Ford Body electrical systems User Manual
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
5
4
3
2
1
Additional fuses behind main fuse board:
No Rating (amps) Circuit(s) protected
23 - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unused
24/25 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rear fog lights
26 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tailgate remote release
27/28 30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Heated windscreen
Fuses - 1992 models onward
Main fuse board:
Fuses 1 to 22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unchanged from pre-1992 models
Additional fuses behind main fuse board:
No Rating (amps) Circuit(s) protected
23* - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unused
23** 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rear fog lights
24* - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unused
24** 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rear fog lights
25 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tailgate remote release, anti-theft warning system
26 30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Heated windscreen
27 30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Heated windscreen
28* 20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Full-length sunroof
28** 30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Automatic transmission starter inhibitor
29 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air bag
* Pre-1994 models
** 1994 models onward
Relays (pre-1992 models)
Note: Relay locations and circuits controlled are liable to change from year to year. Consult a Ford dealer, for specific information.
No Circuit(s) controlled
I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Heated rear window
II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Windscreen wiper delay
III . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CFi (fuel injection) delay relay
IV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Not used on UK models
V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ignition switch
VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Automatic transmission starter inhibitor/electric fuel pump (bridge
fitted to carburettor engines without automatic transmission)
VII . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Headlight main beam
VIII . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dim-dip lighting
IX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Not used on UK models
X . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Not used on UK models
XI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Heated windscreen
XII . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Anti-lock braking system
A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Idle speed control (automatic transmission) two-tone horn (where fitted)
B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Not used on UK models
C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Front foglights (XR2i)
D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Headlight dipped beam
E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dim-dip lighting
Relays (1992 models onward)
Note: Relay locations and circuits controlled are liable to change from year to year. Consult a Ford dealer, for specific information.
No Circuit(s) controlled
I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Heated rear window
II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Windscreen wiper delay
III . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CFi delay relay or EFi supply relay (fuel injection)
IV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Not used on UK models
V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ignition switch
VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Automatic transmission starter inhibitor, anti-theft warning system
VII . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Headlight main beam
VIII . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Anti-lock braking system and/or dim-dip lighting
IX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Not used on UK models
X . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Not used on UK models
XI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Heated windscreen
XII . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Anti-lock braking system
A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Idle speed control (automatic transmission) or two-tone horn (where fitted)
B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fuel pump
C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Front foglights (XR2i, RS Turbo and RS 1800)
D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Headlight dipped beam
E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dim-dip lighting
F . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Not used on UK models
12•2 Body electrical systems
1595Ford Fiesta Remake
Bulbs Wattage
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 settings Nm 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,
wiring diagrams are included at the end of this
manual.
2 Before attempting to diagnose an electrical
fault, first study the appropriate wiring
diagram, to obtain a complete understanding
of the components included in the particular
circuit concerned. The possible sources of a
fault can be narrowed down by noting if other
components related to the circuit are
operating properly. If several components or
circuits fail at one time, the problem is likely to
be related to a shared fuse or earth
connection.
3 Electrical problems usually stem from
simple causes, such as loose or corroded
connections, a faulty earth connection, a
blown fuse, a melted fusible link, or a faulty
relay (refer to Section 3 for details of testing
relays). Visually inspect the condition of all
fuses, wires and connections in a problem
circuit before testing the components. Use
the wiring diagrams to determine which
terminal connections will need to be checked
in order to pinpoint the trouble-spot.
4 The basic tools required for electrical faultfinding include a circuit tester or voltmeter (a
12-volt bulb with a set of test leads can also
be used for certain tests); an ohmmeter (to
measure resistance and check for continuity);
a battery and set of test leads; and a jumper
wire, preferably with a circuit breaker or fuse
incorporated, which can be used to bypass
suspect wires or electrical components.
Before attempting to locate a problem with
test instruments, use the wiring diagram to
determine where to make the connections.
