Ford Workshop Service and Repair Manuals

The purpose of the starting system is to turn the engine crankshaft at a speed which enables the engine to start.

The engine is started as follows:

• Ignition/starter switch in position III.
• The starter relay is activated by the PCM .
• The solenoid is supplied with voltage.
• The solenoid engages the starter motor pinion with the flywheel ring gear.
• The solenoid applies battery current to the starter.
• The starter turns the crankshaft until the engine starts. The key can then be released and it automatically returns to position II.

The system incorporates the "Smart Starting"strategy. This makes starting faster and protects the starter.

If the driver fails to release the key immediately after the engine starts, the PCM interrupts activation of the starter relay and thus switches off the electric starter motor.

The speed signal provided by the CKP sensor is used for monitoring the starting procedure.