Honda HR-V Owners & Service Manuals

Honda HR-V: DTC Troubleshooting 81-13: Modulator-Control Unit Internal Circuit Malfunction

Honda HR-V (2015-2021) Service Manual / Brakes / VSA System - Diagnostics / DTC Troubleshooting / DTC Troubleshooting 81-13: Modulator-Control Unit Internal Circuit Malfunction

NOTE: Before you troubleshoot, review the general troubleshooting information.

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.

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

  1. Check for DTCs with the HDS.

VSA System - Diagnostics

Is DTC 81-13 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. 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.

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

  1. Check for DTCs with the HDS.

VSA System - Diagnostics

Is DTC 81-13 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 81-19: Yaw Rate Sensor (Inside of Modulator-Control Unit) Internal Circuit Malfunction

    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 VS

     DTC Troubleshooting 81-20: Acceleration Sensor (Inside of Modulator-Control Unit) Internal Circuit Malfunction

    NOTE: Before you troubleshoot, review the general troubleshooting information. While doing this troubleshooting, avoid vibration or shaking of the vehicle. The yaw rate-acceleration sensor is bu

     DTC Troubleshooting 83-11, 83-12: PCM (Engine) Malfunction, PCM (AT/CVT) Malfunction

    NOTE: Troubleshoot any PGM-FI, AT or CVT DTCs first. Before you troubleshoot, review the general troubleshooting information. VSA will set 83-11 if any PGM -FI DTC's exist. VSA will set 83-12 if

    SEE MORE:

     Fuel Pressure Test

    Special Tools Required Fuel Pressure Gauge 07406-004000B Fuel Pressure Gauge Attachment Set 07AAJ-S6MA150 Test 1. Fuel Pressure - Relieve 2. Fuel Pressure - Test NOTE: If you were referred to this procedure from a troubleshooting procedure, test the fuel pressure under the same conditions the ma

     Countershaft Assembly Clearance Inspection (M/T)

    Inspection NOTE: Before inspection, make sure the special bolt is tightened to the specified torque. 1. Countershaft Assembly Clearance - Inspect Measure the clearance between 1st gear (A) and the countershaft reverse gear (B) with a dial indicator (C). If the clearance exceeds the service

    © 2019-2024 Copyright www.hohrv2.com