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Home >> Acura >> 2020 >> ILX >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Audio System - Testing & Troubleshooting (Except Hybrid) >> Symptom Troubleshooting >> Audio System Symptom Troubleshooting - XM radio display is blank and no station information is displayed(Without Navigation) (2019 2020 2021 2022)

Audio System Symptom Troubleshooting - XM radio display is blank and no station information is displayed(Without Navigation) (2019 2020 2021 2022)

XM radio display is blank and no station information is displayed 

NOTE: 

  1. Problem verification 1

    -1. Turn the vehicle to the ON mode.

    -2. Turn on the audio system, and select the SiriusXM.

    Does the XM radio station information display blankΩ

    YES 

    Go to step 3.

    NO 

    Go to step 2.

  2. Problem verification 2

    -1. Check the XM radio screen.

    Does the XM radio channel graphic display blankΩ

    YES 

    Go to step 12.

    NO 

    Intermittent failure, the system is OK at this time. If the XM radio sound is not heard, go to Poor or no sound with XM radio (Audio unit does display XM channels) troubleshooting .

  3. System Diagnostic Mode check

    -1. Go into the System Diagnostic Mode, and use the System Links to check the Display icon status .

    Is the Display icon green?

    YES 

    Go to step 4.

    NO 

    Go to Center display does not dim or brighten with dimmer troubleshooting .

  4. Determine possible failure area (GA+B line, others)

    -1. Turn the vehicle to the OFF (LOCK) mode.

    -2. Disconnect the following connector.

    Tuner unit connector A (20P)

    -3. Measure the voltage between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
      Tuner unit connector A (20P): disconnected
    Test circuit GA+B
    Test point 1 Tuner unit connector A (20P) No. 16 (BLU)
    Test point 2 Body ground
    GHH462105Courtesy of HONDA, U.S.A., INC.

    Is there battery voltage?

    YES 

    The GA+B wire is OK. Go to step 6.

    NO 

    Go to step 5.

  5. Open wire check (GA+B line)

    -1. Measure the voltage between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
      Tuner unit connector A (20P): disconnected
    Test circuit GA+B
    Test point 1 Audio unit connector D (12P) No. 12 (BLU)
    Test point 2 Body ground
    GHH462106Courtesy of HONDA, U.S.A., INC.

    Is there battery voltage?

    YES 

    Repair an open in the wire.

    NO 

    Replace the audio unit .

  6. Determine possible failure area (GA GND line, others)

    -1. Check for continuity between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
      Tuner unit connector A (20P): disconnected
    Test circuit GA GND
    Test point 1 Tuner unit connector A (20P) No. 6 (BRN)
    Test point 2 Body ground
    GHH462107Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    The GA GND wire is OK. Go to step 8.

    NO 

    Go to step 7.

  7. Open wire check (GA GND line)

    -1. Check for continuity between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
      Tuner unit connector A (20P): disconnected
    Test circuit GA GND
    Test point 1 Audio unit connector D (12P) No. 6 (BRN)
    Test point 2 Body ground
    GHH462108Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    Repair an open in the wire.

    NO 

    Replace the audio unit .

  8. Determine possible failure area (GA SYS ON line, others)

    -1. Reconnect tuner unit connector A (12P).

    -2. Disconnect the following connector.

    HandsFreeLink control unit connector A (32P)

    -3. Measure the voltage between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
      HandsFreeLink control unit connector A (32P): disconnected
    Test circuit GA SYS ON
    Test point 1 Audio unit connector D (12P) No. 8 (TAN)
    Test point 2 Body ground
    GHH462109Courtesy of HONDA, U.S.A., INC.

    Is there about 3.0 V?

    YES 

    The GA SYS ON wire is OK. Go to step 10.

    NO 

    Go to step 9.

  9. Open wire check (GA SYS ON line)

    -1. Measure the voltage between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
      HandsFreeLink control unit connector A (32P): disconnected
    Test circuit GA SYS ON
    Test point 1 Tuner unit connector A (20P) No. 12 (TAN)
    Test point 2 Body ground
    GHH462110Courtesy of HONDA, U.S.A., INC.

    Is there about 3.0 V?

    YES 

    Repair an open in the wire.

    NO 

    Replace the tuner unit .

