DTC C0031:11/C0031:15/C0034:11/C0034:15/C0037:11/C0037:15/C003A:11/C003A:15 [DYNAMIC STABILITY CONTROL (DSC)]

id0402b2180700

DTC

C0031:11, C0031:15

LF ABS wheel-speed sensor

C0034:11, C0034:15

RF ABS wheel-speed sensor

C0037:11, C0037:15

LR ABS wheel-speed sensor

C003A:11, C003A:15

RR ABS wheel-speed sensor

DETECTION CONDITION

•  C0031:11, C0034:11, C0037:11, C003A:11

―  Short to ground has been detected in the ABS wheel-speed sensor wiring harness on any of the four vehicle wheels.

•  C0031:15, C0034:15, C0037:15, C003A:15

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

FAIL-SAFE FUNCTION

Refer to “DTC Table” and “Fail-safe Function Malfunction Contents”. (See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)].)

POSSIBLE CAUSE

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

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

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

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

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

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

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

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

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

•  Malfunction in the ABS wheel-speed sensor

•  DSC HU/CM malfunction

•  Poor connection at connectors (female terminal)

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 (+): F ― RF ABS wheel-speed sensor (-): C ― LF ABS wheel-speed sensor (+): AG ― LF ABS wheel-speed sensor (-): AJ ― RR ABS wheel-speed sensor (+): AA ― RR ABS wheel-speed sensor (-): X ― LR ABS wheel-speed sensor (+): L ― LR ABS wheel-speed sensor (-): O • 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 (+): F ― RF ABS wheel-speed sensor (-): C ― LF ABS wheel-speed sensor (+): AG ― LF ABS wheel-speed sensor (-): AJ ― RR ABS wheel-speed sensor (+): AA ― RR ABS wheel-speed sensor (-): X ― LR ABS wheel-speed sensor (+): L ― LR ABS wheel-speed sensor (-): O • Is there continuity?	Yes	Repair or replace the wiring harness, then go to Step 5.
2		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 [2WD].) (See REAR ABS WHEEL-SPEED SENSOR REMOVAL/INSTALLATION [4WD].)
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 (+): F—A ― RF ABS wheel-speed sensor (-): C—B ― LF ABS wheel-speed sensor (+): AG—A ― LF ABS wheel-speed sensor (-): AJ—B ― RR ABS wheel-speed sensor (+): AA—A ― RR ABS wheel-speed sensor (-): X—B ― LR ABS wheel-speed sensor (+): L—A ― LR ABS wheel-speed sensor (-): O—B • Is there continuity?	Yes	Go to the next step.
3		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 (+): F ― RF ABS wheel-speed sensor (-): C ― LF ABS wheel-speed sensor (+): AG ― LF ABS wheel-speed sensor (-): AJ ― RR ABS wheel-speed sensor (+): AA ― RR ABS wheel-speed sensor (-): X ― LR ABS wheel-speed sensor (+): L ― LR ABS wheel-speed sensor (-): O • Is the voltage 1 V or less?	Yes	Go to the next step.
4		No	Repair or replace the wiring harness, then go to the next step.
5	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 HU/CM, then go to the next step. (See DSC HU/CM REMOVAL/INSTALLATION.)
5		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)].)
6		No	DTC troubleshooting completed.

DTC	C0031:11, C0031:15		LF ABS wheel-speed sensor
	C0034:11, C0034:15		RF ABS wheel-speed sensor
	C0037:11, C0037:15		LR ABS wheel-speed sensor
	C003A:11, C003A:15		RR ABS wheel-speed sensor
DETECTION CONDITION		• C0031:11, C0034:11, C0037:11, C003A:11 ― Short to ground has been detected in the ABS wheel-speed sensor wiring harness on any of the four vehicle wheels. • C0031:15, C0034:15, C0037:15, C003A:15 ― Open circuit or short to power supply has been detected in the ABS wheel-speed sensor wiring harness on any of the four vehicle wheels.
FAIL-SAFE FUNCTION		Refer to “DTC Table” and “Fail-safe Function Malfunction Contents”. (See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)].)
POSSIBLE CAUSE		• Open circuit or short to ground/power supply in the wiring harness between the following DSC HU/CM terminals and ABS wheel-speed sensor terminals: ― DSC HU/CM terminal F—RF ABS wheel-speed sensor terminal A ― DSC HU/CM terminal C—RF ABS wheel-speed sensor terminal B ― DSC HU/CM terminal AG—LF ABS wheel-speed sensor terminal A ― DSC HU/CM terminal AJ—LF ABS wheel-speed sensor terminal B ― DSC HU/CM terminal AA—RR ABS wheel-speed sensor terminal A ― DSC HU/CM terminal X—RR ABS wheel-speed sensor terminal B ― DSC HU/CM terminal L—LR ABS wheel-speed sensor terminal A ― DSC HU/CM terminal O—LR ABS wheel-speed sensor terminal B • Malfunction in the ABS wheel-speed sensor • DSC HU/CM malfunction • Poor connection at connectors (female terminal)