2500 4x4 Pickup V8-318 5.2L Magnum (1995)
Oxygen Sensor: Description and Operation
When the Powertrain Control Module (PCM) grounds the Automatic Shut Down (ASD) relay, the contacts close and connect circuits A14 and A142.
Circuit A142 supplies battery voltage to the heated oxygen sensor.
Circuit K41 delivers the signal from the heated oxygen sensor to the PCM. Circuit K41 connects to cavity 41 of the PCM.
The PCM provides a ground for the heated oxygen sensor signal (circuit K41) through circuit K4. Circuit K4 connects to cavity 4 of the PCM connector.
Circuit Z11 provides a ground for the heater circuit in the sensor.
