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Diagnostic Procedure

WARNING: This page is about a different car, the 2004 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
POWER AMP SHUTDOWN - PREMIUM AUDIO SYSTEM - DIAGNOSTIC PROCEDURE

TEST ACTION
1 Turn the ignition on.
Turn the Radio on.
With the DRBIII(R), erase the audio DTC's.
Cycle the ignition switch from off to on and wait 10 seconds.
With the DRBIII(R), read the audio DTC's.
Does the DRBIII(R) display POWER AMP SHUTDOWN?
  1. Yes --> Go To 2
  2. No --> Refer to the SYSTEM WIRING DIAGRAMS to help isolate a possible intermittent condition.

    Perform BODY VERIFICATION TEST - VER 1  .
2 Turn the ignition off.
Disconnect the Amplifier C2 harness connector.
Turn the ignition on.
Turn the radio on.
With the DRBIII(R), erase the audio DTCs.
Cycle the ignition switch from off to on and wait 10 seconds.
With the DRBIII(R), read DTC's.
Does the DRBIII(R) display POWER AMP SHUTDOWN?
  1. Yes --> Go To 3
  2. No --> Replace the Amplifier in accordance with the service information.

    Perform BODY VERIFICATION TEST - VER 1  .
3 Turn the ignition off.
Disconnect the Amplifier C2 harness connector.
Disconnect the Radio harness connector.
Measure the resistance between ground and any speaker (+) circuit.
Is the resistance below 1000.0 (1K) ohms?
  1. Yes --> Repair the speaker (+) circuit for a short to ground.

    Perform BODY VERIFICATION TEST - VER 1  .

  2. No --> Go To 4
4 Turn the ignition off.
Disconnect the Amplifier C2 harness connector.
Disconnect the Radio harness connector.
Measure the resistance between ground and any speaker (-) circuit.
Is the resistance below 1000.0 (1K) ohms?
  1. Yes --> Repair the speaker (-) circuit for a short to ground.

    Perform BODY VERIFICATION TEST - VER 1  .

  2. No --> Go To 5
5 Turn the ignition off.
Disconnect the Amplifier C2 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?
  1. Yes --> Repair the speaker circuits shorted together.

    Perform BODY VERIFICATION TEST - VER 1  .

  2. No --> Go To 6
6 If there are no possible causes remaining, view repair.
  1. Repair
    1. Replace the Radio.
    2. Perform BODY VERIFICATION TEST - VER 1  .
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