Starting System: Other Ford Ranger II рестайлинг

Starter Motor

The starter motor

1. is a permanent-magnet, gear reduction, 12V DC motor.
2. has an integral starter solenoid.

Starter Relay

The starter relay

1. is a mini ISO relay. switches power to the starter solenoid to engage the starter motor when it is provided a ground through the PCM.

Clutch Pedal Position (CPP) Switch

The CPP switch (manual transmission only)

1. completes the circuit to the starter ISO relay and provides a signal to the PCM when the clutch pedal is depressed.

Digital Transmission Range (TR) Sensor

The digital TR sensor (automatic transmission only)

1. completes the circuit to the starter ISO relay and provides a signal to the PCM when the transmission is in PARK or NEUTRAL.

Component Tests

Note. When servicing the starter motor or carrying out other underhood work in the vicinity of the starter motor, be aware that the heavy gauge battery input lead at the starter solenoid is "electrically hot" at all times. If a tool is shorted at the starter motor battery terminal, the starter circuit may be damaged.

Note. A protective cap or boot is provided over the battery input terminal on all vehicle lines and must be reinstalled after repair. Failure to follow this instruction may result in damage to the vehicle.

Always make the Fluke 77-IV Digital Multimeter connections at the component terminal rather than at the wiring end connector. Making a connection at the wiring end connector could result in false readings because the meter will not pick up a high resistance between the wiring connector and the component.

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Scheme 32

1. Make sure the battery is fully charged. Refer to «CHARGING SYSTEM»(ref-365377) .
2. Disconnect the Inertia Fuel Shutoff (IFS) switch.
3. Connect a remote starter switch between the starter solenoid S-terminal and the battery positive (+) terminal.
4. Connect the Fluke 77-IV Digital Multimeter positive lead to the battery positive (+) post. Connect the negative lead to the starter solenoid M-terminal. ITEM DESCRIPTION CHART Item Part Number Description 1 - S-terminal 2 - Remote starter switch 3 10653 Battery 4 - Fluke 77-IV Digital Multimeter 5 - B-terminal 6 - M-terminal
5. Engage the remote starter switch. Read and record the voltage. The voltage reading should be 0.5 volt or less.
6. If the voltage reading is 0.5 volt or less, go to the «STARTER MOTOR - GROUND CIRCUIT»(ref-365425-S14081749022010070700000) Component Test.
7. If the voltage reading is greater than 0.5 volt, indicating excessive resistance, move the Fluke 77-IV Digital Multimeter negative lead to the starter solenoid B-terminal and repeat the test. If the voltage reading at the B-terminal is lower than 0.5 volt, the concern is either in the connections at the starter solenoid or in the solenoid contacts. ITEM DESCRIPTION CHART Item Part Number Description 1 - S-terminal 2 - Remote starter switch 3 10653 Battery 4 - Fluke 77-IV Digital Multimeter 5 - B-terminal 6 - M-terminal
8. Remove the cables from solenoid B- and S-terminals. Clean the cables and connections and reinstall the cables to the correct terminals. Repeat Steps 3 through 6. If the voltage drop reading is still greater than 0.5 volt when checked at the M-terminal and less than 0.5 volt when checked at the B-terminal, the concern is in the solenoid contacts. Install a new starter motor.
9. If the voltage reading taken at the solenoid B-terminal is still greater than 0.5 volt after cleaning the cables and connections at the solenoid, the concern is either in the positive (+) battery cable connection or in the positive battery cable itself.
10. By moving the Fluke 77-IV Digital Multimeter toward the battery and checking each mechanical connection point, the excessive voltage drop can be located. When the high reading disappears, the last mechanical point that was checked is the concern. Repair or install a new connection as required.

Starter Motor - Ground Circuit

A slow cranking condition can be caused by resistance in the ground or return portion of the cranking circuit. Check the voltage drop in the ground circuit as follows

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Scheme 34

1. Remove the starter motor. For additional information, refer to «STARTER MOTOR - 2.3L»(ref-365425-S14348372482010070700000) or «STARTER MOTOR - 4.0L»(ref-365425-S40371844702010070700000) .
2. Check the wear patterns on the starter drive gear and the flywheel ring gear. If the wear pattern is normal, install the starter motor. For additional information, refer to «STARTER MOTOR - 2.3L»(ref-365425-S14348372482010070700000) or «STARTER MOTOR - 4.0L»(ref-365425-S40371844702010070700000) .
3. If the starter drive gear and the flywheel ring gear are not fully meshing and both of the gears are scored or damaged, install a new starter motor. For additional information, refer to «STARTER MOTOR - 2.3L»(ref-365425-S14348372482010070700000) or «STARTER MOTOR - 4.0L»(ref-365425-S40371844702010070700000) g. If necessary, install a new flexplate or flywheel. For additional information, refer to «ENGINE - 2.3L»(ref-365364) for 2.3L engines or «ENGINE - 4.0L SOHC»(ref-365365) for 4.0L engines.

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ITEM DESCRIPTION CHART

Scheme 36

ITEM DESCRIPTION CHART