1989 FORD FIESTA sensor

4If the battery and all connections are in
good condition, check the circuit by
disconnecting the wire from the solenoid
blade terminal. Connect a voltmeter or test
lamp between the wire end and a good earth
(such as the battery negative terminal), and
check that the wire is live when the ignition
switch is turned to the “start” position. If it is,
then the circuit is sound - if not the circuit
wiring can be checked as described in
Chapter 12.
5 The solenoid contacts can be checked by
connecting a voltmeter or test lamp between
the battery positive feed connection on the
starter side of the solenoid, and earth. When
the ignition switch is turned to the “start”
position, there should be a reading or lighted
bulb, as applicable. If there is no reading or
lighted bulb, the solenoid is faulty and should
be renewed.
6 If the circuit and solenoid are proved
sound, the fault must lie in the starter motor.
In this event, it may be possible to have the
starter motor overhauled by a specialist, but
check on the cost of spares before proceeding, as it may prove more economical
to obtain a new or exchange motor.
9 Starter motor
-
removal and refitting
1
Removal
1 Disconnect the battery negative (earth) lead
(refer to Section 1).
2 Chock the rear wheels then jack up the
front of the car and support it on axle stands
(see “Jacking and vehicle support” ). Remove
the front roadwheels.
3 Undo the two retaining nuts, and remove
the starter motor heat shield (where fitted).
4 Prise free the cap, if fitted, then unscrew the
nuts to disconnect the wiring from the
starter/solenoid terminals. Where applicable,
disconnect the oxygen sensor wiring multi-plug
from the locating bracket (see illustration).
5 Unscrew and remove the starter motor
retaining bolts at the transmission/clutch housing and, where applicable, also unbolt
and detach the support bracket. Withdraw the
starter motor from its mounting, and remove it
from the vehicle
(see illustrations) .
Refitting
6Refitting is a reversal of removal. Tighten
the retaining bolts to the specified torque.
Ensure that the wiring is securely reconnected
to the starter motor (and solenoid) and is
routed clear of the exhaust downpipe.
10 Starter motor - testing and overhaul
4
If the starter motor is thought to be suspect, it
should be removed from the vehicle and taken
to an auto-electrician for testing. Most auto-
electricians will be able to supply and fit
brushes at a reasonable cost. However, check
on the cost of repairs before proceeding as it
may prove more economical to obtain a new
or exchange motor.
Starting and charging systems 5A•7
9.5b Starter motor rear support bracket
and fasteners (arrowed)9.5a Starter motor retaining bolts9.4 Disconnecting the wires from thestarter motor solenoid
5A
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5B
1595Ford Fiesta Remake
General
System type:1.0, 1.1 and 1.3 litre HCS engines with carburettor . . . . . . . . . . . . . . Distributorless ignition system (DIS) controlled by ignition module
1.1 and 1.3 litre HCS engines with CFi fuel injection . . . . . . . . . . . . . Electronic distributorless ignition system (E-DIS) with ignition module controlled by EEC IV engine management module
1.4 litre CVH engines with carburettor: Early models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . Distributor, with integral ignition amplifier module
Later models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . Distributorless ignition system (DIS) controlled by ignition module
1.6 litre CVH engines with carburettor . . . . . . . . . . . . . . . . . . . . . . . . Distributor, with integral ignition amplifier module
1.4 litre CVH engines with CFi fuel injection: Pre-September 1990 models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Distributor, with ignition module, controlled by EEC IV engine
management module
September 1990 models onward . . . . . . . . . . . . . . . . . . . . . . . . . . Electronic distributorless ignition system (E-DIS) with ignition module controlled by EEC IV engine management module
1.6 litre CVH engines with EFi fuel injection, and all PTE and Zetec
engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . Electronic distributorless ignition system (E-DIS) with ignition module controlled by EEC IV engine management module
Firing order: HCS engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . 1-2-4-3
All other engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . 1-3-4-2
Location of No 1 cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
Crankshaft pulley end
Ignition coil
All engines with distributor ignition systems:
Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . 30.0 kilovolts (minimum)
Primary resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . 0.72 to 0.88 ohms
Secondary resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. 4500 to 7000 ohms
All engines with distributorless ignition systems: Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . 37.0 kilovolts (minimum)
Primary resistance (measured at coil tower) . . . . . . . . . . . . . . . . . . . . 0.5 to 1.0 ohm
Distributor
Make:
1.4 and 1.6 litre carburettor models . . . . . . . . . . . . . . . . . . . . . . . . . . Lucas
1.4 litre CFi fuel injection models (pre-September 1990) . . . . . . . . . . Bosch
Direction of rotor arm rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Anti-clockwise (viewed from cap)
Automatic advance method: 1.4 and 1.6 litre carburettor models . . . . . . . . . . . . . . . . . . . . . . . . . . Mechanical and vacuum
1.4 litre CFi fuel injection models (pre-September 1990) . . . . . . . . . . Totally controlled by EEC IV engine management module
Heat sink compound for ignition amplifier module (Lucas distributor) . . Ford part number 81 SF-12103-AA
Chapter 5 Part B:
Ignition system
Crankshaft position sensor - removal and refitting . . . . . . . . . . . . . . 6
Distributor cap and rotor arm - removal and refitting . . . . . . . . . . . . 7
Distributor vacuum diaphragm unit - renewal . . . . . . . . . . . . . . . . . . 9
Distributor - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
General information and precautions . . . . . . . . . . . . . . . . . . . . . . . . 1
Ignition coil - checking, removal and refitting . . . . . . . . . . . . . . . . . . 3 Ignition module - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . 5
Ignition system - testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Ignition timing - checking and adjustment . . . . . . . . . . . . . . . . . . . . 10
Ignition amplifier module (distributor ignition systems) -
removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Spark plug renewal . . . . . . . . . . . . . . . . . . . . . . . . . . . . .See Chapter 1
5B•1
Specifications Contents
Easy, suitable for
novice with little
experience Fairly easy,
suitable
for beginner with
some experience Fairly difficult,
suitable for competent
DIY mechanic
Difficult,
suitable for
experienced DIY
mechanic Very difficult,
suitable for expert DIY
or professional
Degrees of difficulty
54321
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Ignition timing
1.4 and 1.6 litre carburettor models with distributor:For use with 4-star leaded petrol (97 RON) . . . . . . . . . . . . . . . . . . . . 12°BTDC at idle speed (vacuum pipe disconnected and plugged)
For use with unleaded petrol (95 or 98 RON) . . . . . . . . . . . . . . . . . . . 8° BTDC at idle speed (vacuum pipe disconnected and plugged)
1.4 litre CFi fuel injection models with distributor (pre-Sept 1990) . . . . 10°BTDC at idle speed (set using STAR test equipment - refer to text)
All other models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . Totally controlled by ignition module or EEC IV engine management module
Spark plugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . See Chapter 1 Specifications
Torque wrench settingsNmlbf ft
Crankshaft position sensor (all engines except Zetec) . . . . . . . . . . . . . . 3 to 4 2 to 3
Crankshaft position sensor to bracket (Zetec engines) . . . . . . . . . . . . . 7 to 9 5 to 7
Crankshaft position sensor bracket to engine (Zetec engines) . . . . . . . 18 to 23 13 to 17
DIS/E-DIS ignition coil to bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 to 7 4 to 5
DIS/E-DIS ignition coil bracket to engine (all engines except Zetec) . . . 9 to 12 7 to 9
DIS/E-DIS ignition coil bracket to engine (Zetec engines) . . . . . . . . . . . 18 to 23 13 to 17
5B•2 Ignition system
1595Ford Fiesta Remake
1 General information and
precautions
General information
The ignition system is responsible for
igniting the air/fuel mixture in each cylinder, at
the correct moment in relation to engine
speed and load, as the electrical spark
generated jumps the spark plug gap. The ignition system is based on feeding low
tension (LT) voltage from the battery to the
ignition coil where it is converted to high
tension (HT) voltage. The high tension voltage
is powerful enough to jump the spark plug
gap in the cylinders many times a second
under high compression pressures, providing
that the system is in good condition. A number of different ignition systems have
been fitted to Fiesta models depending on the
year of manufacture, type of fuel system fitted
and the emission level that the vehicle has
been designed to meet. Broadly speaking the
systems can be sub-divided into two
categories - distributor ignition systems and
distributorless ignition systems. One version of the distributor ignition
system is fitted to all CVH engines with
carburettors. A second (more sophisticated)
version is fitted to pre-September 1990 CVH
engines with CFi fuel injection. Distributorless ignition systems are fitted to
all HCS, PTE and Zetec engines, and to all
CVH engines with fuel injection except pre-
September 1990 CFi versions.
Distributor ignition systems (CVH
engines with carburettor)
The ignition system is divided into two
circuits; low tension (primary) and high
tension (secondary). The low tension circuit
consists of the battery, ignition switch, coil
primary windings, ignition amplifier module
and the signal generating system inside the distributor. The signal generating system
comprises the trigger coil, trigger wheel,
stator, permanent magnet and trigger coil to
ignition amplifier module connector. The high
tension circuit consists of the coil secondary
windings, the HT lead from the coil to the
distributor cap, the distributor cap, the rotor
arm, the HT leads from the distributor cap to
the spark plugs and the spark plugs
themselves.
