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Without AcuraLink

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 is detected in the connecting lines (open or short) or in the HandsFreeLink control unit.
  • 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.

    Is the HFL icon red? 

    YES  -Go to step 5.

    NO  -Intermittent failure, the system is OK at this time.

  5. Turn the ignition switch to LOCK (0).
  6. Connect the HDS to the DLC (see GENERAL TROUBLESHOOTING INFORMATION ).
  7. Turn the ignition switch to ON (II).
  8. Check for DTCs with the HDS.

    Are any HFL DTCs indicated? 

    YES  -Do the HFL DTC troubleshooting.

    NO  -Go to step 9.

  9. Do the B-CAN test mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ), and check the communication with the HandsFreeLink control unit.

    Does the HandsFreeLink control unit communicate with the HDS? 

    YES  -Go to step 10.

    NO  -Go to HandsFreeLink control unit troubleshooting.

  10. Disconnect the HandsFreeLink control unit 28P connector (see step 2 under HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION , and audio-navigation unit connector C (28P).
  11. Check for continuity between body ground and HandsFreeLink control unit 28P connector terminals No. 6, No. 7, No. 20 and No. 21 individually.
    Fig 1: Checking Continuity Between Body Ground And 28P Connector Terminals
    G08058181Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

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

    NO  -Go to step 12.

  12. Check for continuity between the terminals of the HandsFreeLink control unit 28P connector according to the table.
    From terminal To terminals
    No. 6 (BLK) No. 7 (GRN), No. 8 (BRN), No. 20 (RED), No. 21 (WHT)
    No. 7 (GRN) No. 8 (BRN), No. 20 (RED), No. 21 (WHT)
    No. 8 (BRN) No. 20 (RED), No. 21 (WHT)
    No. 20 (RED) No. 21 (WHT)
    Fig 2: Identifying Handsfreelink Control Unit 28P Connector
    G08058182Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity between any of the terminals? 

    YES  -There is a short in the wires between the HandsFreeLink control unit and the audio-navigation unit. Replace the affected shielded harness.

    NO  -Go to step 13.

  13. Check for continuity between the HandsFreeLink control unit 28P connector and audio-navigation unit connector C (28P) according to the table.
HandsFreeLink control unit connector Audio-Navigation unit connector Wire color
No. 6 C22 BLK
No. 7 C23 GRN
No. 20 C10 RED
No. 21 C9 WHT
Fig 3: Identifying Handsfreelink Control Unit 28P Connector
G08058183Courtesy of AMERICAN HONDA MOTOR CO., INC.
Fig 4: Identifying Audio-Navigation Unit Connector C (28P)
G08058184Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity? 

YES  -Replace the HandsFreeLink control unit (see HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION ).

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

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