Car make
Jeep fault-code cases
4 real Jeep diagnoses from WrenchLane, newest first: the car, the codes, the causes ranked and the checks to do first.
4 cases
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Diagnosing P023800 on a 2018 Jeep Renegade
A 2018 Jeep Renegade arrived in limp mode with a P023800 fault code. We look at the diagnostic path for the 1.6 MultiJet boost pressure sensor. -
Diagnosing P0440 and an Extended Crank on a 2015 Grand Cherokee
Explore a real diagnostic case on a 2015 Jeep Grand Cherokee with a P0440 EVAP code and a 5-second extended crank. See the top ranked root causes and tests. -
Diagnosing a P0D9200 Charge Lock Failure on a Jeep Compass
Learn how to diagnose a P0D9200 battery charger coupler lock failure on a Jeep Compass. Step-by-step tests for actuators, wiring shorts, and mechanical binds. -
Diagnosing P3449 and P0307 on a 2011 Jeep Grand Cherokee IV
Explore a real diagnostic case on a 2011 Jeep Grand Cherokee IV with P3449 and P0307 codes. Learn why MDS solenoids fail and how to test the components.