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Home >> Chrysler >> 2007 >> Crossfire Base, 2D Convertible >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Interior & Exterior - Electrical Diagnostics >> DTC Troubleshooting >> DTC 1025-00: Can B Bus (+) Circuit Failure >> Diagnostic Test

Diagnostic Test

  1. 1) MEASURE THE RESISTANCE OF THE CAN B BUS (+) CIRCUIT 
    Fig 1: Measuring Resistance Of CAN B Bus (+) Circuit
    GC0035729Courtesy of CHRYSLER LLC

    Turn the ignition off.

    Disconnect the BCM harness connector.

    Disconnect the CLP/SSM harness connector.

    NOTE: Check connectors - Clean/repair as necessary.

    Measure the resistance of the CAN B Bus (+) circuit from the BCM harness connector to the CLP/SSM harness connector.

    Is the resistance below 1.0 ohm? 

    Yes 

    1. Go to  2).

    No 

    1. Repair the CAN B Bus (+) circuit for an open.
    2. Perform BODY VERIFICATION TEST .
  2. 2) MEASURE THE VOLTAGE OF THE CAN B BUS (+) CIRCUIT 
    Fig 2: Measuring Voltage Of CAN B Bus (+) Circuit
    GC0035730Courtesy of CHRYSLER LLC

    Turn the ignition on.

    Measure the voltage of the CAN B Bus (+) circuit at the CLP/SSM harness connector.

    Is voltage present? 

    Yes 

    1. Repair the CAN B Bus (+) circuit for a short to voltage.
    2. Perform BODY VERIFICATION TEST .

    No 

    1. Go to  3).
  3. 3) MEASURE THE RESISTANCE OF THE CAN B BUS (+) CIRCUIT 
    Fig 3: Measuring Resistance Of CAN B Bus (+) Circuit
    GC0035731Courtesy of CHRYSLER LLC

    Turn the ignition off.

    Measure the resistance between ground and the CAN B Bus (+) circuit at the CLP/SSM harness connector.

    Is the resistance below 10K ohms? 

    Yes 

    1. Repair the CAN B Bus (+) circuit for a short to ground.
    2. Perform BODY VERIFICATION TEST .

    No 

    1. Replace the Central Locking Pump/Security System Module. Refer to REMOVAL .
    2. Perform BODY VERIFICATION TEST .
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