Honda HR-V: DTC Troubleshooting 12-120, 14-120, 16-120, 18-120: Wheel Speed Sensor Circuit Malfunction
NOTE: Before you troubleshoot, review the general troubleshooting information.
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1. Problem verification:
- Turn the vehicle to the ON mode.
- Clear the DTC with the HDS.
- Turn the vehicle to the OFF (LOCK) mode.
- Test-drive the vehicle.
NOTE: Drive the vehicle on the road, not on a lift.
- Check for DTCs with the HDS.
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Is DTC 12-120, 14-120, 16-120, or 18-120 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.
2. Shorted wire check (Wheel speed sensor lines to power):
- Turn the vehicle to the OFF (LOCK) mode.
- Disconnect the following connector.
VSA modulator-control unit 21P connector
- Turn the vehicle to the ON mode.
- Measure the voltage between body ground and the appropriate wheel speed sensor +B terminals of the VSA modulator-control unit 21P connector individually (see table).
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Is there 0.1 V or more?
YES
Repair a short to power in the wires between the appropriate wheel speed sensor and the VSA modulator-control unit.
NO
The wheel speed sensor wires are not shorted to power. Go to step 3.
3. Wheel speed sensor check (substitution):
- Turn the vehicle to the OFF (LOCK) mode.
- Reconnect the following connector.
VSA modulator-control unit 21P connector
- Substitute a known-good wheel speed sensor.
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- Turn the vehicle to the ON mode.
- Clear the DTC with the HDS.
- Turn the vehicle to the OFF (LOCK) mode.
- Test-drive the vehicle.
NOTE: Drive the vehicle on the road, not on a lift.
- Check for DTCs with the HDS.
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Is DTC 12-120, 14-120, 16-120, or 18-120 indicated?
YES
Go to step 4.
NO
Replace the original wheel speed sensor.
4. VSA modulator-control unit check (update):
- Update the VSA modulator-control unit if it does not have the latest software.
- Turn the vehicle to the OFF (LOCK) mode.
- Test-drive the vehicle.
NOTE: Drive the vehicle on the road, not on a lift.
- Check for DTCs with the HDS.
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Is DTC 12-120, 14-120, 16-120, or 18-120 indicated?
YES
Check for loose terminals in the VSA modulator-control unit 21P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit.
NO
Troubleshooting is complete. If any other DTCs are indicated, go to the indicated DTCs troubleshooting.
READ NEXT:
DTC Troubleshooting 12-13, 14-13, 16-13, 18-13: Wheel Speed Sensor
Installation Error
NOTE: Before you troubleshoot, review the general troubleshooting
information.
1. Wheel speed sensor performance check:
Test-drive the vehicle in a straight line at 6 mph (10 km/h) or more.
NOTE:
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NOTE: Before you troubleshoot, review the general troubleshooting
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1. Problem verification:
Turn the vehicle to the ON mode.
Clear the DTC with the HDS.
Turn the vehicle to the OFF (
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NOTE:
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