Jeep Grand Cherokee SKIM Key & WIN Immobilizer Delete Service

Did you replace the PCM/ECU in your Jeep Grand Cherokee only to have the engine start and then immediately stall? A faulty SKIM (Sentry Key Immobilizer Module) or WIN (Wireless Ignition Node) often blocks the PCM from allowing the engine to run. Our in-house SKIM / WIN Immobilizer Delete Service permanently removes this security programming from your Grand Cherokee PCM.

What This Service Does

• SKIM / WIN Removal — disables the factory immobilizer to eliminate no-start conditions
• VIN Re-Write — your VIN is written back into the PCM after security removal
• Permanent Fix — allows PCM swaps without triggering immobilizer issues

Important Notes

• SKIM/WIN Module Handling — the SKIM/WIN module must be unplugged before installing a PCM with security cleared (2007+ WIN systems may have specific handling)
• Security Light — some vehicles may still show the security light after SKIM delete; this does not affect drivability
• Plug & Play — most SKIM-cleared PCMs are install-ready; in rare cases a global code clear is needed before the vehicle starts

How SKIM/Immobilizer Works

Every Jeep PCM is SKIM-capable, even if the vehicle did not originally include the system. Once activated, the PCM always looks for a SKIM/WIN signal. By clearing the SKIM function, the PCM will operate normally without the immobilizer system. Both security and non-security keys can be used with a SKIM-cleared PCM.

Turnaround & Shipping

• Mail-in Service — ship us your Grand Cherokee PCM/ECU
• Processing Time — 2–3 business days once received (return shipping included; customer covers shipping to us)
• Include in the Box — Full Name, Return Address, Phone/Email, and VIN number

Compatible OEM Part Numbers

• P56040659
• 56045275AB, 56045275AC

Compatible OEM Part Numbers (2005–2010)

• 5026182AF
• 05026218AP, 05026218AQ, 05026218AR, 05026218AS

Compatible OEM Part Numbers (2011–2025)

• 68066724AC, 68066724AD, 68066724AE, 68066724AF, 68066724AG
• 68210151AA, 68210151AB, 68210151AC
• 68241109AA, 68241109AB, 68241109AC

MoPower Calibrations LLC is not affiliated with or endorsed by Chrysler, Dodge, Jeep, Ram, or Stellantis. All product names, trademarks, and brands are property of their respective owners. For off-road/competition use where required by law.