When the system is in operation, low
tension voltage is changed in the coil into high
tension voltage by the action of the electronic
amplifier module in conjunction with the signal
generating system. Any change in the
magnetic field force (flux), created by the
movement of the trigger wheel relative to the
magnet, induces a voltage in the trigger coil.
This voltage is passed to the ignition amplifier
module which switches off the ignition coil
primary circuit. This results in the collapse of
the magnetic field in the coil which
generates the high tension voltage. The high
tension voltage is then fed, via the coil HT
lead and the carbon brush in the centre of the
distributor cap, to the rotor arm. The voltage
passes across to the appropriate metal
segment in the cap and via the spark plug HT
lead to the spark plug where it finally jumps
the spark plug gap to earth. The distributor is driven by an offset drive
dog locating to a correspondingly offset slot
in the end of the camshaft.
The ignition advance is a function of the
distributor and is controlled both mechanically
and by a vacuum operated system. The
mechanical governor mechanism consists of
two weights which move out from the
distributor shaft as the engine speed rises due
to centrifugal force. As they move outwards,
they rotate the trigger wheel relative to the
distributor shaft and so advance the spark.
The weights are held in position by two light
springs and it is the tension of the springs
which is largely responsible for correct spark
advancement. The vacuum control consists of a
diaphragm, one side of which is connected
via a small bore hose to the carburettor or
throttle housing, and the other side to the
distributor. Depression in the inlet manifold
and/or carburettor, which varies with engine
speed and throttle position, causes the
diaphragm to move, so moving the stator and
advancing or retarding the spark. A fine
degree of control is achieved by a spring in
the diaphragm assembly. Additionally, one or more vacuum valve
may be incorporated in the vacuum line
between the inlet manifold or carburettor and
the distributor. The function of these is to
control the vacuum felt at the distributor and
to prevent fuel entering along the vacuum line
(as applicable).
Distributor ignition systems (pre-
September 1990 CVH engines with
CFi fuel injection)
The ignition system is divided into two
circuits; low tension (primary) and high
tension (secondary). The low tension circuit
consists of the battery, ignition switch, ignition
module, ballast resistor, coil primary windings
and “Hall effect” distributor. The high tension
circuit consists of the coil secondary
windings, coil-to-distributor cap HT lead,
distributor cap, rotor arm, spark plug HT leads
and spark plugs. The system is under the
overall control of the EEC IV engine
management module which also controls the
fuel injection and emission control equipment. When the system is in operation the
distributor supplies the EEC IV module with a
crankshaft position reference signal to enable
an initial ignition timing setting to be
established. This signal is generated by
means of a trigger vane attached to the
distributor shaft and which rotates in the gap
between a permanent magnet and a sensor.
The trigger vane has four cut-outs, one for
each cylinder. When one of the trigger vane
cut-outs is in line with the sensor, magnetic
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flux can pass between the magnet and the
sensor. When a trigger vane segment is in line
with the sensor, the magnetic flux is diverted
through the trigger vane, away from the
sensor. The sensor detects the change in
magnetic flux and sends an impulse to the
EEC IV module. Additional data is received
from the engine coolant temperature sensor,
manifold absolute pressure sensor, inlet air
temperature sensor, throttle position sensor
and vehicle speed sensor. Using this
information the EEC IV module calculates the
optimum ignition advance setting and
switches off the low tension circuit via the
ignition module. This results in the collapse of
the magnetic field in the coil which generates
the high tension voltage. The high tension
voltage is then fed, via the coil HT lead and
the carbon brush in the centre of the
distributor cap, to the rotor arm. The voltage
passes across to the appropriate metal
segment in the cap and via the spark plug HT
lead to the spark plug where it finally jumps
the spark plug gap to earth. It can be seen
that the ignition module functions basically as
a high current switch by controlling the low
tension supply to the ignition coil primary
windings.In the event of failure of a sensor, the
EEC IV module will substitute a preset value
for that input to allow the system to continue
to function. In the event of failure of the
EEC IV module, a “limited operation strategy”
(LOS) function allows the vehicle to be driven,
albeit at reduced power and efficiency. The
EEC IV module also has a “keep alive
memory” (KAM) function which stores idle and
drive values and codes which can be used to
indicate any system fault which may occur.
