1995 Grand Cherokee Jeep limited edition V8 4x4 20 amp fuse labled engine central keeps burning out the jeep shuts down what is causing the fuse to burn. What will it cost and can I fix it myself?

Answer 1

the name of the circuit is engine control i believe. this circuit feeds power to the pcm ign + terminal and all the sensors that are pcm inputs as well as the trans sensors. what you do is first visually check wire harness look for any area that it may be chaffed or crushed causing a short to ground. then one sensor at a time using a circuit breaker in fuse cavity 20 amp or less unplug sensors. plug sensors back in as you go. if it doesnt go away the pcm may be suspect. unplug all connectors in pcm and see if it is gone. dont do pcm first because a bad sensor will be removed from circuit if pcm is unpluged. dont forget trans sensors prior to pcm as well.