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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 141 (Ram Pickup - Amplifier (Amp) - Electrical Diagnostics) >> DTC Troubleshooting >> B1473-Channel 4 Audio Speaker Output Circuit Shorted Together >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2012 RAM Pickup and 2012 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  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 DTC's.

    2. With the scan tool, record and erase the Amplifier DTC's.
    3. Cycle the ignition switch from on to off, wait five seconds and then back to on.
    4. Turn the Radio on and set the volume to 20.
    5. Adjust the speakers to the front and center.
    6. With the scan tool, read the active Amplifier DTC's.

      Does the scan tool display active: B1473-CHANNEL 4 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 RIGHT FRONT DOOR SPEAKER 
    Fig 1: Checking The Operation Of The Right Front Door Speaker
    GC0089674Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the Right Front Door Speaker.
    3. Measure the resistance of the speaker between the two terminals.
      NOTE:

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

      Is the resistance of the speaker less than 1 Ohm?

      Yes 

      • Replace the Right Front Door Speaker in accordance with the Service Information.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No 

      • Go To  3.
  3. CHECK THE (X202) RIGHT FRONT DOOR SPEAKER (+) CIRCUIT, AND THE (X292) RIGHT FRONT DOOR SPEAKER (-) CIRCUITS FOR A SHORT TOGETHER 
    Fig 2: Checking Right Front Door Speaker (+) Circuit, And The Right Front Door Speaker (-) Circuits For A Short Together
    GC0089675Courtesy of CHRYSLER GROUP, LLC
    1. Disconnect the Amplifier C2 harness connector.
    2. Measure the resistance between the (X202) Right Front Door Speaker (+) circuit, and the (X292) Right Front Door Speaker (-) circuit.

      Is the resistance below 10K Ohms?

      Yes 

      • Repair the (X202) Right Front Door Speaker (+) circuit, and the (X292) Right Front Door Speaker (-) circuit for a short together.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No 

      • Replace the Amplifier in accordance with the Service Information.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .