Speakers Inoperative - One or More
WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
Speakers Inoperative - One or More
| Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
| Schematic Reference: Radio/Audio System Schematics | ||||
| 1 | Did you review the Radio/Audio System Description and Operation and perform the necessary inspections? | - | Go to Step 2 | Go to Radio/Audio System Description and Operation |
| 2 |
|
- | Go to TESTING FOR INTERMITTENT CONDITIONS AND POOR CONNECTIONS in Wiring Systems | Go to Step 3 |
| 3 | Are all of the speakers inoperative? | - | Go to Step 10 | Go to Step 4 |
| 4 | Is an audio amplifier installed in the Radio/Audio System? | - | Go to Step 6 | Go to Step 5 |
| 5 |
|
- | Go to Step 15 | Go to Step 9 |
| 6 |
|
0.020 V | Go to Step 7 | Go to Step 8 |
| 7 | Test the appropriate speaker output circuits of the audio amplifier for a short, high resistance, or an open. Refer to CIRCUIT TESTING
and WIRING REPAIRS
in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 21 | Go to Step 14 |
| 8 | Test the appropriate speaker input circuits of the audio amplifier for a short, high resistance, or an open. Refer to CIRCUIT TESTING
and WIRING REPAIRS
in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 21 | Go to Step 15 |
| 9 | Test the appropriate speaker output circuits of the radio for a short or an open. Refer to CIRCUIT TESTING
and WIRING REPAIRS
in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 21 | Go to Step 17 |
| 10 |
|
- | Go to Step 21 | Go to Step 11 |
| 11 | Is an audio amplifier installed in the Radio/Audio System? | - | Go to Step 12 | Go to Step 15 |
| 12 |
|
- | Go to Step 21 | Go to Step 13 |
| 13 | Test the ground circuit of the audio amplifier for high resistance or an open. Refer to CIRCUIT TESTING
and WIRING REPAIRS
in Wiring Systems. Did you find and correct the condition? |
- | Go to Step 21 | Go to Step 16 |
| 14 |
|
0.020 V | Go to Step 17 | Go to Step 16 |
| 15 | 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 21 | Go to Step 18 |
| 16 | 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 21 | Go to Step 19 |
| 17 | Inspect for poor connections at the harness connector of the appropriate speaker. 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 21 | Go to Step 20 |
| 18 | Replace the radio. Refer to Radio Replacement . Did you complete the replacement? |
- | Go to Step 21 | - |
| 19 | Replace the audio amplifier. Refer to Amplifier Replacement (Bravada, Envoy, TrailBlazer) or Amplifier Replacement (Envoy XL, TrailBlazer EXT) . Did you complete the replacement? |
- | Go to Step 21 | - |
| 20 | Replace the suspect speaker. Refer to Speaker Replacement Reference Did you complete the replacement? |
- | Go to Step 21 | - |
| 21 | Operate the system in order to verify the repair. Did you correct the condition? |
- | System OK | Go to Step 2 |