Distributorless ignition systems
The main ignition system components
include the ignition switch, the battery, the
crankshaft speed/position sensor, the ignition
module, the coil, the primary (low tension/LT)
and secondary (high tension/HT) wiring
circuits, and the spark plugs. The system used on carburettor models is
termed DIS (Distributorless Ignition System),
and on fuel injection models E-DIS, (Electronic
Distributorless Ignition System). The primary
difference between the two is that the DIS
system is an independent ignition control
system while the E-DIS system operates in
conjunction with the EEC IV engine
management module which also controls the
fuel injection and emission control systems.
With both systems, the main functions of
the distributor are replaced by a computerised
ignition module and a coil unit. The coil unit
combines a double-ended pair of coils - each
time a coil receives an ignition signal, two
sparks are produced, at each end of the
secondary windings. One spark goes to a
cylinder on compression stroke and the other
goes to the corresponding cylinder on its
exhaust stroke. The first will give the correct power stroke, but the second spark will have
no effect (a “wasted spark”), occurring as it
does during exhaust conditions.
The ignition signal is generated by a
crankshaft position sensor which scans a
series of 36 protrusions on the periphery of
the engine flywheel. The inductive head of the
crankshaft position sensor runs just above the
flywheel periphery and as the crankshaft
rotates, the sensor transmits a pulse to the
ignition module every time a protrusion
passes it. There is one missing protrusion in
the flywheel periphery at a point
corresponding to 90° BTDC. The ignition
module recognises the absence of a pulse
from the crankshaft position sensor at this
point to establish a reference mark for
crankshaft position. Similarly, the time interval
between absent pulses is used to determine
engine speed. On carburettor engines, the ignition module
receives signals provided by information
sensors which monitor various engine
functions (such as crankshaft position,
coolant temperature, inlet air temperature,
inlet manifold vacuum etc). This information
allows the ignition module to generate the
optimum ignition timing setting under all
operating conditions.
On fuel injection engines, the ignition
module operates in conjunction with the
EEC IV engine management module, and
together with the various additional
information sensors and emission control
components, provides total control of the fuel
and ignition systems to form a complete
engine management package. The information contained in this Chapter
concentrates on the ignition-related
components of the engine management
system. Information covering the fuel, exhaust
and emission control components can be
found in the applicable Parts of Chapter 4.
Precautions
When working on the ignition system, take
the following precautions:
a) Do not keep the ignition switch on for
more than 10 seconds if the engine will
not start.
b) If a separate tachometer is ever required
for servicing work, consult a dealer
service department before buying a
tachometer for use with this vehicle -
some tachometers may be incompatible
with these types of ignition systems - and
always connect it in accordance with the
equipment manufacturer’s instructions.
c) Never connect the ignition coil terminals to earth. This could result in damage to
the coil and/or the ignition module.
d) Do not disconnect the battery when the
engine is running.
e) Make sure that the ignition module is
properly earthed.
f) Refer to the warning at the beginning of the next Section concerning HT voltage.
2 Ignition system - testing
2
Warning: Voltages produced by
an electronic ignition system are
considerably higher than those
produced by conventional
ignition systems. Extreme care must be
taken when working on the system with
the ignition switched on. Persons with
surgically-implanted cardiac pacemaker
devices should keep well clear of the
ignition circuits, components and test
equipment.
Note: Refer to the precautions given in
Section 1 of Part A of this Chapter before
starting work. Always switch off the ignition
before disconnecting or connecting any
component and when using a multi-meter to
check resistances.
1 If the engine turns over but won’t start,
disconnect the (HT) lead from any spark plug,
and attach it to a calibrated tester (available at
most automotive accessory shops). Connect
the clip on the tester to a good earth - a bolt
or metal bracket on the engine. If you’re
unable to obtain a calibrated ignition tester,
have the check carried out by a Ford dealer
service department or similar. Any other form
of testing (such as jumping a spark from the
end of an HT lead to earth) is not
recommended, because of the risk of
personal injury, or of damage to the ignition
module.
2 Crank the engine, and watch the end of the
tester to see if bright blue, well-defined sparks
occur.
3 If sparks occur, sufficient voltage is
reaching the plug to fire it. Repeat the
check at the remaining plugs, to ensure
that all leads are sound and that the
coil is serviceable. However, the plugs
themselves may be fouled or faulty, so
remove and check them as described in
Chapter 1.
4 If no sparks or intermittent sparks occur,
the spark plug lead(s) may be defective. Also,
on distributor systems, there may be
problems with the rotor arm or distributor cap
- check all these components as described in
Chapter 1.
5 If there’s still no spark, check the coil’s
electrical connector (where applicable), to
make sure it’s clean and tight. Check for full
battery voltage to the coil at the connector’s
centre terminal. Check the coil itself (see
Section 3). Make any necessary repairs, then
repeat the check again.
6 The remainder of the system checks should
be left to a dealer service department
or other qualified repair facility, as there is a
chance that the ignition module may
be damaged if tests are not performed
properly.
