Focus ZX5 L4-2.0L DOHC VIN 3 (2002)
the ground point and the components are shown. These ground connection details are shown here in order to keep the individual sets of diagrams as
uncluttered as possible.
Splices with a large number of wires may be split in order to improve the graphic representation. A thin line is used to indicate the unity of the splice.
The splice is then marked with the additional text "partial".
Component Identification Information
Component Identification Information consists of
(1) A-Z Component List,
(2) Component Location Views, and
(3) Connector views (Faces).
The A-Z Component List helps the user find where the various items depicted on the diagram can physically be found on the vehicle. A brief written
description of the location is given. See: Locations/Component Locations/A-Z Component List
The Component Location Views show the components and their connecting wires as they can be found on the vehicle. See: Locations/Component
Locations/Component Location Views
The Connector Views show the views of the pins and/or cavities of all connectors. The pin and cavity sides are shown separately as if the connector
were disconnected. The color of the connector housing is indicated next to the connector number. See: Diagrams/Connector Views
Vacuum Motor Operation
Vacuum motors operate like electrical solenoids, mechanically pushing or pulling a shaft between two fixed positions. When vacuum is not applied, the
shaft is pushed all the way out by a spring.
Some vacuum motors can position the actuating arm at any position between fully extended and fully retracted. The Servo is operated by a control valve
that applies varying amounts of vacuum to the motor. The higher the vacuum level, the greater the retraction of the motor arm. Servo Motors work nearly
the same way as two-position motors, except for the way the vacuum is applied. Servo Motors are generally larger and provide a calibrated control.
A double diaphragm motor has three positions (it is actually two motors in one housing). When the top port gets vacuum, the shaft pulls halfway in.
When both ports get vacuum, the shaft pulls all the way in.
WARNINGS
^
Always wear safety glasses for eye protection.
^
Use safety stands whenever a procedure requires being under a vehicle.
^
Be sure that the Ignition Switch is always in the OFF position, unless otherwise required by the procedure.
^
Set the parking brake when working on any vehicle. An automatic transmission should be in PARK. A manual transmission should be in
NEUTRAL.
^
Operate the engine only in a well-ventilated area to avoid danger of carbon monoxide.
^
Keep away from moving parts, especially the fan and belts, when the engine is running.
^
To prevent serious burns, avoid contact with hot metal parts such as the radiator, exhaust manifold, tall pipe, catalytic converter and muffler.
^
Do not allow flame or sparks near the battery. Gases are always present in and around the battery. An explosion could occur.
^
Do not smoke when working on a vehicle.
^
To avoid injury always remove rings, watches, loose hanging jewelry and avoid wearing loose clothing.
circuit Numbering
Circuit Numbering and Wire Identification
Circuit Numbering:
Ford has introduced a world-wide uniform system for circuit numbering and wire identification.
The system is called Function, System-Connection, or FSC for short.
FSC was developed mainly to assist in vehicle development and production processes, but is also helpful in troubleshooting electrical circuits.
Function:
The first two digits identify the function of the wire. In this case, the function code includes the letter "S" to indicate it is an additionally
switched function. The function part of the circuit number is the most helpful to the technician in troubleshooting a circuit.
System-Connection (including branch):
Systems are related to subsets of the vehicle circuitry. Immediately following the system letter code is the connection number specific to
