DTC C0031-14, C0034-14, C0037-14, C003A-14
DTC C0031-14 : Left Front Wheel Speed Sensor Circuit Failure (Circuit Short To Ground or Open)DTC C0034-14 : Right Front Wheel Speed Sensor Circuit Failure (Circuit Short To Ground or Open)DTC C0037-14 : Left Rear Wheel Speed Sensor Circuit Failure (Circuit Short To Ground or Open)DTC C003A-14 : Right Rear Wheel Speed Sensor Circuit Failure (Circuit Short To Ground or Open)
NOTE: Before you troubleshoot, review the general troubleshooting information .
| DTC Description | DTC |
|---|---|
| C0031-14 Left Front Wheel Speed sensor Circuit Failure (Circuit Short To Ground or Open) | |
| C0034-14 Right Front Wheel Speed sensor Circuit Failure (Circuit Short To Ground or Open) | |
| C0037-14 Left Rear Wheel Speed Sensor Circuit Failure (Circuit Short To Ground or Open) | |
| C003A-14 Right Rear Wheel Speed Sensor Circuit Failure (Circuit Short To Ground or Open) |
DTC (VSA)
- Problem verification
-1. Turn the vehicle to the ON mode.
-2. Clear the DTC with the HDS.
-3. Turn the vehicle to the OFF (LOCK) mode.
-4. Test-drive the vehicle on the road in a straight line at 19 mph (30km/h) or more.
NOTE: Drive the vehicle on the road, not on a lift.
-5. Check for DTCs with the HDS.
DTC Description DTC C0031-14 Left Front Wheel Speed sensor Circuit Failure (Circuit Short To Ground or Open) C0034-14 Right Front Wheel Speed sensor Circuit Failure (Circuit Short To Ground or Open) C0037-14 Left Rear Wheel Speed Sensor Circuit Failure (Circuit Short To Ground or Open) C003A-14 Right Rear Wheel Speed Sensor Circuit Failure (Circuit Short To Ground or Open) Is DTC C0031-14, C0034-14, C0037-14, or C003A-14 indicated?
YES
The failure is duplicated. Go to step 2.
NO
Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting .
- Shorted wire check (SNSR+, SNSR- lines to ground)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Disconnect the following connector.
VSA modulator-control unit 46P connector -3. Check for continuity between body ground and the appropriate wheel speed sensor terminals of the VSA modulator-control unit 46P connector individually (see table).
Test condition Vehicle OFF (LOCK) mode VSA modulator-control unit 46P connector: disconnected DTC VSA modulator-control unit 46P connector SNSR+ SNSR- C0031-14Left-front No. 44 No. 43 C0034-14Right-front No. 40 No. 39 C0037-14Left-rear No. 42 No. 41 C003A-14Right-rear No. 46 No. 45 Is there continuity?
YES
The SNSR+ or SNSR- wires are shorted to body ground. Go to step 3.
NO
The SNSR+ and SNSR- wires are not shorted to body ground. Go to step 4.
- Wheel speed sensor (s) check
-1. Disconnect the following connectors.
Appropriate wheel speed sensor 2P connector (front) *1 Appropriate wheel speed sensor 4P connector (front) *2 Appropriate wheel speed sensor 4P connector (rear) *1: Without adaptive damper system
*2: With adaptive damper system
-2. On the sensor side, check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode VSA modulator-control unit 46P connector: disconnected Appropriate wheel speed sensor 2P connector (front) *1: disconnected Appropriate wheel speed sensor 4P connector (front) *2: disconnected Appropriate wheel speed sensor 4P connector (rear): disconnected Test point 1 Appropriate wheel speed sensor 2P connector (male terminals) No. 1 *1: Appropriate wheel speed sensor 4P connector (male terminals) No. 2 *2: Appropriate wheel speed sensor 4P connector (male terminals) No. 3: Test point 2 Body ground Test point 1 Appropriate wheel speed sensor 2P connector (male terminals) No. 2 *1: Appropriate wheel speed sensor 4P connector (male terminals) No. 1 *2: Appropriate wheel speed sensor 4P connector (male terminals) No. 4: Test point 2 Body ground *1: Without adaptive damper system
*2: With adaptive damper system
Front: Without adaptive damper system
Front: With adaptive damper system
Rear
Is there continuity?
