LEMON Manuals: Even more car manuals for everyone
Home >> Acura >> 2014 >> TSX Special Edition, Automatic Trans >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control (4-CYL) >> Audio Communication Line Circuit Troubleshooting >> With Navigation

With Navigation

  1. Turn the ignition switch to LOCK (0).
  2. Disconnect climate control unit connector A (28P) and the audio-navigation switch panel 24P connector.
  3. Measure the voltage between audio-navigation switch panel 24P connector terminal No. 21 and body ground.
    Fig 1: Measuring The Voltage Between Audio-Navigation Switch Panel 24P Connector Terminal No. 21 And Body Ground
    G00520181Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there battery voltage? 

    YES  -Go to step 4.

    NO  -Repair an open in the wire between the No. 16 (7.5 A) fuse in the driver's under-dash fuse/relay box and the audio-navigation switch panel.

  4. Turn the ignition switch to LOCK (0).
  5. Disconnect the climate control unit connector A (28P).
  6. Check for continuity between the following terminals of climate control unit connector A (28P) and the audio-navigation switch panel 24P connector.

    28P: 24P:

    No. 19 No. 7

    No. 20 No. 19

    Fig 2: Checking Continuity Between Terminals Of Climate Control Unit Connector A (28P) And Audio-Navigation Switch Panel 24P Connector
    G07770678Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  -Go to step 7.

    NO  -Repair an open in the wire between climate control unit connector A (28P) and the audio-navigation switch panel 24P connector.

  7. Check for continuity between body ground and climate control unit connector A (28P) terminals No. 19 and No. 20 individually.
    Fig 3: Checking Continuity Between Body Ground And Climate Control Unit Connector A (28P) Terminals No. 19 And No. 20
    G07770679Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  -Repair a short to body ground in the wire between climate control unit connector A (28P) and the audio-navigation switch panel 24P connector.

    NO  -Go to step 8.

  8. Reconnect climate control unit connector A (28P).
  9. Connect audio-navigation switch panel 24P connector terminals No. 7 and No. 19 with a jumper wire.
    Fig 4: Connecting Audio-Navigation Switch Panel 24P Connector Terminals No. 7 And No. 19 Using Jumper Wire
    G07770680Courtesy of AMERICAN HONDA MOTOR CO., INC.
  10. Turn the ignition switch to ON (II).
  11. Press and hold the WINDSHIELD DEFOGGER button and ON/OFF button.

    Is the WINDSHIELD DEFOGGER button LED blinking? 

    YES  -The audio-navigation switch panel is faulty, replace the audio-navigation switch panel (see AUDIO-NAVIGATION SWITCH PANEL REMOVAL/INSTALLATION ).

    NO  -The climate control unit is faulty, replace the Climate control unit (see CLIMATE CONTROL UNIT REMOVAL/INSTALLATION  ).

scientia non olet · About LEMON Manuals