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Home >> Chrysler >> 2011 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 488 ((Totally Integrated Power Module (TIPM) - Electrical Diagnostics)) >> DTC Troubleshooting >> U1105-Can B Signal Missing >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2013 Dodge Avenger and 2013 Chrysler 200. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC)S 
    NOTE:

    Check for any Technical Service Bulletins (TSBs) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing.

    1. With the scan tool, read the active DTCs.
    2. Cycle the ignition switch from off to on at least five times, leaving the ignition on for a minimum of 90 seconds per cycle.
    3. With the scan tool, read the active DTCs.

      Does the scan tool display this DTC as active?

      Yes 

      • Go To  2

      No 

      • 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 THE MODULE FOR DTC U0019 
    1. With the scan tool, read the active DTCs on the module that set the U1105 DTC.

      Does the scan tool display U0019-CAN B BUS as ACTIVE?

      Yes 

      No 

      • Go To  3
  3. (D55) CAN B BUS (+) CIRCUIT OPEN 
    Fig 1: Measuring Voltage Of CAN B Bus (+) Circuit
    GC0100295Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the TIPM C3 harness connector.
    3. Turn the ignition on.
    4. Measure the voltage of the (D55) CAN B Bus (+) circuit.

      Is there any voltage present?

      Yes 

      • Go To  4

      No 

      • Repair the (D55) CAN B Bus (+) circuit for an open.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  4. (D54) CAN B BUS (-) CIRCUIT OPEN 
    Fig 2: Measuring Voltage Of CAN B Bus (-) Circuit
    GC0100296Courtesy of CHRYSLER GROUP, LLC
    1. Measure the voltage of the (D54) CAN B Bus (-) circuit.

      Is there any voltage present?

      Yes 

      • Replace the module that set this DTC in accordance with the Service Information.
      • Perform the appropriate verification test for the module being replaced. If there is no verification test for the associated module perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Repair the (D54) CAN B Bus (-) circuit for an open.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .