Contents Wiring diagrams Section: Starter All sections

Starting System: Specifications Ford Focus II facelift

Starter 2 illustrations ~475 words

TORQUE SPECIFICATIONS

DescriptionNm
Power steering tube bracket nut20
Starter motor bolt and stud bolt35
Starter motor solenoid battery cable nut12
Starter motor solenoid wire nut5

TORQUE SPECIFICATIONS

The starting system consists of the following

  1. Starter motor
  2. Starter motor relay
  3. Transmission range (TR) sensor - automatic transmission only
  4. Clutch cutoff switch - manual transmission only
  5. Battery
  6. Ignition switch
  7. PCM
  8. Start diode (battery junction box [BJB])

When the starter solenoid is energized, a magnetic field is created in the starter solenoid windings. The iron plunger core is drawn into the starter solenoid coil, and a drive lever and pin connected to the starter drive engages the drive pinion gear to the flywheel/flexplate ring gear. When the plunger is pulled all the way in, its contact disc closes the circuit between the battery and the motor feed terminals. This sends current to the motor and the drive pinion gear cranks the flywheel/flexplate to start the engine. When current flows to the starter motor, the starter solenoid pull-in coil is bypassed and the hold-in coil keeps the drive pinion gear engaged with the flywheel/flexplate.

An overrunning clutch in the starter drive protects the starter motor from excessive speeds during the brief period before the driver releases the ignition switch from the START position as the engine starts.

Vehicles equipped with an automatic transaxle use a TR sensor located on the transaxle. The TR sensor prevents operation of the starter motor unless NEUTRAL or PARK is selected.

Vehicles equipped with a manual transaxle have a CPP switch in the starter control circuit, which prevents operation of the starter motor unless the clutch pedal is in the applied position.

The vehicle has one-touch integrated start (OTIS), a computer-assisted cranking system. This feature assists in starting the engine. If the ignition key is turned to the START position and released when the engine begins cranking, the engine may continue cranking for up to 10 seconds or until the vehicle starts.

One-Touch Integrated Start (OTIS)

Note. One-touch integrated start (OTIS) will not be available for manual transaxle vehicles until January 2008.

Once the ignition is turned to the START position and the vehicle is in NEUTRAL or PARK or clutch pedal is depressed, the PCM reads starter motor request (SMR) from the ignition switch and gains control of the starter engagement. The customer is no longer in the loop after the initial crank request, the customer may release the key to the RUN/START position. The PCM will disengage the starter motor based on the following events

  1. The engine is started (RPM threshold)
  2. A set time has been exceeded (calibrated)
  3. The ignition key has been turned to the OFF position

SPECIAL TOOLS - STARTING SYSTEM Illustration Tool Name Tool Number 73III Automotive Meter 105-R0057 or equivalent Flex Probe Kit 105-R025C or equivalent Vehicle Communication Module (VCM) and Integrated Diagnostic System (IDS) software with appropriate hardware, or equivalent scan tool

Scheme 1

Scheme 1: Starting System

Scheme 2

Scheme 2