Ignition system 5B•3
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4 Ignition amplifier module(distributor ignition systems)
- removal and refitting
2
Note: The ignition amplifier module is only
fitted to carburettor engine models.
Removal
1 Disconnect the battery negative (earth) lead
(refer to Part A, Section 1).
2 Remove the distributor, as described in
Section 8.
3 With the distributor on the workbench,
remove both screws securing the module to
the distributor body, then slide the module
from its trigger coil connector and remove it.
4 Check that the rubber grommet is
serviceable. If it is not, it must be renewed but
ensure that the correct type is obtained.
Refitting
5 Apply heat sink compound (see
Specifications ) to the module metal face,
ensuring a good earth. This is an essential
part of the procedure, protecting the module
electronic circuitry from excessive heat build-
up and subsequent malfunction.
6 Slide the module into its trigger coil
connector and secure with both screws.
7 Refit the distributor in accordance with
Section 8, then reconnect the battery.
5 Ignition module -
removal and refitting
1
Note: Various designs of ignition module may
be fitted depending on ignition system type.
Although the units may differ in appearance
from the those shown in the accompanying
illustrations, the procedures described below
are applicable to all types.
Removal
1 The ignition module is located on the
engine compartment bulkhead.
2 Disconnect the battery negative (earth) lead
(refer to Part A, Section 1).
3 Where applicable, detach the vacuum hose
from the module (see illustration).
4 According to type, either compress the
locktab securing the wiring multi-plug in
position, or where applicable, undo the
retaining bolt, then withdraw the plug from the
module (see illustrations) .
5 Undo the retaining screws, and remove
the module from the bulkhead (see
illustration) .
Refitting
6Refitting is the reverse of the removal
procedure.
6 Crankshaft position sensor -
removal and refitting
2
Removal
1 Disconnect the battery negative (earth) lead
(refer to Part A, Section 1).
2 Chock the rear wheels then jack up the
front of the car and support it on axle stands
(see “Jacking and vehicle support” ).
3 If working on the Zetec engine, remove the
starter motor as described in Part A of this
Chapter.
4 Compress the retaining clip and pull free
the wiring multi-plug connector from the
sensor unit, but take care to pull on the
connector, not the lead (see illustration).
5 Undo the Torx-type retaining screw, and
withdraw the sensor from its location in the
cylinder block bellhousing flange.
Refitting
6 Refitting is the reversal of removal.
7 Distributor cap and rotor
arm - removal and refitting
1
Removal
1Disconnect the battery negative (earth) lead
(refer to Part A, Section 1).
2 Disconnect the coil HT lead from the centre
of the distributor cap and the spark plug HT
leads from the spark plugs, having identified
them for subsequent refitting. Pull on the
connectors, not the leads. Release the leads
from any cable clips or ties.
3 On carburettor models, unclip the
suppressor shield (where fitted), remove the
distributor cap securing screws and detach
the cap.
4 On CFi fuel injection models, disconnect
the distributor multi-plug for better access to
the rear cap securing clip. Release the
distributor cap securing clips by levering with
a screwdriver, withdraw the cap assembly
Ignition system 5B•5
5.4b Undoing the ignition module multi- plug securing bolt5.4a Disconnecting the ignition module multi-plug5.3 Disconnecting the vacuum pipe fromthe ignition module
6.4 Crankshaft position sensor removal
A Retaining screw B Multi-plug5.5 Ignition module location on bulkheadpanel. Note retaining screws (arrowed)
5B
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1 General information
The bodyshell and underframe on all
models is of all-steel welded construction,
incorporating progressive crumple zones at
the front and rear, and a rigid centre safety
cell. The body styles available include three-
door, five-door, Van and Courier
configurations. A multi-stage anti-corrosion process is
applied to all new vehicles. This includes zinc
phosphating on some panels, the injection of
wax into boxed sections, and a wax and PVC
coating applied to the underbody for its
protection. Inertia reel seat belts are fitted to all
models, and from the 1994 model year
onwards, the front seat belt stalks are
mounted on automatic mechanical tensioners
(also known as “grabbers”). In the event of a
serious front impact, a spring mass sensor
releases a coil spring which pulls the stalk
buckle downwards and tensions the seat belt.
It is not possible to reset the tensioner once
fired, and it must therefore be renewed. Central locking is a standard or optional
fitment on all models. Where double-locking is
also fitted, the lock mechanism is
disconnected (when the system is in use) from
the interior door handles, making it impossible
to open any of the doors or the tailgate from
inside the vehicle. This means that, even if a
thief should break a side window, it will not be
possible to open the door using the interior
handle.
