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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.
FRONT CHANNELS SHORTED TOGETHER OR TO GROUND - DIAGNOSTIC PROCEDURE

TEST ACTION
1
NOTE: The fault condition must be present to continue diagnosis. Use the DRB III to perform the Amplifier Pre-test to verify the fault condition is present before continuing diagnosis.
Turn the ignition off.Disconnect the Right Front Woofer harness connector.Turn the ignition on.Using the DRB III, perform the Amplifier Pre-test.Is the fault condition still present?
  1. Yes --> Go To 2
  2. No --> Replace the Right Front Woofer in accordance with the service information.

    Perform BODY VERIFICATION TEST - VER 1  .
2 Turn the ignition off.
Disconnect the Right Front Tweeter harness connector.
Turn the ignition on.
Using the DRB III, perform the Amplifier Pre-test.
Is the fault condition still present?
  1. Yes --> Go To 3
  2. No --> Replace the Right Front Tweeter in accordance with the service information.

    Perform BODY VERIFICATION TEST - VER 1  .
3 Turn the ignition off.
Disconnect the Left Front Woofer harness connector.
Turn the ignition on.
Using the DRB III, perform the Amplifier Pre-test.
Is the fault condition still present?
  1. Yes --> Go To 4
  2. No --> Replace the Left Front Woofer in accordance with the service information.

    Perform BODY VERIFICATION TEST - VER 1  .
4 Turn the ignition off.
Disconnect the Left Front Tweeter harness connector.
Turn the ignition on.
Using the DRB III, perform the Amplifier Pre-test.
Is the fault condition still present?
  1. Yes --> Go To 5
  2. No --> Replace the Left Front Tweeter in accordance with the service information.

    Perform BODY VERIFICATION TEST - VER 1  .
5 Turn the ignition off.
Disconnect the Right Front Woofer, the Right Front Tweeter, the Left Front Woofer and the Left Front Tweeter harness connectors.
Disconnect the Amplifier C1 harness connector.
Measure the resistance between ground and each of the 4 Amplified Door Speaker circuits.
Is the resistance above 1000 ohms for each of the measurements?
  1. Yes --> Go To 6
  2. No --> Repair the Amplified Door Speaker circuit that measured below 1000 ohms for a short to ground.

    Perform BODY VERIFICATION TEST - VER 1  .
6 Turn the ignition off.
Disconnect the Right Front Woofer, the Right Front Tweeter, the Left Front Woofer and the Left Front Tweeter harness connectors.
Disconnect the Amplifier C1 harness connector.
At the Amplifier C1 harness connector, measure the resistance between the Amplified Left Door Speaker (-) circuit and the following circuits: Amplified Left Door Speaker (+), Amplified Right Door Speaker (-) and Amplified Right Door Speaker (+).
Is the resistance above 1000 ohms for each of the measurements?
  1. Yes --> Go To 7
  2. No --> Repair the Amplified Door Speaker circuits that are shorted together.

    Perform BODY VERIFICATION TEST - VER 1  .
7 Turn the ignition off.
Disconnect the Right Front Woofer, the Right Front Tweeter, the Left Front Woofer and the Left Front Tweeter harness connectors.
Disconnect the Amplifier C1 harness connector.
At the Amplifier C1 harness connector, measure the resistance between the Amplified Left Door Speaker (+) circuit and the following circuits: Amplified Right Door Speaker (-) and Amplified Right Door Speaker (+).
Is the resistance above 1000 ohms for each of the measurements?
  1. Yes --> Go To 8
  2. No --> Repair the Amplified Door Speaker circuits that are shorted together.

    Perform BODY VERIFICATION TEST - VER 1  .
8 Turn the ignition off.
Disconnect the Right Front Woofer and the Right Front Tweeter harness connectors.
Disconnect the Amplifier C1 harness connector.
At the Amplifier C1 harness connector, measure the resistance between the Amplified Right Door Speaker (+) circuit and Amplified Right Door Speaker (-) circuit.
Is the resistance above 1000 ohms?
  1. Yes --> Replace the Amplifier in accordance with the service information.

    Perform BODY VERIFICATION TEST - VER 1  .

  2. No --> Repair the Amplified Door Speaker circuits that are shorted together.

    Perform BODY VERIFICATION TEST - VER 1  .
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