Poor Sound Quality

*POOR SOUND QUALITY

For a complete wiring diagram refer to Diagrams/Electrical





Diagnostic Test

1. CHECK AUDIO DTCS

Turn the ignition on.

With the Scan Tool, check for any audio related DTC's.

Are any Audio related DTCs set?

Yes

- Refer to the Audio category for the related symptom(s).
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- Go To 2

2. CHECK SELECTED RADIO EQ CURVE

Turn the ignition on.

With the Scan Tool, enter body, body computer then miscellaneous.

Check the radio EQ curve setting and follow the instructions on the Scan Tool.

Is the radio EQ curve correct for the audio combination the vehicle is equipped with?

Yes

- Refer to problems related to poor sound quality and perform the appropriate checks.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- Go To 3

3. SET THE RADIO EQ CURVE

Turn the ignition on.

With the Scan Tool, enter body, body computer then miscellaneous.

Set the radio EQ curve. Follow the instructions on the Scan Tool.

Cycle the ignition switch from off to on.

Check the radio EQ curve setting.

Is the radio EQ curve correct for the audio combination the vehicle is equipped with?

Yes

- Refer to problems related to poor sound quality and perform the appropriate checks.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- Replace the Body Control Module.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test