Speaker Circuit Malfunction - without Amplifier
- Ignition OFF, inspect the appropriate speaker and the surrounding interior trim for proper and secure mounting. Improper speaker mounting or loose trim may cause an audible buzz or distortion.
- If the speaker or surrounding interior trim is found to be loose or improperly secured, correctly secure the item.
- Disconnect the harness connector at the appropriate speaker.
- Radio ON, test for 5.0-7.5 volts between the speaker output circuit terminal 2 and ground.
- If greater than the specified range, test the output circuit for a short to voltage. If the circuit tests normal, replace the radio.
- If less than the specified range, test the output circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the radio.
- Test for 5.0-7.5 volts between the speaker output circuit terminal 1 and ground.
- If greater than the specified range, test the output circuit for a short to voltage. If the circuit tests normal, replace the radio.
- If less than the specified range, test the output circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the radio.
- If all circuits test normal, test or replace the inoperative speaker.