2 Maintenance -
bodywork and underframe
1
The general condition of a vehicle’s
bodywork is the one thing that significantly
affects its value. Maintenance is easy, but
needs to be regular. Neglect, particularly after
minor damage, can lead quickly to further
deterioration and costly repair bills. It is
important also to keep watch on those parts
of the vehicle not immediately visible, for
instance the underside, inside all the wheel
arches, and the lower part of the engine
compartment. The basic maintenance routine for the
bodywork is washing - preferably with a lot of
water, from a hose. This will remove all the
loose solids which may have stuck to the
vehicle. It is important to flush these off in
such a way as to prevent grit from scratching
the finish. The wheel arches and underframe
need washing in the same way, to remove any
accumulated mud, which will retain moisture
and tend to encourage rust. Oddly enough,
the best time to clean the underframe and
wheel arches is in wet weather, when the mud
is thoroughly wet and soft. In very wet weather, the underframe is usually cleaned of
large accumulations automatically, and this is
a good time for inspection.
Periodically, except on vehicles with a wax-
based underbody protective coating, it is a
good idea to have the whole of the
underframe of the vehicle steam-cleaned,
engine compartment included, so that a
thorough inspection can be carried out to see
what minor repairs and renovations are
necessary. Steam-cleaning is available at
many garages, and is necessary for the
removal of the accumulation of oily grime,
which sometimes is allowed to become thick
in certain areas. If steam-cleaning facilities are
not available, there are some excellent grease
solvents available which can be brush-
applied; the dirt can then be simply hosed off.
Note that these methods should not be used
on vehicles with wax-based underbody
protective coating, or the coating will be
removed. Such vehicles should be inspected
annually, preferably just prior to Winter, when
the underbody should be washed down, and
any damage to the wax coating repaired.
Ideally, a completely fresh coat should be
applied. It would also be worth considering
the use of such wax-based protection for
injection into door panels, sills, box sections,
etc, as an additional safeguard against rust
damage, where such protection is not
provided by the vehicle manufacturer. After washing paintwork, wipe off with a
chamois leather to give an unspotted clear
finish. A coat of clear protective wax polish
will give added protection against chemical
pollutants in the air. If the paintwork sheen
has dulled or oxidised, use a cleaner/polisher
combination to restore the brilliance of the
shine. This requires a little effort, but such
dulling is usually caused because regular
washing has been neglected. Care needs to
be taken with metallic paintwork, as special
non-abrasive cleaner/polisher is required to
avoid damage to the finish. Always check that
the door and ventilator opening drain holes
and pipes are completely clear, so that water
can be drained out .Brightwork should be
treated in the same way as paintwork.
Windscreens and windows can be kept clear
of the smeary film which often appears, by the
use of proprietary glass cleaner. Never use
any form of wax or other body or chromium
polish on glass.
3 Maintenance -
upholstery and carpets
1
Mats and carpets should be brushed or
vacuum-cleaned regularly, to keep them free
of grit. If they are badly stained, remove them
from the vehicle for scrubbing or sponging,
and make quite sure they are dry before
refitting. Seats and interior trim panels can be
kept clean by wiping with a damp cloth. If they
do become stained (which can be more apparent on light-coloured upholstery), use a
little liquid detergent and a soft nail brush to
scour the grime out of the grain of the
material. Do not forget to keep the headlining
clean in the same way as the upholstery.
When using liquid cleaners inside the vehicle,
do not over-wet the surfaces being cleaned.
Excessive damp could get into the seams and
padded interior, causing stains, offensive
odours or even rot.
Note
:
If the inside of the vehicle gets wet
accidentally, it is worthwhile taking some
trouble to dry it out properly, particularly
where carpets are involved .
Warning: Do not leave oil or
electric heaters inside the
vehicle for this purpose.
4 Minor body damage-
repair
3
Repairs of minor scratches in
bodywork
If the scratch is very superficial, and does
not penetrate to the metal of the bodywork,
repair is very simple. Lightly rub the area of
the scratch with a paintwork renovator, or a
very fine cutting paste, to remove loose paint
from the scratch, and to clear the surrounding
bodywork of wax polish. Rinse the area with
clean water. Apply touch-up paint to the scratch using a
fine paint brush; continue to apply fine layers
of paint until the surface of the paint in the
scratch is level with the surrounding
paintwork. Allow the new paint at least two
weeks to harden, then blend it into the
surrounding paintwork by rubbing the scratch
area with a paintwork renovator or a very fine
cutting paste. Finally, apply wax polish. Where the scratch has penetrated right
through to the metal of the bodywork, causing
the metal to rust, a different repair technique
is required. Remove any loose rust from the
bottom of the scratch with a penknife, then
apply rust-inhibiting paint to prevent the
formation of rust in the future. Using a rubber
or nylon applicator, fill the scratch with
bodystopper paste. If required, this paste can
be mixed with cellulose thinners to provide a
very thin paste which is ideal for filling narrow
scratches. Before the stopper-paste in the
scratch hardens, wrap a piece of smooth
cotton rag around the top of a finger. Dip the
finger in cellulose thinners, and quickly sweep
it across the surface of the stopper-paste in
the scratch; this will ensure that the surface
of the stopper-paste is slightly hollowed. The
scratch can now be painted over as described
earlier in this Section.
