Radio Remote Switch Does Not Work Properly

2003 Acura MDX TouringSECTION Radio Remote Switch Does Not Work Properly
  1. Test the radio remote switch.

    Is the radio remote switch OK? 

    1. YES  - Go to step 2.
    2. NO  - Replace the radio remote switch.
  2. Remove the audio unit (see AUDIO UNIT REMOVAL/INSTALLATION  ).
  3. Disconnect the audio unit connector A (20P).
  4. Measure resistance between the audio unit connector A (20P) No. 3 and No. 11 terminals as specified in the check list.
    Fig 1: Measuring Resistance Between Audio Unit Connector A (20P) Terminals 3 And 11
    G03642518Courtesy of AMERICAN HONDA MOTOR CO., INC.
    CHECK LIST

    Button held down VOL DOWN VOL UP CH MODE (NONE)
    Resistance about 47 ohm; about 317 ohm; about 1 kohm; about 3.2 kohm; 10 kohm;

    Is resistance OK? 

    1. YES  - Go to step 5.
    2. NO  - Repair open or high resistance in the circuit between the audio unit and the radio remote switch. If the wires are OK, replace the cable reel (see CABLE REEL REPLACEMENT ).
  5. Check for continuity between body ground and audio unit connector (20P) A3 and A11 terminals individually.
    Fig 2: Checking Continuity Between Body Ground And Audio Unit Connector And Terminals A3 And A11
    G03642519Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    1. YES  - Repair the short to body ground in the circuit between the audio unit and the radio remote switch. If the wires are OK, replace the cable reel (see CABLE REEL REPLACEMENT ).
    2. NO  - Replace the audio unit (see AUDIO UNIT REMOVAL/INSTALLATION  )
RENDER: 1.0x

NO RELATED

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

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