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Home >> Mazda >> 2017 >> CX-5 Grand Select, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 149 (On-Board Diagnostic - Dynamic Stability Control (DSC)) >> DTC C0030-07; C0031-07; C0031-29; C0031-2F; C0031-64; C0033-07; C0034-07; C0034-29; C0034-2F; C0034-64; C0036-07; C0037-07; C0037-29; C0037-2F; C0037-64; C0039-07; C0 03A-07; C003A-29; C003A-2F; C003A-64; Abs Sensor Rotors >> Diagnostic procedure

Diagnostic procedure

WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
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: Without electric parking brake
    • ABS wheel-speed sensor (RF): A-Body ground
    • ABS wheel-speed sensor (LF): A-Body ground
    • ABS wheel-speed sensor (RR): B-Body ground
      • ABS wheel-speed sensor (LR): B-Body ground With electric parking brake
    • ABS wheel-speed sensor (RF): A-Body ground
    • ABS wheel-speed sensor (LF): A-Body ground
    • ABS wheel-speed sensor (RR): D-Body ground
      • ABS wheel-speed sensor (LR): D-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: Without electric parking brake
  • RF ABS wheel-speed sensor(-): C-A
  • LF ABS wheel-speed sensor(-): AJ-A
  • RR ABS wheel-speed sensor(-): X-B
  • LR ABS wheel-speed sensor(-): O-B With electric parking brake
  • RF ABS wheel-speed sensor(-): C-A
  • LF ABS wheel-speed sensor(-): AJ-A
  • RR ABS wheel-speed sensor(-): X-D
  • LR ABS wheel-speed sensor(-): O-D 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 Repair or replace the ABS sensor rotor, then go to the next step.
5 VERIFY THAT THE SAME DTC IS NOT PRESENT Yes Repeat the inspection from Step 1. 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 THAT NO OTHER DTCS ARE PRESENT
  • Are any other DTCs output?
 Yes Go to the applicable DTC inspection.
(See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)] .)
No DTC troubleshooting completed.
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