Manifold Pressure/Vacuum Sensor: Description and Operation

CIRCUIT OPERATION
From the Powertrain Control Module (PCM), circuit K6/K7 supplies 5 Volts to the Manifold Absolute Pressure (MAP) sensor. Circuit K7 connects to cavity 17 of the PCM connector.

Circuit K1 delivers the MAP signal to the PCM. Circuit K1 connects to cavity 27 of the PCM connector.

The PCM provides a ground path for the MAP signal (circuit K1) through circuit K4. Circuit K4 connects to cavity 4 of the PCM connector.