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Diagnostic Test

  1. CHECK FOR AN INTERMITTENT CONDITION 

    Turn the ignition on.

    Turn the radio on.

    With the scan tool, erase Amplifier DTCs.

    With the scan tool, reset the amplifier.

    With the scan tool, read Amplifier DTCs.

    Does the scan tool display active: B1472-CHANNEL 4 AUDIO SPEAKER OUTPUT CIRCUIT OPEN? 

    Yes 

    1. Go To  2.

    No 

    1. The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
    2. Perform BODY VERIFICATION TEST - VER 1 .
  2. CHECK THE OPERATION OF THE RIGHT FRONT DOOR SPEAKER 
    Fig 1: Measuring Voltage Of Amplified Right Front Door Speaker Circuits In Amplified Right Front Door Speaker Harness Connector
    GC0041300Courtesy of CHRYSLER LLC

    Disconnect the Right Front Door Speaker harness connector.

    Turn the radio on and turn the volume to mid level.

    With a voltmeter set to read in A/C voltage, measure the voltage of the Amplified Right Front Door Speaker circuits in the Amplified Right Front Door Speaker harness connector.

    Is the voltage present greater than 1 volt? 

    Yes 

    1. Replace the Amplified Right Front Door Speaker in accordance with the service information.
    2. Perform BODY VERIFICATION TEST - VER 1 .

    No 

    1. Go To  3.
  3. CHECK THE (X154) AMPLIFIED RIGHT FRONT DOOR SPEAKER (-) CIRCUIT FOR AN OPEN 
    Fig 2: Measuring Resistance Of (X154) Amplified Right Front Door Speaker (-) Circuit Between Amplifier C2 Harness Connector And Amplified Right Front Door Speaker Harness Connector
    GC0041301Courtesy of CHRYSLER LLC

    Turn the ignition off.

    Disconnect the Amplifier C2 harness connector.

    Measure the resistance of the (X154) Amplified Right Front Door Speaker (-) circuit between the Amplifier C2 harness connector and the Amplified Right Front Door Speaker harness connector.

    Is the resistance below 5.0 ohms? 

    Yes 

    1. Go To  4.

    No 

    1. Repair the (X154) Amplified Right Front Door Speaker (-) circuit for an open.
    2. Perform BODY VERIFICATION TEST - VER 1 .
  4. CHECK THE (X156) AMPLIFIED RIGHT FRONT DOOR SPEAKER (+) CIRCUIT FOR AN OPEN 
    Fig 3: Measuring Resistance Of (X156) Amplified Right Front Door Speaker (+) Circuit Between Amplifier C2 Harness Connector And Amplified Right Front Door Speaker Harness Connector
    GC0041302Courtesy of CHRYSLER LLC

    Turn the ignition off.

    Disconnect the Amplifier C2 harness connector.

    Measure the resistance of the (X156) Amplified Right Front Door Speaker (+) circuit between the Amplifier C2 harness connector and the Amplified Right Front Door Speaker harness connector.

    Is the resistance below 5.0 ohms? 

    Yes 

    1. Replace the amplifier in accordance with the service information.
    2. Perform BODY VERIFICATION TEST - VER 1 .

    No 

    1. Repair the (X156) Amplified Right Front Door Speaker (+) circuit for an open.
    2. Perform BODY VERIFICATION TEST - VER 1 .
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