LEMON Manuals: Even more car manuals for everyone
Home >> Mazda >> 2013 >> 5 Grand Touring >> Repair and Diagnosis >> Brakes >> Traction Control >> On-Board Diagnostic [Abs/Dynamic Stability Control System) >> DTC C0031:11/C0031:15/C0034:11/C0034:15/C0037:11/C0037:15/C003A:11/C003A:15 [Dynamic Stability Control (DSC)] >> Diagnostic Procedure

Diagnostic Procedure

STEP INSPECTION ACTION
1 INSPECT ABS WHEEL-SPEED SENSOR FOR SHORT TO GROUND 
  • Switch the ignition to off.
  • Disconnect the DSC HU/CM connectors.
  • Inspect for continuity between the following DSC HU/CM connector terminals (vehicle harness-side) and body ground:
    • RF ABS wheel-speed sensor (+): AP
    • RF ABS wheel-speed sensor (-): AS
    • LF ABS wheel-speed sensor (+): I
    • LF ABS wheel-speed sensor (-): F
    • RR ABS wheel-speed sensor (+): O
    • RR ABS wheel-speed sensor (-): R
    • LR ABS wheel-speed sensor (+): AJ
    • LR ABS wheel-speed sensor (-): AG
  • Is there continuity?
Yes Go to the next step.
No Go to Step 3.
2 INSPECT ABS WHEEL-SPEED SENSOR WIRING HARNESS FOR SHORT TO GROUND 
  • Disconnect the ABS wheel-speed sensor connectors.
  • Inspect for continuity between the following DSC HU/CM connector terminals (vehicle harness-side) and body ground:
    • RF ABS wheel-speed sensor (+): AP
    • RF ABS wheel-speed sensor (-): AS
    • LF ABS wheel-speed sensor (+): I
    • LF ABS wheel-speed sensor (-): F
    • RR ABS wheel-speed sensor (+): O
    • RR ABS wheel-speed sensor (-): R
    • LR ABS wheel-speed sensor (+): AJ
    • LR ABS wheel-speed sensor (-): AG
  • Is there continuity?
Yes Repair or replace the wiring harness, then go to Step 5.
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 .)
3 INSPECT FOR OPEN CIRCUIT IN ABS WHEEL-SPEED SENSOR WIRING HARNESS 
  • Inspect for continuity between the DSC HU/CM connectors (vehicle harness-side) and the following vehicle harness-side connector terminals of the ABS wheel-speed sensors:
    • RF ABS wheel-speed sensor (+): AP-A
    • RF ABS wheel-speed sensor (-): AS-B
    • LF ABS wheel-speed sensor (+): I-A
    • LF ABS wheel-speed sensor (-): F-B
    • RR ABS wheel-speed sensor (+): O-A
    • RR ABS wheel-speed sensor (-): R-B
    • LR ABS wheel-speed sensor (+): AJ-A
    • LR ABS wheel-speed sensor (-): AG-B
  • Is there continuity?
Yes Go to the next step.
No Repair or replace the wiring harness, then go to the next step.
4 INSPECT ABS WHEEL-SPEED SENSOR WIRING HARNESS FOR SHORT TO POWER SUPPLY 
  • Inspect for voltage between the following DSC HU/CM connector terminals (vehicle harness-side) and body ground:
    • RF ABS wheel-speed sensor (+): AP
    • RF ABS wheel-speed sensor (-): AS
    • LF ABS wheel-speed sensor (+): I
    • LF ABS wheel-speed sensor (-): F
    • RR ABS wheel-speed sensor (+): O
    • RR ABS wheel-speed sensor (-): R
    • LR ABS wheel-speed sensor (+): AJ
    • LR ABS wheel-speed sensor (-): AG
  • Is the voltage 1 V or less  ?
Yes Go to the next step.
No Repair or replace the wiring harness, 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.