Chat with us, powered by LiveChat Jeep ECU - Electronic Control Unit Reset | Quadratec Skip to main content
Reference
The Electronic Control Module, or ECU as it is most commonly called, is a generic term used for any embedded system within a vehicle that controls one or more electric system(s) or subsystem(s).  The following sequence is used to reset the ECM or PCM as it is sometimes refered too.


1. Disconnect the battery by removing the Negative battery cable (This will ensure that any possibility of grounding the power side to the vehicle [or yourself - think wedding ring] does not happen.)

2. Disconnect the Positive battery cable

3. Allow a few moments to pass before reconnecting the cables

4. Reconnect the positive cable to the battery

5. Reconnect the negative cable to the battery

6. Turn the Vehicle on


The ECM parameters for all sensor calibration monitors have now been reset.  It can take anywhere from a few minutes to a few days for all of the system parameters to be restored within the unit.

Top Jeep Articles

  • June 20, 2025
  • 4 min read
Seven Slot Dispatch — 6.20.25
Weekly Jeep-related news items from around the industry and community.
READ MORE
  • June 19, 2025
  • 4 min read
Jeep Towing Q&A
Everything Jeep Owners Need to Know About Hauling Campers, Trailers & Gear
READ MORE
  • June 16, 2025
  • 4 min read
How To Clean Your Jeep's Neoprene Seat Covers
While easy to install and remove, these comfortable protective items do need a little attention when washing to ensure a long lifespan.
READ MORE
  • June 13, 2025
  • 5 min read
Seven Slot Dispatch — 6.13.25
Weekly Jeep-related news items from around the industry and community.
READ MORE
  • June 11, 2025
  • 6 min read
Jeep Exhaust Q&A
Top Jeep exhaust questions and answers when upgrading to an aftermarket kit.
READ MORE
  • June 9, 2025
  • 10 min read
Built for Dad: 15 Jeep Gifts That Say “Thanks for the Adventure”
Top product ideas for the father in your life.
READ MORE