YES
The SNSR+ and SNSR- wires are not shorted to body ground. Replace the appropriate wheel speed sensor .
NO
Repair a short to body ground in the wire between the VSA modulator-control unit and the wheel speed sensor.
- Shorted wire check (SNSR+, SNSR- lines to power)
-1. Turn the vehicle to the ON mode.
-2. Measure the voltage between body ground and the appropriate wheel speed sensor terminals of the VSA modulator-control unit 46P connector individually (see table).
Test condition Vehicle ON mode VSA modulator-control unit 46P connector: disconnected DTC VSA modulator-control unit 46P connector SNSR+ SNSR- C0031-14Left-front No. 44 No. 43 C0034-14Right-front No. 40 No. 39 C0037-14Left-rear No. 42 No. 41 C003A-14Right-rear No. 46 No. 45 Is there 0.1 V or more?
YES
The SNSR+ or SNSR- wires are shorted to power. Go to step 5.
NO
The SNSR+ and SNSR- wires are not shorted to power. Go to step 6.
- Wheel speed sensor (s) check
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Disconnect the following connectors.
Appropriate wheel speed sensor 2P connector (front) *1 Appropriate wheel speed sensor 4P connector (front) *2 Appropriate wheel speed sensor 4P connector (rear) *1: Without adaptive damper system
*2: With adaptive damper system
-3. Turn the vehicle to the ON mode.
-4. On the sensor side, measure the voltage between test points 1 and 2.
Test condition Vehicle ON mode VSA modulator-control unit 46P connector: disconnected Appropriate wheel speed sensor 2P connector (front) *1: disconnected Appropriate wheel speed sensor 4P connector (front) *2: disconnected Appropriate wheel speed sensor 4P connector (rear): disconnected Test point 1 Appropriate wheel speed sensor 2P connector (male terminals) No. 1 *1: Appropriate wheel speed sensor 4P connector (male terminals) No. 2 *2: Appropriate wheel speed sensor 4P connector (male terminals) No. 3: Test point 2 Body ground Test point 1 Appropriate wheel speed sensor 2P connector (male terminals) No. 2 *1: Appropriate wheel speed sensor 4P connector (male terminals) No. 1 *2: Appropriate wheel speed sensor 4P connector (male terminals) No. 4: Test point 2 Body ground *1: Without adaptive damper system
*2: With adaptive damper system
Front: Without adaptive damper system
Front: With adaptive damper system
Rear
Is there 0.1 V or more?
YES
The SNSR+ and SNSR- wires are not shorted to power. Replace the appropriate wheel speed sensor .
NO
Repair a short to power in the wire between the VSA modulator-control unit and the appropriate wheel speed sensor.
- Shorted wire check (SNSR+, SNSR- lines wire to wire)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Disconnect the following connectors.
Appropriate wheel speed sensor 2P connector (front) *1 Appropriate wheel speed sensor 4P connector (front) *2 Appropriate wheel speed sensor 4P connector (rear) *1: Without adaptive damper system
*2: With adaptive damper system
-3. Check for continuity between the appropriate VSA modulator-control unit 46P connector wheel speed sensor terminals (see table).
Test condition Vehicle OFF (LOCK) mode VSA modulator-control unit 46P connector: disconnected Appropriate wheel speed sensor 2P connector (front) *1: disconnected Appropriate wheel speed sensor 4P connector (front) *2: disconnected Appropriate wheel speed sensor 4P connector (rear): disconnected *1: Without adaptive damper system
*2: With adaptive damper system
DTC VSA modulator-control unit 46P connector SNSR+ SNSR- C0031-14Left-front No. 44 No. 43 C0034-14Right-front No. 40 No. 39 C0037-14Left-rear No. 42 No. 41 C003A-14Right-rear No. 46 No. 45 Is there continuity?
YES
Repair a short in the wires between the appropriate wheel speed sensor and the VSA modulator-control unit.
NO
The SNSR+, SNSR- wires are not shorted in the wires. Go to step 7.
- Open wire check (SNSR+ lines)
-1. Check for continuity between the appropriate VSA modulator-control unit 46P connector terminal and the appropriate wheel speed sensor 2P connector terminal (front) or appropriate wheel speed sensor 4P connector terminal (rear) (see table).
