Jeep Cherokee (XJ): Fuel delivery system

Next pageDescription and operation

PCM vin reprogramming OPERATION USE THE DRB SCAN TOOL TO REPROGRAM THE NEW POWERTRAIN CONTROL MODULE (PCM) WITH THE VEHICLES ORIGINAL IDENTIFICATION NUMBER (VIN) AND THE VEHICLES ORIGINAL MILEAGE ...

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Power grounds. Power steering pressure switch- pcm input. Sensor return-pcm input
Power grounds OPERATION The Powertrain Control Module (PCM) has 2 main grounds. Both of these grounds are referred to as power grounds. All of the high-current, noisy, electrical devices are connected to these grounds as well as all of the sensor returns. The sensor return comes into the senso ...