Honda HR-V Owners & Service Manuals

Honda HR-V: DTC Troubleshooting 81-56: Internal Failure of the Front Passenger's Weight Sensor

Honda HR-V (2015-2021) Service Manual / Restraints / Occupant Detection System - Diagnostics / Troubleshooting / DTC Troubleshooting 81-56: Internal Failure of the Front Passenger's Weight Sensor

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, review SRS Precautions and Procedures and General Troubleshooting Information.
  • Before replacing the front passenger's weight sensor unit, check the front passenger's weight sensor unit software version with the HDS. If the software version is not the latest, update the front passenger's weight sensor unit software, and retest.

Occupant Detection System - Diagnostics

1. Problem verification:

  1. Clear the DTCs with the HDS.
  2. Turn the vehicle to the ON mode, then wait for 10 seconds.
  3. Check for DTCs with the HDS.

Occupant Detection System - Diagnostics

Is DTC 81-56 indicated?

YES

The failure is duplicated. Replace the front passenger's weight sensor unit.

NO

Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures. If another DTC is indicated, troubleshoot the DTC.

DTC TROUBLESHOOTING 81-61, 84-81: WRONG COMBINATION WITH THE SRS UNIT

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, review SRS Precautions and Procedures and General Troubleshooting Information.
  • Before replacing the SRS unit, check the SRS unit software version with the HDS. If the software version is not the latest, update the SRS unit software, and retest.
  • Before replacing the front passenger's weight sensor unit, check the front passenger's weight sensor unit software version with the HDS. If the software version is not the latest, update the front passenger's weight sensor unit software, and retest.

Occupant Detection System - Diagnostics

1. Problem verification:

  1. Clear the DTCs with the HDS.
  2. Turn the vehicle to the ON mode, then wait for 10 seconds.
  3. Check for DTCs with the HDS.

Occupant Detection System - Diagnostics

Is DTC 81-61 or 84-81 indicated?

YES

The failure is duplicated. Replace the Front passenger's weight sensor unit, then clear the DTC, and retest. If the DTC is still present, replace the SRS unit.

NO

Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures. If another DTC is indicated, troubleshoot the DTC.

DTC TROUBLESHOOTING 81-71, 84-92: FRONT PASSENGER'S WEIGHT SENSOR OUTPUT CHECK FAILURE, CALIBRATION FAILURE

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, review SRS Precautions and Procedures and General Troubleshooting Information.

Occupant Detection System - Diagnostics

1. Problem verification:

  1. Clear the DTCs with the HDS.
  2. Turn the vehicle to the ON mode, then wait for 10 seconds.
  3. Check for DTCs with the HDS.

Occupant Detection System - Diagnostics

Is DTC 81-71 or 84-92 indicated?

YES

The failure is duplicated. Go to step 2.

NO

Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures. If another DTC is indicated, troubleshoot the DTC.

2. DTC check:

Check for DTCs with the HDS.

Occupant Detection System - Diagnostics

Are any front passenger's weight sensor DTCs indicated?

YES

Go to appropriate DTC troubleshooting.

NO

Do the front passenger's weight sensor initialization.

DTC TROUBLESHOOTING 82-11, 82-12, 82-21, 82-22, 83-31, 83-32, 83-41, 83-42: INTERNAL FAILURE OF THE FRONT PASSENGER'S WEIGHT SENSOR

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, review SRS Precautions and Procedures and General Troubleshooting Information.

Occupant Detection System - Diagnostics

1. Problem verification:

  1. Clear the DTCs with the HDS.
  2. Turn the vehicle to the ON mode, then wait for 10 seconds.
  3. Check for DTCs with the HDS.

Occupant Detection System - Diagnostics

Is DTC 82-11, 82-12, 82-21, 82-22, 83-31, 83-32, 84-41, or 84-42 indicated?

YES

The failure is duplicated. Replace the front passenger's seat rail including all four front passenger's weight sensors.

NO

Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures. If another DTC is indicated, troubleshoot the DTC.

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