DTC C0031:01/C0034:01/C0037:01/C003A:01 [DYNAMIC STABILITY CONTROL (DSC)]

id0402b2877300

DTC

C0031:01

C0034:01

C0037:01

C003A:01

LF ABS wheel-speed sensor

RF ABS wheel-speed sensor

LR ABS wheel-speed sensor

RR ABS wheel-speed sensor

DETECTION CONDITION

•  Open circuit or short to ground has been detected in the ABS wheel-speed sensor wiring harness on any of the four vehicle wheels.

POSSIBLE CAUSE

•  Open circuit or short to ground in the wiring harness between the following DSC HU/CM terminals and ABS wheel-speed sensor terminals:

―  DSC HU/CM terminal AP—RF ABS wheel-speed sensor terminal A

―  DSC HU/CM terminal AS—RF ABS wheel-speed sensor terminal B

―  DSC HU/CM terminal I—LF ABS wheel-speed sensor terminal A

―  DSC HU/CM terminal F—LF ABS wheel-speed sensor terminal B

―  DSC HU/CM terminal O—RR ABS wheel-speed sensor terminal A

―  DSC HU/CM terminal R—RR ABS wheel-speed sensor terminal B

―  DSC HU/CM terminal AJ—LR ABS wheel-speed sensor terminal A

―  DSC HU/CM terminal AG—LR ABS wheel-speed sensor terminal B

•  Malfunction in the ABS wheel-speed sensor

•  Poor connection at connectors (female terminal)

Diagnostic procedure

STEP	INSPECTION		ACTION
1	INSPECT ABS WHEEL-SPEED SENSOR FOR SHORT TO GROUND • Turn the ignition switch to the LOCK position. • 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.
1		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 4.
2		No	Replace the ABS wheel-speed sensor, then go to Step 4. (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.
3		No	Replace the ABS wheel-speed sensor, then go to the next step. (See FRONT ABS WHEEL-SPEED SENSOR REMOVAL/INSTALLATION.) (See REAR ABS WHEEL-SPEED SENSOR REMOVAL/INSTALLATION.)
4	VERIFY THAT THE SAME DTC IS NOT PRESENT • Reconnect all disconnected connectors. • Clear the DTCs from the memory. (See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)].) • Are the same DTCs present?	Yes	Repeat the inspection from Step 1. If the malfunction recurs, replace the DSC CM, then go to the next step. (See DSC HU/CM REMOVAL/INSTALLATION [L.H.D.].) (See DSC HU/CM REMOVAL/INSTALLATION [R.H.D.].)
4		No	Go to the next step.
5	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)].)
5		No	DTC troubleshooting completed.

DTC	C0031:01 C0034:01 C0037:01 C003A:01		LF ABS wheel-speed sensor RF ABS wheel-speed sensor LR ABS wheel-speed sensor RR ABS wheel-speed sensor
DETECTION CONDITION		• Open circuit or short to ground has been detected in the ABS wheel-speed sensor wiring harness on any of the four vehicle wheels.
POSSIBLE CAUSE		• Open circuit or short to ground in the wiring harness between the following DSC HU/CM terminals and ABS wheel-speed sensor terminals: ― DSC HU/CM terminal AP—RF ABS wheel-speed sensor terminal A ― DSC HU/CM terminal AS—RF ABS wheel-speed sensor terminal B ― DSC HU/CM terminal I—LF ABS wheel-speed sensor terminal A ― DSC HU/CM terminal F—LF ABS wheel-speed sensor terminal B ― DSC HU/CM terminal O—RR ABS wheel-speed sensor terminal A ― DSC HU/CM terminal R—RR ABS wheel-speed sensor terminal B ― DSC HU/CM terminal AJ—LR ABS wheel-speed sensor terminal A ― DSC HU/CM terminal AG—LR ABS wheel-speed sensor terminal B • Malfunction in the ABS wheel-speed sensor • Poor connection at connectors (female terminal)