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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 >> B1A28-ECM Mismatch With Skim >> 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) DETERMINING IF DTC IS CURRENT 

    With the scan tool, erase the WIN DTCs.

    Turn the ignition off.

    Wait 10 seconds.

    Turn the ignition on and wait 2 minutes.

    With the scan tool, read the WIN DTCs.

    Does the scan tool display the DTC that was previously erased? 

    Yes 

    1. Go To  2).

    No 

    1. Go To  4).
  2. 2) VERIFY THE PCM VIN 

    Turn the ignition on.

    With the scan tool, select Engine system from the main menu.

    Display and record the Vehicle Identification Number.

    NOTE: Ensure that a VIN has been programmed into the PCM. If a VIN is not displayed, attempt to program the PCM with the correct VIN before continuing.

    Does the VIN recorded from the PCM match the VIN of the vehicle? 

    Yes 

    1. Go To  3).

    No 

    1. Update the VIN in the PCM.
    2. Perform WIN VERIFICATION TEST .
  3. 3) REPLACE WIN AND CHECK DTC'S 

    Turn the ignition off.

    Replace and program the Wireless Ignition Node in accordance with the Service Information.

    Turn the ignition on.

    With the scan tool, display and clear all PCM and WIN DTC's.

    Perform 5 ignition key cycles leaving the ignition key on for 90 seconds per cycle.

    With the scan tool, check for WIN DTCs.

    Does the scan tool display the same DTC? 

    Yes 

    1. Replace and program the Powertrain Control Module in accordance with the Service Information.
    2. Perform WIN VERIFICATION TEST .

    No 

    1. The repair is complete.
    2. Perform WIN VERIFICATION TEST .
  4. 4) INTERMITTENT 

    Turn the ignition off.

    NOTE: Check for the following conditions:
    • Visually inspect the related wiring harness. Look for any chafed, pierced, pinched, or partially broken wires.
    • Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.
    • Refer to any Technical Service Bulletins (TSB) that may apply.

    Were any problems found? 

    Yes 

    1. Repair wiring harness/connectors as necessary.
    2. Perform WIN VERIFICATION TEST .

    No 

    1. Test Complete.
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