Circuit/System Testing

RPO Code UQA

1. Ignition OFF, disconnect the radio X1 harness connector and the X3 amplifier harness connector.
2. Ignition ON, test for less than 1 volt on the radio audio mute signal terminal 37 X1 at the radio.
   • If greater then the specified value, test the circuit for a short to voltage.
3. Test for less than 5 ohms between the radio X1 terminal 37 to the amplifier X3 terminal 11.
   • If greater then specified range, test the circuit for an open/high resistance.