Honda HR-V Owners & Service Manuals

Honda HR-V: DTC B0050-13

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, 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.

    When troubleshooting, do not disconnect SRS unit connector B (39P) from the SRS unit.

Supplemental Restraint System - Diagnostics

DTC (SRS)

1. Problem verification:

  1. Clear the DTCs with the HDS.

Clear DTCs

  1. Turn the vehicle to the ON mode, then wait for 10 seconds. Buckle and unbuckle the driver's seat belt several times.
  2. Check for DTCs with the HDS.

Supplemental Restraint System - Diagnostics

Is DTC B0050-13 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. SRS unit check:

  1. Turn the vehicle to the OFF (LOCK) mode.
  2. Connect terminals A and B with a jumper wire.

Supplemental Restraint System - Diagnostics

  1. Clear the DTCs with the HDS.

Clear DTCs

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

Supplemental Restraint System - Diagnostics

Is DTC B0050-11 indicated?

YES

Go to step 3.

NO

Faulty SRS unit or poor connection at SRS unit connector B (39P) and the SRS unit. Check the connection; if the connection is OK, replace the SRS unit. If the DTC does not clear, replace the floor wire harness.

3. Open wire check (FLBC line):

  1. Turn the vehicle to the OFF (LOCK) mode.
  2. Remove the jumper wire from SRS unit connector B (39P).
  3. Disconnect the driver's seat belt buckle switch 2P connector (A) on the floor wire harness.

Supplemental Restraint System - Diagnostics

  1. Turn the vehicle to the ON mode.
  2. Measure the voltage between test points 1 and 2.

Supplemental Restraint System - Diagnostics

Supplemental Restraint System - Diagnostics

Is there 10 V or more?

YES

The FLBC wire is OK. Go to step 4.

NO

Open in the floor wire harness; replace the floor wire harness, then clear the DTC.

4. Open wire check (GND line):

  1. Turn the vehicle to the OFF (LOCK) mode.
  2. Measure the resistance between test points 1 and 2.

Supplemental Restraint System - Diagnostics

Supplemental Restraint System - Diagnostics

Is there 1.0 Ω or less?

YES

The GND wire is OK. Faulty driver's seat belt buckle switch; replace the driver's seat belt buckle assembly, then clear the DTC.

NO

Open in the floor wire harness; check for a poor ground at G502. If the ground is OK, replace the floor wire harness, then clear the DTC.

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