Mending Jeep barometric pressure sensor issue

This bulletin applies to 2018 Jeep Cherokee, Renegade, and Compass vehicles.

Related To:

June 10, 2025

The MIL may be on and the vehicle may go into limp mode due to an inaccurate barometric pressure sensor reading. DTC P2226 (barometric pressure sensor) may be set.

This bulletin applies to 2018 Jeep Cherokee, Renegade, and Compass vehicles.

This bulletin applies to KL vehicles built on or after Nov. 14, 2017, and on or before Jan. 2, 2018, equipped with a 2.4L I4 Multiair engine; BU & FB vehicles built on or after Feb. 2, 2018, and on or before March 9, 2018, also with the 2.4L engine; and MP vehicles built on or after Dec. 19, 2017, and on or before Jan. 4, 2018, with the 2.4L I4 Zero EVAP M-Air engine.

The MIL may be on and the vehicle may go into limp mode due to an inaccurate barometric pressure sensor reading. DTC P2226 (barometric pressure sensor) may be set. Perform normal diagnostics as service the baro sensor if needed.

If the vehicle is among the afore-mentioned vehicles only, the fix involves replacing the PCM.

P/N ITEM

68342093AA...............PCM control kit, KL vehicles only

68342094AA...............PCM control kit, FB & BU vehicles only

68342095AA...............PCM control kit, MP vehicles only

About the Author

Mike Mavrigian

Motor Age Editor

Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety of specialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.