Repairs of dents in bodywork
When deep denting of the vehicle’s
bodywork has taken place, the first task is to
pull the dent out, until the affected bodywork
11•2 Bodywork and fittings
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12
1595Ford Fiesta Remake
Fuses - pre-1992 models
Main fuse board:
No Rating (amps) Circuit(s) protected
1 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . Electronic engine control system
2 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . Interior light, cigarette lighter, clock and radio memory
3 20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . Central locking system
4 30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . Heated rear window element
5 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . Dim-dip lighting
6 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . Left-hand side lights and rear fog light
7 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . Right-hand side lights
8 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . Left-hand dipped beam
9 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . Right-hand dipped beam
10 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . Left-hand main beam and right-hand auxiliary driving light
11 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . Right-hand main beam and left-hand auxiliary driving light
12 20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . Heater fan motor and reversing light
13 30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . Radiator cooling fan motor
14 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . Front foglights (XR2i only)
15 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . Horn
16 20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . Wiper motor and windscreen/tailgate washer pump
17 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . Brake stop lights, instrument illumination and instrument warning
18 30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . Electrically operated windows
19 20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . Electric fuel pump
20 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . Oxygen sensor (vehicles with catalytic converter)
21 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . Left-hand direction indicators
22 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . Right-hand direction indicators
Chapter 12
Body electrical systems
Air bag (driver’s side) - removal and refitting . . . . . . . . . . . . . . . . . . 28
Air bag (passenger’s side) - removal and refitting . . . . . . . . \
. . . . . . . 29
Air bag clock spring - removal and refitting . . . . . . . . . . . . . . . . . . . 31
Air bag control module - removal and refitting . . . . . . . . . . . . . . . . . 30
Anti-theft systems - general information . . . . . . . . . . . . . . . . . . . . . . 27
Battery, bulbs and fuses . . . . . . . . . . . . . . . . . . . .See
“Weekly checks”
Bulbs (exterior lights) - renewal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Bulbs (interior lights) - renewal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Cigarette lighter - removal and refitting . . . . . . . . . . . . . . . . . . . . . . 12
Clock - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Electric window regulator motor - removal and refitting . . . . . . . . . . 20
Electrical fault-finding - general information . . . . . . . . . . . . . . . . . . . 2
Exterior light units - removal and refitting . . . . . . . . . . . . . . . . . . . . . 7
Fuses and relays - general information . . . . . . . . . . . . . . . . . . . . . . . 3
General information and precautions . . . . . . . . . . . . . . . . . . . . . . . . 1
Headlight and auxiliary light beam alignment - checking and
adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . 8
Horn - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Instrument panel - removal and refitting . . . . . . . . . . . . . . . . . . . . . . 9
Instrument panel components - removal and refitting . . . . . . . . . . . 10
“Lights-on” warning module - removal and refitting . . . . . . . . . . . . . 26
Radio aerial - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Radio/cassette player - removal and refitting . . . . . . . . . . . . . . . . . . 22
Screen washer fluid level check . . . . . . . . . . . . . .See
“Weekly checks”
Speaker balance control joystick - removal and refitting . . . . . . . . . 24
Speakers - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Speedometer cable - removal and refitting . . . . . . . . . . . . . . . . . . . . 11
Switches - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Tailgate remote release motor - removal and refitting . . . . . . . . . . . 21
Tailgate wiper motor assembly - removal and refitting . . . . . . . . . . . 18
Windscreen wiper motor and linkage - removal and refitting . . . . . . 16
Windscreen wiper pivot shaft - removal and refitting . . . . . . . . . . . . 17
Windscreen/tailgate washer system components - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . 19
Wiper arms - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Wiper blade check . . . . . . . . . . . . . . . . . . . . . . . .See “Weekly checks”
12•1
Specifications Contents
Easy,suitable for
novice with little
experience Fairly easy,
suitable
for beginner with
some experience Fairly difficult,
suitable for competent
DIY mechanic
Difficult,
suitable for
experienced DIY
mechanic Very difficult,
suitable for expert DIY
or professional
Degrees of difficulty
54321
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BulbsWattage
Headlight (halogen) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . H4, 60/55
