Reduced Volume - One or More Speakers. Buick Park Avenue 2000

For 1990-2009 cars only

Makes 🢒 Buick 🢒 2000 🢒 Park Avenue 🢒 Body and Accessories 🢒 Entertainment 🢒 Reduced Volume - One or More Speakers

Step	Action	Yes	No
Schematic Reference: Radio Output (U99) Entertainment Components Radio/Audio System Circuit Description Audio Door Speaker Output (U99) Radio Speaker Output (UW6)
1	Did you review the audio descriptions and operations and perform the necessary inspections?	Go to Step 2	Go to Radio/Audio System Description
2	Turn ON the ignition, with the engine OFF. Turn ON the radio. Insert the tape or CD from the J 39916-A . Is the volume reduced in one or more speakers?	Go to Step 3	Go to Audio System Troubleshooting Hints
3	Is the volume reduced in all speakers?	Go to Step 4	Go to Step 5
4	Compare the volume to a similar vehicle with the same audio system. Are both vehicles the same?	System OK	Go to Step 6
5	Test the radio output circuits of the appropriate speaker channel for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 9	Go to Step 7
6	Test the audio amplifier diagnostic circuit for a short to B+. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 9	Go to Step 7
7	Inspect for poor connections at the harness connector of the radio. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 9	Go to Step 8
8	Replace the radio and perform the set up procedure for the radio. Refer to Radio Replacement . Did you complete the replacement?	Go to Step 9	--
9	Operate the system in order to verify the repair. Did you correct the condition?	System OK	Go to Step 2

Radio Output (U99)