  10. Audio unit check

    -1. Turn the vehicle to the ON mode.

    -2. Measure the voltage between test points 1 and 2.

    Test condition Vehicle ON mode
      HandsFreeLink control unit connector A (32P): disconnected
    Test circuit GA SYS ON
    Test point 1 Audio unit connector D (12P) No. 8 (TAN)
    Test point 2 Body ground
    GHH462111Courtesy of HONDA, U.S.A., INC.

    Is there less than 0.2 V?

    YES 

    Go to step 11.

    NO 

    Replace the audio unit .

  11. Open wire check (GA BUS+ line, GA BUS- line)

    -1. Turn the vehicle to the OFF (LOCK) mode.

    -2. Disconnect the following connectors.

    Audio unit connector D (12P)
    Tuner unit connector A (20P)

    -3. Check for continuity between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
      HandsFreeLink control unit connector A (32P): disconnected
      Audio unit connector D (12P): disconnected
      Tuner unit connector A (20P): disconnected
    Test circuit GA BUS+
    Test point 1 Audio unit connector D (12P) No. 7 (BLU)
    Test point 2 Tuner unit connector A (20P) No. 12 (BLU)
    Test circuit GA BUS- 
    Test point 1 Audio unit connector D (12P) No. 1 (PNK)
    Test point 2 Tuner unit connector A (20P) No. 1 (PNK)
    GHH462112Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    The GA BUS+ and the GA BUS-  wires are OK. Go to step 15.

    NO 

    There is an open in the wire(s). Replace the affected shielded harness.

  12. Shorted wire check (DATA BUS+ line, DATA BUS- line)

    -1. Turn the vehicle to the OFF (LOCK) mode.

    -2. Disconnect the following connectors.

    Audio unit connector G (24P)
    Tuner unit connector A (20P)

    -3. Check for continuity between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
      Audio unit connector G (24P): disconnected
      Tuner unit connector A (20P): disconnected
    Test circuit DATA BUS+
    Test point 1 Audio unit connector G (24P) No. 22 (LT BLU)
    Test point 2 Body ground
    Test circuit DATA BUS- 
    Test point 1 Audio unit connector G (24P) No. 23 (PUR)
    Test point 2 Body ground
    GHH462113Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    There is a short to body ground in the wire(s). Replace the affected shielded harness.

    NO 

    The DATA BUS+ and the DATA BUS-  wires are not shorted to ground. Go to step 13.

  13. Shorted wire check (DATA BUS+ line to another lines)

    -1. Check for continuity between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
      Audio unit connector G (24P): disconnected
      Tuner unit connector A (20P): disconnected
    Test circuit DATA BUS+, DATA BUS- 
    Test point 1 Audio unit connector G (24P) No. 22 (LT BLU)
    Test point 2 Audio unit connector G (24P) No. 23 (PUR)
    Test circuit DATA BUS+, DATA BUS SH
    Test point 1 Audio unit connector G (24P) No. 22 (LT BLU)
    Test point 2 Audio unit connector G (24P) No. 21 (GRY)
    GHH462114Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    There is a short in the wires. Replace the affected shielded harness.

    NO 

    The DATA BUS+ wire is not shorted. Go to step 14.

  14. Open wire check (DATA BUS+ line, DATA BUS- line)

    -1. Check for continuity between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
      Audio unit connector G (24P): disconnected
      Tuner unit connector A (20P): disconnected
    Test circuit DATA BUS+
    Test point 1 Audio unit connector G (24P) No. 22 (LT BLU)
    Test point 2 Tuner unit connector A (20P) No. 20 (BLK)
    Test circuit DATA BUS- 
    Test point 1 Audio unit connector G (24P) No. 23 (PUR)
    Test point 2 Tuner unit connector A (20P) No. 10 (WHT)
    GHH462115Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    The DATA BUS+ and the DATA BUS-  wires are OK. Go to step 15.

    NO 

    There is an open in the wire(s). Replace the affected shielded harness.

  15. Tuner unit check

    -1. Substitute a known-good tuner unit.

    -2. Reconnect all the connectors, and recheck.

    Does the symptom go away?

    YES 

    Replace the original tuner unit.

    NO 

    Replace the audio unit .

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