Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
DEFINITION: This table is used to diagnose audio distortion on one or more speakers on a Base or BOSE® audio system. | ||||
1 | Was the Radio/Audio System Check performed? | -- | Go to Step 2 | Go to Radio/Audio System Check |
2 |
Can audio distortion be heard from any speakers? | -- | Go to Step 3 | |
3 | Can audio distortion be heard from all speakers? | -- | Go to Step 4 | Go to Step 5 |
4 | Is the vehicle equipped with a remote amplifier? | -- | Go to Step 6 | |
5 | Test the appropriate speaker outputs from the radio or remote amplifier (if equipped) for a short to ground or an open. Refer to Testing for Short to Ground and Testing for Continuity in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 10 | Go to Step 7 |
6 | Does the audio system (with a remote amp) have a pop noise when the radio is turned ON or OFF? | -- | Go to Step 8 | |
7 | Inspect for poor connections at the harness connector of the speaker. Refer to Intermittents and Poor Connections Diagnosis in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 10 | Go to Step 9 |
8 |
Is any voltage measured on the amp enable circuit? | -- | Go to Step 11 | Go to Step 12 |
9 | Replace the speaker. Did you complete the replacement? | -- | Go to Step 10 | -- |
10 | Operate the system for which the symptom occurred. Is the symptom still present? | -- | Go to Step 2 | System OK |
11 |
Is the replacement complete? | -- | Go to Step 10 | -- |
12 |
Is the symptom still present? | -- | Go to Step 13 | Go to Step 14 |
13 |
Did you complete the replacement? | -- | Go to Step 10 | -- |
14 | Replace the test amplifier with a new unit. Is the replacement complete? | -- | Go to Step 10 | -- |
