4. Attach the positive lead of the voltmeter to the center terminal of the map sensor. Connect the negative lead of the voltmeter to a solid ground.5.
Buttoned up this gathered erudition, the ECM directs Everyone Element of of the Engine Authority Action to either carry on its settings or adjust as bottom line.
Instructions
1. Lift the hood of your Cherokee. Establish the map sensor on the rear firewall.
2. Remove the electrical connector from the map sensor by pulling it straight down.
3. Connect the two outside-terminals of the map sensor to the matching terminals of the electrical connector. Use the two jumper-wires.
Convenience a voltmeter to analysis your map sensor.The map sensor in your Jeep Cherokee is allotment of a enormous network of sensors linked to the engine's Electronic Check Module. The ECM constantly monitors all engine motion buttoned up the supplied input of the distinct sensors.Turn on the ignition; do not start the engine. The voltage typically reads 4.5 to 5.0 volts.
6. Start the engine and let it reach operating temperature. The reading on the voltmeter is usually different from the original base reading of 4.5 to 5.0 volts. The reading optimally increases and decrease with changes in engine speed. If the readings do not change, check the vacuum hoses for damage. If the hoses are undamaged, the sensor must be replaced.
