Honda HR-V Owners & Service Manuals

Honda HR-V: DTC Troubleshooting 26-120: Lateral Acceleration Sensor (Inside of Modulator-Control Unit) Stuck

Honda HR-V (2015-2021) Service Manual / Brakes / VSA System - Diagnostics / DTC Troubleshooting / DTC Troubleshooting 26-120: Lateral Acceleration Sensor (Inside of Modulator-Control Unit) Stuck

NOTE:

  • Before you troubleshoot, review the general troubleshooting information.
  • The yaw rate-acceleration sensor is built into the VSA modulator-control unit.
  • Before troubleshooting, check the VSA modulator-control unit for proper mounting. Improper mounting of the VSA modulator-control unit may set this code.

VSA System - Diagnostics

1. 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 at 6 mph (10 km/h) or more.

NOTE: Drive the vehicle on the road, not on a lift.

  1. Check for DTCs with the HDS.

VSA System - Diagnostics

Is DTC 26-120 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. Lateral acceleration sensor performance check:

  1. Turn the vehicle to the OFF (LOCK) mode.
  2. Test-drive the vehicle.

NOTE: Drive the vehicle on the road, not on a lift.

  1. Check the parameter(s) below with the HDS while driving around corners.

VSA System - Diagnostics

Does the indicated value change?

YES

The system is OK at this time.

NO

Go to step 3.

3. VSA modulator-control unit check (update):

  1. Update the VSA modulator-control unit if it does not have the latest software.
  2. Turn the vehicle to the OFF (LOCK) mode.
  3. Test-drive the vehicle at 6 mph (10 km/h) or more.

NOTE: Drive the vehicle on the road, not on a lift.

  1. Check for DTCs with the HDS.

VSA System - Diagnostics

Is DTC 26-120 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.

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