2C MAP Sensor Signal Circuit Wire

1. With ignition switch in the OFF position, remove manifold absolute pressure sensor from logic module.
2. Disconnect MAP sensor connector, then connect a voltmeter between white and black wires of MAP sensor harness connector.
3. Turn the ignition switch to the RUN position.
4. If voltmeter indicates less than 4 volts, replace logic module.
5. If voltmeter indicates at least 4 volts, replace MAP sensor.