Grand Cherokee 2WD L6-4.0L VIN S (1997)
Manifold Pressure/Vacuum Sensor: Description and Operation
CIRCUIT OPERATION
From the Powertrain Control Module (PCM), circuit K25 supplies 5 Volts to the manifold absolute pressure (MAP) sensor. Circuit K25 connects
to cavity A17 of the PCM.
Circuit K70 delivers the MAP signal to the PCM. Circuit K70 connects to cavity A27 of the PCM.
The PCM provides a ground for the MAP sensor signal (circuit K70) through circuit K4. Circuit K4 connects to cavity A4 of the PCM.
