Honda HR-V Owners & Service Manuals

Honda HR-V: Rearview Camera Image Does Not Come ON Or Work Properly (Without Navigation, Color Audio Type (5-inch Screen) )

Honda HR-V (2015-2021) Service Manual / Accessories & Equipment / Audio Visual Systems - Testing & Troubleshooting / Symptom Troubleshooting / Rearview Camera Image Does Not Come ON Or Work Properly (Without Navigation, Color Audio Type (5-inch Screen) )

NOTE:

  • Check the vehicle 12 volt battery condition first.
  • Check the connectors for poor connections or loose terminals.

1. Problem verification:

  1. Turn the vehicle to the ON mode.
  2. Shift the transmission to R position/mode.

Does the audio display image change when the transmission is shifted to R position/mode?

YES: Rearview is displayed

Intermittent failure, the system is OK at this time.

YES: Rearview is not displayed (no image)

Go to step 5.

NO: Audio display image does not change

The failure is duplicated, go to step 2.

2. Determine possible failure area (CAMERA ADPT line, others):

  1. Shift the transmission to P position/mode or N position/mode.
  2. Go into the System Diagnostic Mode, and use the In Line Diag to check the rearview camera connection - Refer to: Audio System Sound Quality Diagnosis, or Audio System Diagnostic Mode (Without Navigation, Display Audio Type (7-inch Screen) ), or Audio System Diagnostic Mode (Without Navigation, Color Audio Type (5- inch Screen) ).

Does the Rear Camera indicate OK?

YES

Go to step 3.

NO

Go to step 11.

3. Determine possible failure area (BACKLTSW signal, audio unit)

Go into the System Diagnostic Mode, and use the MICU ICU in the Vehicle Information to check the BACK signals - Refer to: Audio System Sound Quality Diagnosis, or Audio System Diagnostic Mode (Without Navigation, Display Audio Type (7-inch Screen) ), or Audio System Diagnostic Mode (Without Navigation, Color Audio Type (5-inch Screen) ).

Does the C_BACKLT SW signal change from [0] to [1] when the transmission is shifted from P or N position/mode to R position/mode?

YES

Replace the audio unit - Refer to: Audio Unit Removal and Installation (Display Audio Type (7-inch Screen) ), or Audio Unit Removal and Installation (Color Audio Type (5-inch Screen) ).

NO

Go to step 4.

4. Open wire check (B-CAN_H, B-CAN_L lines):

  1. Shift the transmission to P position/mode or N position/mode.
  2. Turn the vehicle to the OFF (LOCK) mode.
  3. Disconnect the following connectors.

Audio unit connector C (24P)

Under-dash fuse/relay box connector D (24P)

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

Audio Visual Systems - Testing & Troubleshooting

Audio Visual Systems - Testing & Troubleshooting

Is there continuity?

YES

Replace the audio unit - Refer to: Audio Unit Removal and Installation (Display Audio Type (7-inch Screen) ), or Audio Unit Removal and Installation (Color Audio Type (5-inch Screen) ).

NO

Repair an open in the wire (s) between the audio unit and the under-dash fuse/relay box.

5. Determine possible failure area (CAMERA VCC line, others):

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

Rearview camera 8P connector

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

Audio Visual Systems - Testing & Troubleshooting

Is there about 5 - 9 V?

YES

Go to step 7.

NO

Go to step 6.

6. Open wire check (CAMERA VCC line).

Measure the voltage between test points 1 and 2.

Audio Visual Systems - Testing & Troubleshooting

Is there about 5 - 9 V?

YES

There is an open in the wire between the audio unit and the rearview camera. Replace the affected shielded harness.

NO

Replace the audio unit - Refer to: Audio Unit Removal and Installation (Display Audio Type (7-inch Screen) ), or Audio Unit Removal and Installation (Color Audio Type (5-inch Screen) ).

7. Open wire check (CAMERA V, CAMERA V GND lines):

  1. Shift the transmission to P position/mode or N position/mode.
  2. Turn the vehicle to the OFF (LOCK) mode.
  3. Disconnect the following connector.

Audio unit connector C (24P)

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

Audio Visual Systems - Testing & Troubleshooting

Audio Visual Systems - Testing & Troubleshooting

Is there continuity?

YES

The CAMERA V wire and CAMERA V GND wire are not open. Go to step 8.

NO

There is an open in the wire (s) between the audio unit and the rearview camera. Replace the affected shielded harness.

8. Shorted wire check (SH CAMERA, CAMERA V, CAMERA V GND lines):

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

Audio Visual Systems - Testing & Troubleshooting

Is there continuity between any of the terminals?

YES

There is a short in the wires between the audio unit and the rearview camera. Replace the affected shielded harness.

NO

The CAMERA wires are not shorted. Go to step 9.

9. Shorted wire check (CAMERA V, CAMERA V GND lines).

Check for continuity between test points 1 and 2.

Audio Visual Systems - Testing & Troubleshooting

Is there continuity?

YES

There is a short to body ground in the wire (s) between the audio unit and the rearview camera. Replace the affected shielded harness.

NO

The CAMERA V wire and CAMERA V GND wire are OK. Go to step 10.

10. Audio unit check (substitution):

  1. Substitute a known-good audio unit. - Refer to: Audio Unit Removal and Installation (Display Audio Type (7-inch Screen) ), or Audio Unit Removal and Installation (Color Audio Type (5-inch Screen) )
  2. Reconnect all the connectors, and recheck.

Does the symptom go away?

YES

Replace the original audio unit.

NO

Replace the rearview camera.

11. Determine possible failure area (CAMERA ADPT line, CAMERA GND line):

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

Rearview camera 8P connector

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

Audio Visual Systems - Testing & Troubleshooting

Is there about 5.0 V?

YES

Go to step 13.

NO

Go to step 12.

12. Open wire check (CAMERA ADPT line).

Measure the voltage between test points 1 and 2.

Audio Visual Systems - Testing & Troubleshooting

Is there about 5.0 V?

YES

Repair an open in the wire between the audio unit and the rearview camera.

NO

Replace the audio unit - Refer to: Audio Unit Removal and Installation (Display Audio Type (7-inch Screen) ), or Audio Unit Removal and Installation (Color Audio Type (5-inch Screen) ).

13. Rearview camera check (CAMERA GND line):

  1. Turn the vehicle to the OFF (LOCK) mode.
  2. Check for continuity between test points 1 and 2.

Audio Visual Systems - Testing & Troubleshooting

Is there continuity?

YES

Replace the rearview camera.

NO

Go to step 14.

14.Open wire check (CAMERA GND line):

  1. Disconnect the following connector.

Audio unit connector C (24P)

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

Audio Visual Systems - Testing & Troubleshooting

Is there continuity?

YES

Replace the audio unit - Refer to: Audio Unit Removal and Installation (Display Audio Type (7-inch Screen) ), or Audio Unit Removal and Installation (Color Audio Type (5-inch Screen) ).

NO

There is an open in the wire between the audio unit and the rearview camera. Replace the affected shielded harness.

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