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:

     Inspection & Adjustment

    DRIVESHAFT INSPECTION Inspection 1. Driveshaft - Inspect Check the inboard boot (A) and the outboard boot (B) on the driveshaft (C) for cracks, damage, leaking grease, and loose boot bands (D). If any damage is found, replace the boot and the boot bands Check the driveshaft for cracks and

     SRS Symptom Troubleshooting - Front Passenger's Airbag ON/OFF Switch to OFF, But Front Passenger's Airbag OFF Indicator Does Not Come ON

    NOTE: Before doing this troubleshooting procedure, find out if the vehicle was in a collision. If so, verify that all the required components were replaced with new components of the correct part number, and that they were properly installed. Before doing this troubleshooting procedure, revi

    © 2019-2026 Copyright www.hohrv2.com