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Home >> Jeep >> 2007 >> Compass Limited, AWD, Standard >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Audio System & Video System - Electrical Diagnostics >> Audio/Video Systems - Electrical Diagnostics >> DTC Troubleshooting >> B1477-Channel 5 Audio Speaker Output Circuit Open >> Diagnostic Test

Diagnostic Test

  1. 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: B1477-CHANNEL 5 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. 2) CHECK THE OPERATION OF THE LEFT REAR SPEAKER 
    Fig 1: Checking Amplified Left Rear Speaker Circuits
    GC0053138Courtesy of CHRYSLER LLC

    Disconnect the Left Rear 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 Left Rear Speaker circuits in the Amplified Left Rear Speaker harness connector.

    Is the voltage present greater than 1 volt? 

    Yes 

    1. Replace the Amplified Left Rear Speaker in accordance with the service information.
    2. Perform BODY VERIFICATION TEST - VER 1 .

    No 

    1. Go To  3).
  3. 3) CHECK THE (X205) AMPLIFIED LEFT REAR SPEAKER (+) CIRCUIT FOR AN OPEN 
    Fig 2: Checking (X205) Amplified Left Rear Speaker (+) Circuit
    GC0053139Courtesy of CHRYSLER LLC

    Turn the ignition off.

    Disconnect the Amplifier C2 harness connector.

    Measure the resistance of the (X205) Amplified Left Rear Speaker (+) circuit between the Amplifier C2 harness connector and the Amplified Left Rear Speaker harness connector.

    Is the resistance below 5.0 ohms? 

    Yes 

    1. Go To  4).

    No 

    1. Repair the (X205) Amplified Left Rear Speaker (+) circuit for an open.
    2. Perform BODY VERIFICATION TEST - VER 1 .
  4. 4) CHECK THE (X295) AMPLIFIED LEFT REAR SPEAKER (-) CIRCUIT FOR AN OPEN 
    Fig 3: Checking Amplified Left Rear Speaker (-) Circuit
    GC0053140Courtesy of CHRYSLER LLC

    Turn the ignition off.

    Disconnect the Amplifier C2 harness connector.

    Measure the resistance of the (X295) Amplified Left Rear Speaker (-) circuit between the Amplifier C2 harness connector and the Amplified Left Rear 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 (X295) Amplified Left Rear Speaker (-) circuit for an open.
    2. Perform BODY VERIFICATION TEST - VER 1 .
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