( TL19E00J10300000000FAAT15 )

Audio System Symptom Troubleshooting - Radio tuner does not change stations

1. Check for continuity between the terminals of audio/navigation switch panel 24P connector according to the table.

   From terminal | To terminal
   --- | ---
   Audio unit connector | Audio/navigation switch panel connector
   C4 | No. 6, No. 18

Is there continuity between any of the terminals?

YES | - | Repair short in the wire(s) between the audio unit and audio/navigation switch panel (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 audio/navigation switch panel and recheck. If the symptom/indication goes away, replace the original audio/navigation switch panel. ■