This bulletin applies to 2012-2014 Jeep Compass/Patriot vehicles. The MIL may be on accompanied by DTC P0335 (crankshaft position sensor circuit), U0140 (lost communication with body control module) and P219A (air-fuel ratio cylinder imbalance, bank 1).
The engine, if designed for E15 fuel, may be hard to start at cold temperatures of -20 degrees Fahrenheit. Reprogram the PCM with the latest software and clear all DTCs.
About the Author
Information courtesy of Mitchell 1
Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.
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.