 Grand Touring >> Repair and Diagnosis >> Brakes >> Traction Control >> On-Board Diagnostic [Abs/Dynamic Stability Control System) >> DTC C0020:01/C0020:1C/C0020:71 [Dynamic Stability Control (DSC)] >> Notes

DTC C0020:01/C0020:1C/C0020:71 [Dynamic Stability Control (DSC)]: Notes

DTC C0020:01, C0020:1C, C0020:71 Pump motor, motor relay
DETECTION CONDITION 
  • C0020:01
    • DSC motor relay signal does not correspond to DSC HU/CM ON signal.
  • C0020:1C
    • DSC motor monitor signal does not correspond to DSC HU/CM OFF signal.
    • DSC motor monitor signal does not correspond to DSC HU/CM ON signal.
  • C0020:71
    • DSC HU/CM motor monitor ON signal is not input within specified time limit or more when motor signal is switched from ON to OFF by DSC HU/CM.
FAIL-SAFE FUNCTION 
  • Illuminates the ABS warning light and TCS/DSC indicator light.
  • Inhibits the ABS, TCS, DSC and brake assist controls.
POSSIBLE CAUSE 
  • ABS P 40A fuse malfunction
  • Open or short circuit in DSC HU/CM internal motor relay, or stuck motor relay
  • Open or short circuit in DSC HU/CM internal pump motor, or frozen pump motor
  • Open circuit or short to ground in the wiring harness between the battery and DSC HU/CM terminal AT
  • Open circuit in the wiring harness between DSC HU/CM terminal B and body ground
  • Poor connection at connectors (female terminal)
G08150583