Honda HR-V: DTC Troubleshooting 58-11: Brake Diag Circuit OFF Failure

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

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, then to the ON mode.
4. Do the BRAKE LIGHT RELAY function test with the HDS.
5. Check for DTCs with the HDS.

Is DTC 58-11 indicated?

YES

Go to step 2.

NO

Go to step 5.

2. Open wire check (BRK DIAG line):

1. Turn the vehicle to the OFF (LOCK) mode.
2. Disconnect the following connector.

Brake pedal position switch 4P connector

3. Remove the brake light relay from the auxiliary under-hood relay box A.
4. Check for continuity between test points 1 and 2.

Is there continuity?

YES

The BRK DIAG wire is OK. Go to step 3.

NO

Repair an open in the BRK DIAG wire between the brake pedal position switch and the brake light relay in the auxiliary under-hood relay box A.

3. Open wire check (STOP SW line):

1. Disconnect the following connectors.

VSA modulator-control unit 21P connector

2. Check for continuity between test points 1 and 2.

Is there continuity?

YES

The STOP SW wire is OK. Go to step 4.

NO

Repair an open in the STOP SW wire between the VSA modulator-control unit and the brake light relay in the auxiliary under-hood relay box A.

4. Brake light relay relay check (substitution):

1. Substitute a known-good brake light relay.
2. Reconnect the following connectors.

Brake pedal position switch 4P connector

VSA modulator-control unit 21P connector

3. Turn the vehicle to the ON mode.
4. Clear the DTC with the HDS.
5. Turn the vehicle to the OFF (LOCK) mode, then to the ON mode.
6. Do the BRAKE LIGHT RELAY function test with the HDS.
7. Check for DTCs with the HDS.

Is DTC 58-11 indicated?

YES

Go to step 9.

NO

Replace the original brake light relay.

5. Open wire check (BRK LAMP line) 1:

1. Turn the vehicle to the OFF (LOCK) mode.
2. Disconnect the following connector.

VSA modulator-control unit 21P connector

3. Connect terminals 1 and 2 with a jumper wire.

4. Turn the vehicle to the ON mode.
5. Check the brake lights without pressing the brake pedal.

Are the brake lights on?

YES

The BRK LAMP wire is OK. Go to step 8.

NO

Go to step 6.

6. Open wire check (BRK LAMP line) 2:

1. Turn the vehicle to the OFF (LOCK) mode.
2. Disconnect the jumper wire.
3. Remove the brake light relay from the auxiliary under-hood relay box A.
4. Check for continuity between test points 1 and 2.

Is there continuity?

YES

The BRK LAMP wire is OK. Go to step 7.

NO

Repair an open in the BRK LAMP wire between the VSA modulator-control unit and the brake light relay in the auxiliary under-hood relay box A.

7. Open wire check (IG1 VSA/EPS line):

1. Turn the vehicle to the ON mode.
2. Check for continuity between test points 1 and 2.

Is there battery voltage?

YES

Replace the brake light relay.

NO

Repair an open in the IG1 VSA/EPS wire between the brake light relay in the auxiliary under-hood relay box A and the No. C27 (7.5 A) fuse in the under-dash fuse/relay box.

8. Open wire check (STOP SW line):

1. Turn the vehicle to the OFF (LOCK) mode.
2. Disconnect the jumper wire.
3. Remove the brake light relay from the auxiliary under-hood relay box A.
4. Check for continuity between test points 1 and 2.

Is there continuity?

YES

The STOP SW wire is OK. Go to step 9.

NO

Repair an open in the STOP SW wire between the VSA modulator-control unit and the brake light relay in the auxiliary under-hood relay box A.

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

1. Turn the vehicle to the OFF (LOCK) mode.
2. Reconnect the following connectors.

Brake light relay 5P connector (if disconnected)

VSA modulator-control unit 21P connector (if disconnected)

3. Update the VSA modulator-control unit if it does not have the latest software.
4. Turn the vehicle to the OFF (LOCK) mode, then to the ON mode.
5. Do the BRAKE LIGHT RELAY function test with the HDS.
6. Check for DTCs with the HDS.

Is DTC 58-11 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: