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Home >> Jaguar >> 2002 >> S-Type Base, 4.0 P >> Repair and Diagnosis >> Electrical >> Starters >> Description & Operation >> Notes

Description & Operation: Notes

The function of the starting system is to crank the engine fast enough to allow the engine to start. Heavy cables, connectors and switches are used in the system because of the large currents required.

The starting system consists of a pre-engaged type starter motor, battery, ignition switch and relay. When the starter is operated from the ignition switch, the engagement lever moves the pinion into mesh with the engine ring gear teeth, the electrical contacts within the solenoid completing the high power circuit, operating the starter to turn the engine.

A transmission range sensor, attached to the transmission, prevents operation of the starter motor unless NEUTRAL or PARK positions are selected.

The sequence of operation is as follows: