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Home >> Mazda >> 2016 >> 6 Touring, Standard Trans >> Repair and Diagnosis (Single Page) >> Brakes >> Traction Control >> On-Board Diagnostics [Dynamic Stability Control] >> DTC C0031-23; C0031-27; C0034-23; C0034-27; C0037-23; C0037-27; C0037-62; C003A-23; C003A-27; C003A-62: Abs Wheel-Speed Sensor >> Diagnostic procedure

Diagnostic procedure

STEP INSPECTION ACTION
1 INSPECT PID FOR ABS WHEEL-SPEED SENSOR OUTPUT ERROR USING M-MDS 
  • Switch the ignition to off.
  • Connect the M-MDS to the DLC-2.
  • Select the following PIDs using the M-MDS:
    • WSPD_SEN_LF
    • WSPD_SEN_LR
    • WSPD_SEN_RF
    • WSPD_SEN_RR
  • Drive the vehicle.
  • Verify that the vehicle speeds detected by the four ABS wheel-speed sensors are approximately the same.
  • Are the vehicle speeds approximately the same?
Yes Go to Step 3.
No Go to the next step.
2 INSPECT FOR SHORT TO GROUND BETWEEN ABS WHEEL-SPEED SENSOR CONNECTORS AND GROUND 
  • Disconnect the ABS wheel-speed sensor connectors.
  • Inspect for no continuity between the following ABS wheel-speed sensor connector terminals (vehicle harness-side) and body ground:
    • ABS wheel-speed sensor (RF): A- Body ground
    • ABS wheel-speed sensor (LF): A- Body ground
    • ABS wheel-speed sensor (RR): A- Body ground
    • ABS wheel-speed sensor (LR): A- Body ground
  • Is the continuity normal?
Yes Go to the next step.
No Refer to the wiring diagram and verify whether or not there is a common connector between the DSC HU/CM connector terminals (vehicle harness-side) and the following vehicle harness-side connector terminals of the ABS wheel-speed sensors:
  • RF ABS wheel-speed sensor(-): O-A
  • LF ABS wheel-speed sensor(-): P-A
  • RR ABS wheel-speed sensor(-): J-A
  • LR ABS wheel-speed sensor(-): I-A

If there is a common connector: 

  • Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground.
  • Repair or replace the malfunctioning part.

If there is no common connector: 

  • Repair or replace the wiring harness which has a short to ground.

Go to Step 5.
3 INSPECT IF MALFUNCTION OCCURRED DUE TO IMPROPER SENSOR CLEARANCE. 
Yes Go to the next step.
No Replace the ABS wheel-speed sensor, then go to step 5.
(See FRONT ABS WHEEL-SPEED SENSOR REMOVAL/INSTALLATION .)
(See REAR ABS WHEEL-SPEED SENSOR REMOVAL/INSTALLATION .)
4 VISUALLY INSPECT ABS SENSOR ROTOR FOR FOREIGN MATERIAL ADHERING OR IMPROPER INSTALLATION 
  • Is the result normal?
Yes Go to the next step.
No Replace the wheel hub component, then go to next step.
(See WHEEL HUB, STEERING KNUCKLE REMOVAL/INSTALLATION .)
(See WHEEL HUB COMPONENT REMOVAL/INSTALLATION .)
5 VERIFY DTC TROUBLESHOOTING COMPLETED 
Yes Repeat the inspection from Step1.
If the malfunction recurs, replace the DSC HU/CM, then go to the next step.
(See DSC HU/CM REMOVAL/INSTALLATION .)
No Go to the next step.
6 VERIFY NO DTC IS PRESENT 
  • Are any DTCs present?
Yes Go to the applicable DTC inspection.
(See DTC TABLE [DYNAMIC STABILITY CONTROL (DSC)] .)
No DTC troubleshooting completed.