Diagnostic Procedure
DIAGNOSTIC INFORMATION AND PROCEDURES CHART (ALL OUTPUTS SHORT - BASE AUDIO SYSTEM)
| TEST | ACTION | APPLICABILITY |
|---|---|---|
| 1 | Turn the ignition on. Turn the Radio on. With the DRBIII®, erase the audio DTC's. Cycle the ignition switch from off to on and wait 10 seconds. With the DRBIII®, read the audio DTC's. Does the DRBIII® display ALL OUTPUTS SHORT? Yes --> Go To 2 No --> Refer to SYSTEM WIRING DIAGRAMS to help isolate a possible intermittent short. Perform BODY VERIFICATION TEST - VER 1 . |
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| 2 | Turn the ignition off.
NOTE:
Perform this procedure after disconnecting each front speaker connector. Disconnect each front speaker harness connector one at a time. Turn the ignition on. Turn the radio on. With the DRBIII®, erase the audio DTCs. Cycle the ignition switch from off to on and wait 10 seconds. With the DRBIII®, read DTC's. Does the DRBIII® display ALL OUTPUTS SHORT with all the front speakers disconnected? Yes --> Go To 3 No --> Replace the Speaker that when disconnected the DTC did not reset. Perform BODY VERIFICATION TEST - VER 1 . |
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| 3 | Turn the ignition off.
NOTE:
Perform this procedure after disconnecting each rear speaker connector. Disconnect each rear speaker harness connector one at a time. Turn the ignition on. Turn the radio on. With the DRBIII®, erase the audio DTCs. Cycle the ignition switch from off to on and wait 10 seconds. With the DRBIII®, read DTC's. Does the DRBIII® display ALL OUTPUTS SHORT with all the rear speakers disconnected? Yes --> Go To 4 No --> Replace the Speaker that when disconnected the DTC did not reset. Perform BODY VERIFICATION TEST - VER 1 . |
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| 4 | Turn the ignition off. Disconnect each front and rear speaker harness connector. Disconnect the Radio harness connector. Measure the resistance between ground and each speaker (+) circuit. Is the resistance below 1000.0 (1K) ohms? Yes --> Repair the speaker (+) circuit for a short to ground. Perform BODY VERIFICATION TEST - VER 1 . No --> Go To 5 |
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| 5 | Turn the ignition off. Disconnect each front and rear speaker harness connector. Disconnect the Radio harness connector. Measure the resistance between ground and each speaker (-) circuit. Is the resistance below 1000.0 (1K) ohms? Yes --> Repair the speaker (-) circuit for a short to ground. Perform BODY VERIFICATION TEST - VER 1 . No --> Go To 6 |
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| 6 | Turn the ignition off. Disconnect each front and rear speaker harness connector. Disconnect the Radio harness connector. Measure the resistance between each speaker (+) circuit and each speaker (-) circuit. Is the resistance below 1000.0 (1K) ohms for any of the measurements? Yes --> Repair the speaker circuits shorted together. Perform BODY VERIFICATION TEST - VER 1 . No --> Go To 7 |
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| 7 | If there are no possible causes remaining, view repair. Repair Replace the Radio. Perform BODY VERIFICATION TEST - VER 1 . |
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