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Rearview camera image does not come on or work properly

WARNING: This page is about a different car, the 2013 Acura MDX, 2012 Acura MDX, 2011 Acura MDX, and 2010 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • Check the vehicle battery condition first (see BATTERY TEST ).
  • If you cannot change the rearview image, go to Rearview camera image does not change (see REARVIEW CAMERA IMAGE DOES NOT CHANGE  ).
  • Check for and resolve all CAN DTCs before troubleshooting the navigation system.
  • Check the connectors for poor connections or loose terminals.
  • Before troubleshooting, make sure you have the anti-theft codes for the audio-navigation unit.
  • After troubleshooting, enter the anti-theft codes for the audio-navigation unit.
  • Check any official Honda service website for more service information about the navigation system.
  1. Turn the ignition switch to ON (II).

    Does the Navigation screen come on and show an image when the vehicle is started? 

    YES  -Go to step 2.

    NO  -Go to troubleshooting for No picture is displayed (see NO PICTURE IS DISPLAYED  ).

  2. Go into the Self-Diagnosis Mode, and use the System Links diagnostic (see SYSTEM LINKS  ) to check the connection between the navigation display unit and the rearview camera.

    Is the R-camera link on the screen? 

    YES  -Go to step 3.

    NO  -Go to step  4.

  3. Confirm the system connection.

    Is the R-camera link red on the screen? 

    YES  -Go to step 4.

    NO  -Go to Car Status, and check the BACK-Reverse indication status (see CAR STATUS  ).

  4. Turn the ignition switch to LOCK (0).
  5. Check the connections between the navigation display unit 28P connector and the rearview camera 6P connector.

    Are the connections OK? 

    YES  -Go to step 6.

    NO  -Repair the poor connection, and reconnect the connectors.

  6. Disconnect the navigation display unit 28P connector and the rearview camera 6P connector.
  7. Check for continuity between the navigation display unit 28P connector and the rearview camera 6P connector according to the table.
    Navigation display unit connector Rearview camera connector Wire color
    No. 7 No. 4 GRN
    No. 9 No. 3 YEL
    No. 13 No. 2 GRY
    No. 14 No. 1 BLK
    No. 20 No. 5 RED
    No. 26 No. 6 WHT
    Fig 1: Identifying Navigation Display Unit 28P Connector
    G08058218Courtesy of AMERICAN HONDA MOTOR CO., INC.
    Fig 2: Identifying Rearview Camera 6P Connector
    G08058219Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  -Go to step 8.

    NO  -There is an open in the wire(s) between the navigation display unit and the rearview camera. Replace the affected shielded harness.

  8. Check for continuity between the terminals of navigation display unit 28P connector according to the table.
    From terminal To terminals
    No. 7 (GRN) No. 9 (YEL), No. 13 (GRY), No. 14 (BLK), No. 20 (RED), No. 26 (WHT)
    No. 9 (YEL) No. 13 (GRY), No. 14 (BLK), No. 20 (RED), No. 26 (WHT)
    No. 13 (GRY) No. 14 (BLK), No. 20 (RED), No. 26 (WHT)
    No. 14 (BLK) No. 20 (RED), No. 26 (WHT)
    No. 20 (RED) No. 26 (WHT)
    Fig 3: Identifying Navigation Display Unit 28P Connector
    G08058220Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity between any of the terminals? 

    YES  -There is a short in the wires between the navigation display unit and the rearview camera. Replace the affected shielded harness.

    NO  -Go to step 9.

  9. Check for continuity between body ground and navigation display unit 28P connector according to the table.
    Navigation display unit connector Wire color
    No. 7 GRN
    No. 9 YEL
    No. 14 BLK
    No. 20 RED
    No. 26 WHT
    Fig 4: Identifying Navigation Display Unit 28P Connector
    G08058221Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

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

    NO  -Go to step 10.

  10. Turn the ignition switch to ON (II).
  11. Measure the voltage between body ground and navigation display unit 28P connector according to the table.
    Navigation display unit connector Wire color
    No. 7 GRN
    No. 9 YEL
    No. 14 BLK
    No. 20 RED
    No. 26 WHT
    Fig 5: Identifying Navigation Display Unit 28P Connector
    G08058222Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there more than 0.2 V? 

    YES  -There is a short to power in the wires between the navigation display unit and the rearview camera. Replace the affected shielded harness.

    NO  -Go to step 12.

  12. Turn the ignition switch to LOCK (0).
  13. Reconnect the navigation display unit 28P connector.
  14. Measure the voltage between body ground and rearview camera 6P connector terminals No. 4 and No. 5 individually.
    Fig 6: Measuring Voltage Between Body Ground And 6P Connector Terminals
    G08058223Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there battery voltage on both terminals? 

    YES  - Replace the navigation display unit (see NAVIGATION DISPLAY UNIT REMOVAL/INSTALLATION  ).

    NO  -Go to step 15.

  15. Reconnect the rearview camera 6P connector.
  16. Substitute a known-good navigation display unit (see NAVIGATION DISPLAY UNIT REMOVAL/INSTALLATION  ), and check the rearview camera image in reverse.

    Is the rearview image OK? 

    YES  -Replace the original navigation display unit (see NAVIGATION DISPLAY UNIT REMOVAL/INSTALLATION  ).

    NO  -Replace the rearview camera (see REARVIEW CAMERA REMOVAL/INSTALLATION  ).

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