Input Test
- With the subwoofer/amplifier 8P connector connected, make the input tests at the connector according to the table.
Terminal Test 4 Measure the voltage to ground with all conditions: There should be less than 0.2 V. 5 Measure the voltage to ground with all conditions: There should be battery voltage. 6 Measure the voltage to ground with audio system power switch ON: There should be battery voltage. - If the input test proves OK and the subwoofer has no sound, replace the faulty subwoofer/amplifier unit.