LEMON Manuals: Even more car manuals for everyone
Home >> Chrysler >> 2009 >> 300 Signature Series >> Repair and Diagnosis >> External Pages >> Different car >> Section 239 (Electronic Control Modules - Electrical Diagnostics) >> Electronic Control Modules - Electrical Diagnostics >> DTC Troubleshooting >> U1105-Can B Signal Missing >> 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. 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. CHECK TOTALLY INTEGRATED POWER MODULE FOR U0019 DTC 

    With the scan tool, read Totally Integrated Power Module active DTC's

    Does the scan tool display this DTC as active? 

    Yes 

    1. Refer to DIAGNOSTIC CODE INDEX and perform U0019-CAN B BUS  diagnostic procedure.

    No 

    1. Go To  3.
  3. (D55) CAN B BUS (+) CIRCUIT OPEN 
    Fig 1: Measuring Voltage Of (D55) CAN B Bus (+) Circuit
    GC0070080Courtesy of CHRYSLER LLC

    Turn the ignition off.

    Disconnect the Totally Integrated Power Module C5 connector.

    Turn the ignition on.

    Measure the voltage of the (D55) CAN B Bus (+) circuit.

    Is any voltage present on this circuit? 

    Yes 

    1. Go To  4.

    No 

    1. Repair the (D55) CAN B Bus (+) circuit for an open.
    2. Perform BODY VERIFICATION TEST - VER 1 .
  4. (D54) CAN B BUS (-) CIRCUIT OPEN 
    Fig 2: Measuring Voltage Of (D54) CAN B Bus (-) Circuit
    GC0070081Courtesy of CHRYSLER LLC

    Measure the voltage of the (D54) CAN B Bus (-) circuit.

    Is any voltage present on this circuit? 

    Yes 

    1. Replace the Totally Integrated Power Module in accordance with the service information.
    2. Perform BODY VERIFICATION TEST - VER 1 .

    No 

    1. Repair the (D54) CAN B Bus (-) circuit for an open.
    2. Perform BODY VERIFICATION TEST - VER 1 .