Test condition Vehicle OFF (LOCK) mode VSA modulator-control unit 46P connector: disconnected Appropriate wheel speed sensor 2P connector (front) *1: disconnected Appropriate wheel speed sensor 4P connector (front) *2: disconnected Appropriate wheel speed sensor 4P connector (rear): disconnected DTC VSA Modulator-Control Unit 46P Connector Terminal Appropriate Wheel Speed Sensor Connector Terminal C0031-14 No. 44 Left-front wheel speed sensor 2P connector (female terminals) No. 1 *1: Left-front wheel speed sensor 4P connector (female terminals) No. 2 *2:
C0034-14 No. 40 Right-front wheel speed sensor 2P connector (female terminals) No. 1 *1: Right-front wheel speed sensor 4P connector (female terminals) No. 2 *2:
C0037-14 No. 42 Left-rear wheel speed sensor 4P connector (female terminals) No. 3: C003A-14 No. 46 Right-rear wheel speed sensor 4P connector (female terminals) No. 3: *1: Without adaptive damper system
*2: With adaptive damper system
Front: Without adaptive damper system
Front: With adaptive damper system
Rear
Is there continuity?
YES
Go to step 8.
NO
Repair an open in the wire between the appropriate wheel speed sensor and the VSA modulator-control unit.
- Open wire check (SNSR- lines)
-1. Check for continuity between the appropriate VSA modulator-control unit 46P connector terminal and the appropriate wheel speed sensor 2P connector terminal (front) or appropriate wheel speed sensor 4P connector terminal (rear) (see table).
Test condition Vehicle OFF (LOCK) mode VSA modulator-control unit 46P connector: disconnected Appropriate wheel speed sensor 2P connector (front) *1: disconnected Appropriate wheel speed sensor 4P connector (front) *2: disconnected Appropriate wheel speed sensor 4P connector (rear): disconnected DTC VSA Modulator-Control Unit 46P Connector Terminal Appropriate Wheel Speed Sensor Connector Terminal C0031-14 No. 43 Left-front wheel speed sensor 2P connector (female terminals) No. 2 *1: Left-front wheel speed sensor 4P connector (female terminals) No. 1 *2:
C0034-14 No. 39 Right-front wheel speed sensor 2P connector (female terminals) No. 2 *1: Right-front wheel speed sensor 4P connector (female terminals) No. 1 *2:
C0037-14 No. 41 Left-rear wheel speed sensor 4P connector (female terminals) No. 4: C003A-14 No. 45 Right-rear wheel speed sensor 4P connector (female terminals) No. 4: *1: Without adaptive damper system
*2: With adaptive damper system
Front: Without adaptive damper system
Front: With adaptive damper system
Rear
Is there continuity?
YES
The SNSR+, SNSR- wires are OK. Go to step 9.
NO
Repair an open in the wire between the appropriate wheel speed sensor and the VSA modulator-control unit.
- Wheel speed sensor (s) check (substitution)
-1. Substitute a known-good wheel speed sensor .
DTC Appropriate Wheel Speed Sensor C0031-14 Left-front C0034-14 Right-front C0037-14 Left-rear C003A-14 Right-rear -2. Reconnect the following connectors.
VSA modulator-control unit 46P connector Appropriate wheel speed sensor 2P connector (front) *1 Appropriate wheel speed sensor 4P connector (front) *2 Appropriate wheel speed sensor 4P connector (rear) *1: Without adaptive damper system
*2: With adaptive damper system
-3. Turn the vehicle to the ON mode.
-4. Clear the DTC with the HDS.
-5. Turn the vehicle to the OFF (LOCK) mode.
-6. Test-drive the vehicle on the road in a straight line at 19 mph (30km/h) or more.
NOTE: Drive the vehicle on the road, not on a lift.
-7. Check for DTCs with the HDS.
DTC Description DTC C0031-14 Left Front Wheel Speed sensor Circuit Failure (Circuit Short To Ground or Open) C0034-14 Right Front Wheel Speed sensor Circuit Failure (Circuit Short To Ground or Open) C0037-14 Left Rear Wheel Speed Sensor Circuit Failure (Circuit Short To Ground or Open) C003A-14 Right Rear Wheel Speed Sensor Circuit Failure (Circuit Short To Ground or Open) Is DTC C0031-14, C0034-14, C0037-14, or C003A-14 indicated?
YES
Check for loose terminals and poor connections in the VSA modulator-control unit 46P connector. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting. If they are OK, replace the VSA modulator-control unit .
NO