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Home >> Chrysler >> 2012 >> 300 C, RWD >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Amplifier (Amp) - Electrical Diagnostics - Except SRT8 >> DTC Troubleshooting >> B1482-00-Channel 7 Audio Speaker Output - Circuit Shorted Together >> Diagnostic Test

Diagnostic Test

  1. CHECK FOR AN INTERMITTENT CONDITION 
    1. Turn the ignition on and open one of the front doors.
      NOTE:

      A front door must remain open whenever checking or erasing Amplifier DTCs.

    2. With the scan tool, record and erase the Amplifier DTCs.
    3. Cycle the ignition switch from on to off, wait five seconds and then back to on.
    4. Turn the Radio on.
    5. Adjust the speakers to the rear and center.
    6. With the scan tool, read the active Amplifier DTCs.

      Does the scan tool display active: B1482-00-CHANNEL 7 AUDIO SPEAKER OUTPUT - CIRCUIT SHORTED TOGETHER?

      Yes 

      • Go To  2.

      No 

      • Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  2. CHECK THE OPERATION OF THE LEFT REAR SPEAKER 
    Fig 1: Checking The Operation Of The Left Rear Speaker
    GC0089685Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the Left Rear Speaker harness connector.
    3. Measure the resistance of the speaker between the two terminals.
      NOTE:

      The graphic shows the connector for reference only. Measure between the speaker terminals.

      Is the resistance of the speaker less than 1 Ohm?

      Yes 

      No 

      • Go To  3.
  3. CHECK THE (X303) AMPLIFIED LEFT REAR SPEAKER (+) CIRCUIT, AND THE (X393) AMPLIFIED LEFT REAR SPEAKER (-) CIRCUITS FOR A SHORT TOGETHER 
    Fig 2: Checking Amplified Subwoofer 1 (+) Circuit, And The Amplified Subwoofer 1 (-) Circuits For A Short Together
    GC0089708Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the Amplifier C2 harness connector.
    3. Measure the resistance between the (X303) Amplified Left Rear Speaker (+) circuit, and the (X393) Amplified Left Rear Speaker (-) circuit.

      Is the resistance below 10K Ohms?

      Yes 

      • Repair the (X303) Amplified Left Rear Speaker (+) circuit, and the (X393) Amplified Left Rear Speaker (-) circuit for a short together.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No