Audio System Symptom Troubleshooting - No sound is heard from the speaker(s) (display is normal) (with premium audio system)

  1. Check for continuity between the terminals of stereo amplifier connector A (24P) according to the table.
    From terminals
    To terminals
    Stereo amplifier connector
    Audio unit connector
    Stereo amplifier connector
    Audio unit connector
    B16 (GRY)
    C7 (GRY)
    B1 (RED)
    C1 (RED)
    B15 (GRN)
    C2 (GRN)
    B12 (GRY)
    A21 (GRY)
    B25 (RED)
    A18 (GRN)
    B11 (GRN)
    A19 (BLK)
    B24 (WHT)
    A22 (WHT)
    B10 (BLK)
    A23 (RED)
    B1 (RED)
    B1 (RED)

Is there continuity between any of the terminals?
YES -
Repair short in the wire(s) between the audio unit and stereo amplifier (replace the appropriate shielded harness).■
NO -
Substitute a known-good audio unit and recheck. If the symptom/indication goes away, replace the original audio unit, If the symptom is still present, substitute a known-good stereo amplifier and recheck. If the symptom/indication goes away, replace the original stereo amplifier. ■