Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Radio/Audio System Schematics | |||
1 | Did you perform the Radio/Audio System Diagnostic System Check? | Go to Step 2 | |
2 |
Is the lowest audible setting too loud? | Go to Step 3 | |
3 | Using a scan tool, observe the audio amplifier parameter in the system configuration data list. Does the scan tool indicate that the audio amplifier is not present? | Go to Step 5 | Go to Step 4 |
4 | Compare the volume to a similar vehicle with the same audio system. Are both vehicles the same? | System OK | Go to Step 7 |
5 | Test the gain control signal circuit 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 11 | Go to Step 6 |
6 |
Does the scan tool indicate that the audio amplifier is present? | Go to Step 8 | 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 11 | Go to Step 9 |
8 | Inspect for poor connections at the harness connector of the audio amplifier. 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 11 | Go to Step 10 |
9 | Replace the radio and perform the set up procedure. Refer to Radio Replacement and Radio Setup Did you complete the replacement? | Go to Step 11 | -- |
10 | Replace the audio amplifier. Refer to Radio Speaker Amplifier Replacement . Did you complete the replacement? | Go to Step 11 | -- |
11 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
