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Home >> Mazda >> 2023 >> 3 Select, 4D Hatchback >> Repair and Diagnosis >> Brakes >> Traction Control >> On-Board Diagnostic - Dynamic Stability Control (1 Of 2) >> DTC C0034-19: Abs Wheel-Speed Sensor (RF) [DSC HU/Control Module] >> Diagnostic Procedure

Diagnostic Procedure

DTC C0034:19 (DSC HU/Control Module) DIAGNOSTIC PROCEDURE

Step Inspection Results Action
1 INSPECT ABS WHEEL-SPEED SENSOR (RF) CONNECTOR FOR MALFUNCTION 
  • Inspect the applicable connector and terminal. (See CONNECTOR INSPECTION .)
  • Are the connector and terminal normal?
Yes Go to the next step.
No Repair or replace the malfunctioning location and perform the repair completion verification.
2 INSPECT DSC HU/Control Module CONNECTOR FOR MALFUNCTION 
  • Inspect the applicable connector and terminal. (See CONNECTOR INSPECTION .)
  • Are the connector and terminal normal?
Yes Go to the next step.
No Repair or replace the malfunctioning location and perform the repair completion verification.
3 INSPECT ABS WHEEL-SPEED SENSOR (RF) SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY 
  • Inspect the applicable circuit for a short to power supply. (See CIRCUIT INSPECTION .)
  • Is the circuit normal?
Yes Go to the next step.
No Repair or replace the malfunctioning location and perform the repair completion verification.
4 INSPECT ABS WHEEL-SPEED SENSOR (LR) FOR MALFUNCTION 
Yes Go to the next step.
No Repair or replace the malfunctioning location and perform the repair completion verification. (See FRONT ABS WHEEL-SPEED SENSOR REMOVAL/INSTALLATION .)
Repair completion verification 1 VERIFY THAT VEHICLE IS REPAIRED 
  • Install/connect the part removed/disconnected during the troubleshooting procedure.
  • Clear the DTC recorded in the memory. (See CLEARING DTC .)
  • Perform the DTC inspection for the DSC HU/Control Module. (See DTC INSPECTION .)
  • Is the same Pending DTC present?
Yes Refer to the CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW to inspect for a CAN communication error.
(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(US)] .)
If the CAN communication is normal, perform the diagnosis from Step 1.
No Go to the next step.
Repair completion verification 2 VERIFY IF OTHER DTCs DISPLAYED 
  • Perform the DTC inspection. (See DTC INSPECTION .)
  • Are any DTCs displayed?
Yes Repair the malfunctioning location according to the applicable DTC troubleshooting.
No DTC troubleshooting completed.