Distributor: Description and Operation

The distributor is used for firing the spark plugs and for providing camshaft position input to the Powertrain Control Module (PCM). Circuit K44 is used to indicate to the PCM camshaft position and connects to cavity 33 of the PCM. Circuit K4 is used for the sensor return to the PCM and connects to cavity 43.

The K19 circuit is an output from the PCM to the distributor and is used for the coil driver. Grounding for the distributor is provided on circuit Z1. This circuit terminates at the left strut tower.

Battery voltage for the distributor is provided from two sources, circuits A142 and K7. The K7 circuit is an 8 volt output from the PCM. Circuit A142 is HOT when the contacts in the ASD relay are CLOSED.