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Home >> Chrysler >> 2009 >> 300 Signature Series >> Repair and Diagnosis >> External Pages >> Different car >> Section 256 (Vehicle Theft Security System - Electrical Diagnostics) >> Vehicle Theft Security - Electrical Diagnostics >> DTC Troubleshooting >> U0019-Can B Bus - Win >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2008 Dodge Magnum, 2008 Dodge Charger, and 2008 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.
  1. 1) CHECK FOR ACTIVE DTCS 

    With the scan tool, read the active DTC's.

    Cycle the ignition switch from off to on at least 5 times, leaving the ignition on for a minimum of 90 seconds per cycle.

    With the scan tool, read the active DTC's.

    Does the scan tool display this DTC as active? 

    Yes 

    1. Go To  2).

    No 

    1. If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.
  2. 2) CHECK FRONT CONTROL MODULE DTCs 

    With the scan tool, read TIPM active DTCs

    Does the scan tool display any CAN C BUS DTCs - ACTIVE? 

    Yes 

    1. Refer to DIAGNOSIS AND TESTING .

    No 

    1. Go To  3).
  3. 3) (D65) CAN C BUS (+) CIRCUIT OPEN 
    Fig 1: Measuring Resistance Of (D65) Can C Bus (+) Circuit Between TIPM C6 Connector & Wireless Ignition Node Connector
    GC0070149Courtesy of CHRYSLER LLC

    Turn the ignition off.

    Disconnect the negative battery cable.

    Disconnect the Wireless Ignition Node connector.

    Disconnect the TIPM C6 connector.

    Measure the resistance of the (D65) CAN C Bus (+) circuit between the TIPM C6 connector and the Wireless Ignition Node connector.

    Is the resistance below 2.0 ohms? 

    Yes 

    1. Go To  4).

    No 

    1. Repair the (D65) CAN C Bus (+) circuit for an open.
    2. Perform BODY VERIFICATION TEST - VER 1 .
  4. 4) (D64) CAN C BUS (-) CIRCUIT OPEN 
    Fig 2: Measuring Resistance Of (D64) Can C Bus (-) Circuit Between TIPM C6 Connector & Wireless Ignition Node Connector
    GC0070150Courtesy of CHRYSLER LLC

    Measure the resistance of the (D64) CAN C Bus (-) circuit between the TIPM C6 connector and the Wireless Ignition Node connector.

    Is the resistance below 2.0 ohms? 

    Yes 

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

    No 

    1. Repair the (D64) CAN C Bus (-) circuit for an open.
    2. Perform BODY VERIFICATION TEST - VER 1 .
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