DTC C0031:01/C0031:13/C0034:01/C0034:13/C0037:01/C0037:13/C003A:01/C003A:13 [DYNAMIC STABILITY CONTROL (DSC)]

id0402b2879700

DTC
C0031:01/C0031:13
LF ABS wheel-speed sensor
C0034:01/C0034:13
RF ABS wheel-speed sensor
C0037:01/C0037:13
LR ABS wheel-speed sensor
C003A:01/C003A:13
RR ABS wheel-speed sensor
DETECTION CONDITION
•  C0031:01/C0034:01/C0037:01/C003A:01
―  Short to ground has been detected in the ABS wheel-speed sensor wiring harness on any of the four vehicle wheels.
•  C0031:13/C0034:13/C0037:13/C003A:13
―  Open circuit has been detected in the ABS wheel-speed sensor wiring harness on any of the four vehicle wheels.
FAIL-SAFE FUNCTION
•  Refer to “Fail-safe Function Malfunction Contents”. (See DTC TABLE [DYNAMIC STABILITY CONTROL (DSC)].)
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 R—RF ABS wheel-speed sensor terminal A
―  DSC HU/CM terminal O—RF ABS wheel-speed sensor terminal B
―  DSC HU/CM terminal S—LF ABS wheel-speed sensor terminal A
―  DSC HU/CM terminal P—LF ABS wheel-speed sensor terminal B
―  DSC HU/CM terminal M—RR ABS wheel-speed sensor terminal B
―  DSC HU/CM terminal J—RR ABS wheel-speed sensor terminal D
―  DSC HU/CM terminal L—LR ABS wheel-speed sensor terminal B
―  DSC HU/CM terminal I—LR ABS wheel-speed sensor terminal D
•  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 connector.
•  Inspect for continuity between the following DSC HU/CM connector terminals (vehicle harness-side) and body ground:
―  RF ABS wheel-speed sensor(+): R
―  RF ABS wheel-speed sensor(-): O
―  LF ABS wheel-speed sensor(+): S
―  LF ABS wheel-speed sensor(-): P
―  RR ABS wheel-speed sensor(+): M
―  RR ABS wheel-speed sensor(-): J
―  LR ABS wheel-speed sensor(+): L
―  LR ABS wheel-speed sensor(-): I
•  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(+): R
―  RF ABS wheel-speed sensor(-): O
―  LF ABS wheel-speed sensor(+): S
―  LF ABS wheel-speed sensor(-): P
―  RR ABS wheel-speed sensor(+): M
―  RR ABS wheel-speed sensor(-): J
―  LR ABS wheel-speed sensor(+): L
―  LR ABS wheel-speed sensor(-): I
•  Is there continuity?
Yes
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(+): R—A
•  RF ABS wheel-speed sensor(-): O—B
•  LF ABS wheel-speed sensor(+): S—A
•  LF ABS wheel-speed sensor(-): P—B
•  RR ABS wheel-speed sensor(+): M—B
•  RR ABS wheel-speed sensor(-): J—D
•  LR ABS wheel-speed sensor(+): L—B
•  LR ABS wheel-speed sensor(-): I—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.
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 connector terminals (vehicle harness-side) and the following vehicle harness-side connector terminals of the ABS wheel-speed sensors:
―  RF ABS wheel-speed sensor(+): R—A
―  RF ABS wheel-speed sensor(-): O—B
―  LF ABS wheel-speed sensor(+): S—A
―  LF ABS wheel-speed sensor(-): P—B
―  RR ABS wheel-speed sensor(+): M—B
―  RR ABS wheel-speed sensor(-): J—D
―  LR ABS wheel-speed sensor(+): L—B
―  LR ABS wheel-speed sensor(-): I—D
•  Is there continuity?
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(+): R—A
•  RF ABS wheel-speed sensor(-): O—B
•  LF ABS wheel-speed sensor(+): S—A
•  LF ABS wheel-speed sensor(-): P—B
•  RR ABS wheel-speed sensor(+): M—B
•  RR ABS wheel-speed sensor(-): J—D
•  LR ABS wheel-speed sensor(+): L—B
•  LR ABS wheel-speed sensor(-): I—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 an open circuit.
•  Repair or replace the malfunctioning part.
If there is no common connector:
•  Repair or replace the wiring harness which has an open circuit.
Go to the Step 5.
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(+): R
―  RF ABS wheel-speed sensor(-): O
―  LF ABS wheel-speed sensor(+): S
―  LF ABS wheel-speed sensor(-): P
―  RR ABS wheel-speed sensor(+): M
―  RR ABS wheel-speed sensor(-): J
―  LR ABS wheel-speed sensor(+): L
―  LR ABS wheel-speed sensor(-): I
•  Is the voltage 1 V or less?
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(+): R—A
•  RF ABS wheel-speed sensor(-): O—B
•  LF ABS wheel-speed sensor(+): S—A
•  LF ABS wheel-speed sensor(-): P—B
•  RR ABS wheel-speed sensor(+): M—B
•  RR ABS wheel-speed sensor(-): J—D
•  LR ABS wheel-speed sensor(+): L—B
•  LR ABS wheel-speed sensor(-): I—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 power supply.
•  Repair or replace the malfunctioning part.
If there is no common connector:
•  Repair or replace the wiring harness which has a short to power supply.
Go to the next step.
5
VERIFY DTC TROUBLESHOOTING COMPLETED
•  Using the M-MDS, clear the DTC from the DSC HU/CM.
•  Using the M-MDS, perform the DSC HU/CM DTC inspection.
•  Is the same DTC present?
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.