Frequently Asked Questions
A Powertrain Control Module (PCM) is the primary computer that controls your Jeep's engine and transmission. It manages fuel injection, ignition timing, emissions controls, idle speed, and automatic transmission shifting. When your PCM fails, your Jeep may not start, run poorly, shift erratically, or display multiple warning lights on the dashboard.
Common symptoms of a failing PCM include: multiple unrelated check engine codes appearing simultaneously, intermittent no-start conditions that clear on their own, erratic transmission shifting or limp mode, stalling at idle that worsens when warm, and complete loss of communication with OBD-II scan tools. If your mechanic has ruled out sensors, wiring, and mechanical issues, the PCM is the likely culprit.
Every Jeep PCM contains vehicle-specific calibration data and anti-theft codes tied to your VIN (Vehicle Identification Number). When we pre-program a PCM to your VIN, we load the exact calibration your vehicle needs and sync the immobilizer system to your existing keys. This means you can install it yourself without any dealer programming — true plug and play.
Yes. We pre-sync the anti-theft immobilizer system (SKIM, SKREEM, or WIN module depending on your Jeep's year) to your vehicle during programming. Your existing keys and key fobs will work immediately upon installation with no additional steps required.
Most Jeep PCM installations take 15-30 minutes with basic hand tools (8mm or 10mm socket wrench and a flathead screwdriver). The PCM is typically located in the engine bay near the battery or on the inner fender. Simply disconnect the battery, swap the old module for the new one, reconnect, and start your Jeep.
Every PCM includes a FREE lifetime warranty against manufacturing defects, programming errors, and internal component failure under normal use. If your PCM ever fails, we replace it at no cost including free shipping. We also offer a 60-day no-questions-asked money-back guarantee if you're not satisfied for any reason.
Orders placed before 2:00 PM EST on business days ship the same day. We ship via USPS Priority Mail (2-5 business days, free) or UPS 2-Day ($29.99). Tracking is provided via email as soon as your order ships. Most customers receive their PCM within 3-4 business days of ordering.