B2205 Original VIN Missing/Mismatch
December 06, 2017
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B2205 Original VIN Missing/Mismatch - At ignition on, after ignition on during any rolling code handshake that occurs with the Powertrain Control Module (PCM) due to a Sentry Key Remote Entry Module (SKREEM) also known as the Wireless Control Module (WCM) or PCM reset.
Set conditions DTC B2205 Original VIN MissingMismatch
A valid key is recognized but the programmed VIN does not match between the WCM and PCM/ECM.
Possible causes B2205 Original VIN MissingMismatch
- Verifying PCM VIN.
- Intermittent wiring harness problem.
- PCM.
Diagnose DTC B2205 Original VIN MissingMismatch
Step 1. Determining if DTC is current
With the scan tool, erase WCM DTCs. Turn the ignition off, wait 10 seconds. Turn the ignition on wait 2 minutes, with the scan tool read the WCM DTCs.
Does the scan tool display the DTC that was previously erased?
YES, go to step 2.
NO, go to step 4.
Step 2. Verifying the PCM VIN
Turn the ignition on, with the scan tool, select engine system from the main menu. Display and record the VIN.
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, go to step 3.
NO, replace and program the Wireless Control Module (WCM). Perform the WCM system verification.
Step 3. Replace WCM and check DTCs
Turn the ignition off, replace and program the SKREEM. Turn the ignition on, with the scan tool, display and clear all PCM and WCM DTCs. Perform 5 ignition key cycles leaving the ignition key on for 90 seconds per cycle. With the scan tool, check for WCM DTCs.
Does the scan tool display the same DTC?
YES, replace and program the Powertrain Control Module (PCM). Perform the WCM system verification.
NO, the repair is complete.
Step 4. Intermittent
Turn the ignition off.
Note: Check for the following conditions:
Step 3. Replace WCM and check DTCs
Turn the ignition off, replace and program the SKREEM. Turn the ignition on, with the scan tool, display and clear all PCM and WCM DTCs. Perform 5 ignition key cycles leaving the ignition key on for 90 seconds per cycle. With the scan tool, check for WCM DTCs.
Does the scan tool display the same DTC?
YES, replace and program the Powertrain Control Module (PCM). Perform the WCM system verification.
NO, the repair is complete.
Step 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 that may apply.
Were any problems found?
YES, repair wiring harness/connector as necessary.
NO, test complete.
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