For a complete wiring diagram Refer to Section 8W.When Monitored:At ignition on, after ignition on during any rolling code handshake that occurs with the PCM due to a SKIM or PCM reset.Set Condition: A valid key is recognized but the programmed VIN does not match between the WCM and PCM.Possible CausesVERIFYING PCM VINREPLACE SKREEM AND CHECK DTCSINTERMITTENT WIRING HARNESS PROBLEMPCM1. DETERMINING IF DTC IS CURRENTWith the scan tool, erase the SKREEM DTCs.Turn the ignition off.Wait 10 seconds.Turn the ignition on and wait 2 minutes.With the scan tool, read the SKREEM DTCs.Does the scan tool display the DTC that was previously erased?YesGo To 2NoGo To 42. VERIFYING THE PCM VINTurn the ignition on.With the scan tool, select Engine system from the main menu.Display and record the Vehicle Identification Number.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?YesGo To 3NoUsing the scan tool perform the PCM Replace procedure to update the VIN in the PCM.Perform SKREEM VERIFICATION TEST3. REPLACE SKREEM AND CHECK DTC'STurn the ignition off.Replace and program the Sentry Key Remote Entry Module in accordance with the Service Information.Turn the ignition on.With the scan tool, display and clear all PCM and SKREEM DTC's.Perform 5 ignition key cycles leaving the ignition key on for 90 seconds per cycle.With the scan tool, check for SKREEM DTCs.Does the scan tool display the same DTC?YesReplace and program the Powertrain Control Module in accordance with the Service Information.Perform SKREEM VERIFICATION TESTNoThe repair is complete.Perform SKREEM VERIFICATION TEST4. INTERMITTENTTurn the ignition off.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?YesRepair wiring harness/connectors as necessary.Perform SKREEM VERIFICATION TESTNoTest Complete.