Sidelight (front) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . 5
Direction indicators (main) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Side direction indicator repeaters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Auxiliary driving and foglights (S and XR2i) . . . . . . . . . . . . . . . . . . . . . . H3, 55
Stop/tail light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . 21/5
Rear foglight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . 21
Reversing light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . 21
Number plate light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . 10
Interior light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . 10
Luggage compartment light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Instrument warning lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
1.3 or 2.6
Panel illumination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . 1.3 or 2.6
Cigarette lighter illumination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4
Automatic transmission selector illumination . . . . . . . . . . . . . . . . . . . . . 2
Lubricants
Grease for windscreen wiper linkage and pivots . . . . . . . . . . . . . . . . . . To Ford specification SAM-1C-911-A
Torque wrench settingsNm lbf ft
Wiper motor to bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . 8 to 9 6 to 7
Wiper motor bracket to bulkhead/tailgate . . . . . . . . . . . . . . . . . . . . . . . 6 to 8 4 to 6
Windscreen wiper crank to driving shaft nut . . . . . . . . . . . . . . . . . . . . . 22 to 24 16 to 18
Windscreen/tailgate wiper arm retaining nut . . . . . . . . . . . . . . . . . . . . . 17 to 18 12 to 13
Windscreen wiper pivot shaft nut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 to 12 7 to 9
Windscreen/tailgate washer reservoir securing bolts . . . . . . . . . . . . . . . 2.5 to 3.5 2 to 3
Headlight retaining bolt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. 5.4 to 7.0 4 to 5
Tail light securing nuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . 1.5 to 2.5 1 to 2
Auxiliary light retaining nut (S models) . . . . . . . . . . . . . . . . . . . . . . . . . . 6.8 to 9.2 5 to 7
Horn bracket retaining bolt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 to 33 18 to 24
Starter inhibitor switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . 9 to 14 7 to 10
Body electrical systems 12•3
12
1595Ford Fiesta Remake
1 General information and
precautions
General information
The electrical system is of 12-volt negative
earth type. Power for the lights and all
electrical accessories is supplied by a
lead/acid battery, which is charged by the
engine-driven alternator.
This Chapter covers repair and service
procedures for the various electrical
components not associated with the engine.
Information on the battery, ignition system,
alternator, and starter motor can be found in
Chapter 5A and B.
All models from 1994 onwards are fitted
with a driver’s air bag, which is designed to
prevent serious chest and head injuries to the
driver during an accident. A similar bag for the
front seat passenger is also available. The
combined sensor and electronics for the air
bag is located next to the steering column
inside the vehicle, and contains a back-up
capacitor, crash sensor, decelerometer,
safety sensor, integrated circuit and
microprocessor. The air bag is inflated by a
gas generator, which forces the bag out of the module cover in the centre of the steering
wheel. A “clock spring” ensures that a good
electrical connection is maintained with the air
bag at all times - as the steering wheel is
turned in each direction, the spring winds and
unwinds.
An anti-theft alarm system is available on
later models, and is triggered if the vehicle is
broken into through the doors, bonnet, or
tailgate. The alarm will also be triggered if the
ignition or audio equipment is tampered with.
Additionally, from the 1994 model year
onwards, a Passive Anti-Theft System (PATS)
is fitted. This system, (which works
independently of the standard alarm) prevents
the engine from being started unless a
specific code, programmed into the ignition
key, is recognised by the PATS transceiver.
Precautions
Warning: Before carrying out
any work on the electrical
system, read through the
precautions given in “Safety
first!” at the beginning of this manual and
in Chapter 5A, Section 1.
Caution: Prior to working on any
component in the electrical system, the
battery negative lead should first be
disconnected, to prevent the possibility of electrical short-circuits and/or fires. If a
radio/cassette player with anti-theft
security code is fitted, refer to the
information given in the reference sections
of this manual before disconnecting the
battery.
2 Electrical fault-finding
-
general information
2
Note: Refer to the precautions given in
“Safety first!” and in Section 1 of this Chapter
before starting work. The following tests relate
to testing of the main electrical circuits, and
should not be used to test delicate electronic
circuits (such as engine management
systems), particularly where an electronic
control unit is used. Also refer to the
precautions given in Chapter 5A, Section 1.
General
1 A typical electrical circuit consists of an
electrical component, any switches, relays,
motors, fuses, fusible links or circuit breakers
related to that component, and the wiring and
connectors which link the component to both
the battery and the chassis. To help to
pinpoint a problem in an electrical circuit,
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