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DTC 2708: RES Diag

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 ).
  • This navigation DTC sets when a problem (open or short) is detected in the GA-Net BUS.
  • Before you troubleshoot, make sure to follow the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION  ).
  1. Clear the hard error code (see HOW TO CLEAR ERROR HISTORY  ).
  2. Turn the ignition switch to LOCK (0), and then back to ON (II).
  3. Go into the Diagnostic Menu, and select the Self-Diagnosis Mode in the Select Diagnosis Items menu (see SYSTEM DIAGNOSTIC MODE  ).
  4. Check the System Links, then select the RES.

    Is Connection OK indicated? 

    YES  -Intermittent failure, the system is OK at this time.

    NO  -Go to step 5.

  5. Press the REAR PWR button.

    Does the rear controller and screen turn on? 

    YES  -Go to step 6.

    NO  -Go to RES power will not turn on (see RES POWER WILL NOT TURN ON ).

  6. Check the diagnosis menu CONNECT status of the rear entertainment system self-diagnostic (see SELF-DIAGNOSTIC FUNCTION ).

    Is the RR DISP icon green? 

    YES  -Go to step 7.

    NO  -Replace the rear controller and screen (see WIRELESS REMOTE CONTROL ILLUMINATION DOES NOT COME ON ).

  7. Turn the ignition switch to LOCK (0).
  8. Disconnect the rear controller and screen 24 P connector and audio-navigation unit connector E(16P).
  9. Check for continuity between body ground and rear controller and screen 24P connector terminals No. 3 and No. 14 individually.
    Fig 1: Checking Continuity Between Body Ground And 24P Connector Terminals
    G08058187Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  -There is a short to body ground in the wire(s) between the rear controller and screen and the audio-navigation unit. Replace the affected shielded harness.

    NO  -Go to step 10.

  10. Check for continuity between the terminals of rear controller and screen 24P connector according to the table.
    From terminal To terminals
    No. 3 (LT BLU) No. 13 (BRN), No. 14 (PUR)
    No. 13 (BRN) No. 14 (PUR)
    Fig 2: Identifying Rear Controller And Screen 24P Connector
    G08058188Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity between any of the terminals? 

    YES  -There is a short in the wires between the rear controller and screen and the audio-navigation unit. Replace the affected shielded harness.

    NO  -Go to step 11.

  11. Connect audio-navigation unit connector E (16P) terminals No. 8 and No. 16 with a jumper wire.
    Fig 3: Connecting Connector E (16P) Terminals No. 8 And No. 16 With Jumper Wire
    G08058189Courtesy of AMERICAN HONDA MOTOR CO., INC.
  12. Check for continuity between rear controller and screen 24P connector terminals No. 3 and No. 14.
    Fig 4: Checking Continuity Between 24P Connector Terminals No. 3 And No. 14
    G08058190Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  -Replace the rear controller and screen (see WIRELESS REMOTE CONTROL ILLUMINATION DOES NOT COME ON ).

    NO  -There is an open in the wire(s) between the rear controller and screen and the audio-navigation unit. Replace the affected shielded harness.

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