Warning: Under no
circumstances may live
measuring instruments such as
ohmmeters, voltmeters or a bulb
and test leads be used to test any of the
air bag circuitry or components. Any
testing in these areas must be left to a
Ford dealer as there is a danger of
activating the system if the correct
procedures are not followed.
5 To find the source of an intermittent wiring
fault (usually due to a poor or dirty
connection, or damaged wiring insulation), a
“wiggle” test can be performed on the wiring.
This involves wiggling the wiring by hand to
see if the fault occurs as the wiring is moved.
It should be possible to narrow down the
source of the fault to a particular section of
wiring. This method of testing can be used in
conjunction with any of the tests described in
the following sub-Sections.
6 Apart from problems due to poor
connections, two basic types of fault can
occur in an electrical circuit - open-circuit, or
short-circuit.
7 Open-circuit faults are caused by a break
somewhere in the circuit, which prevents
current from flowing. An open-circuit fault will
prevent a component from working.
8 Short-circuit faults are caused by a “short”
somewhere in the circuit, which allows the
current flowing in the circuit to “escape” along
an alternative route, usually to earth. Shortcircuit faults are normally caused by a
breakdown in wiring insulation, which allows a
feed wire to touch either another wire, or an
earthed component such as the bodyshell. A
short-circuit fault will normally cause the
relevant circuit fuse to blow.
Finding an open-circuit
9 To check for an open-circuit, connect one
lead of a circuit tester or the negative lead of a
voltmeter either to the battery negative
terminal or to a known good earth.
10 Connect the other lead to a connector in
the circuit being tested, preferably nearest to
the battery or fuse. At this point, battery
voltage should be present, unless the lead
from the battery or the fuse itself is faulty
(bearing in mind that some circuits are live
only when the ignition switch is moved to a
particular position).
11 Switch on the circuit, then connect the
tester lead to the connector nearest the circuit
switch on the component side.
12 If voltage is present (indicated either by
the tester bulb lighting or a voltmeter reading,
as applicable), this means that the section of
the circuit between the relevant connector
and the switch is problem-free.
13 Continue to check the remainder of the
circuit in the same fashion.
14 When a point is reached at which no
voltage is present, the problem must lie
between that point and the previous test point
with voltage. Most problems can be traced to
a broken, corroded or loose connection.
Finding a short-circuit
15 To check for a short-circuit, first
disconnect the load(s) from the circuit (loads
are the components which draw current from
a circuit, such as bulbs, motors, heating
elements, etc).
16 Remove the relevant fuse from the circuit,
and connect a circuit tester or voltmeter to the
fuse connections.
17 Switch on the circuit, bearing in mind that
some circuits are live only when the ignition
switch is moved to a particular position.
18 If voltage is present (indicated either by
the tester bulb lighting or a voltmeter reading,
as applicable), this means that there is a
short-circuit.
19 If no voltage is present during this test,
but the fuse still blows with the load(s)
reconnected, this indicates an internal fault in
the load(s).
Finding an earth fault
20 The battery negative terminal is
connected to “earth” - the metal of the
engine/transmission and the vehicle body and many systems are wired so that they only
receive a positive feed, the current returning
via the metal of the car body. This means that
the component mounting and the body form
part of that circuit. Loose or corroded
mountings can therefore cause a range of
electrical faults, ranging from total failure of a
circuit, to a puzzling partial failure. In
particular, lights may shine dimly (especially
when another circuit sharing the same earth
point is in operation), motors (eg wiper
motors or the radiator cooling fan motor) may
run slowly, and the operation of one circuit
may have an apparently-unrelated effect on
another. Note that on many vehicles, earth
straps are used between certain
components, such as the engine/
transmission and the body, usually where
there is no metal-to-metal contact between
components, due to flexible rubber
mountings, etc.
21 To check whether a component is
properly earthed, disconnect the battery (refer
to Chapter 5A, Section 1) and connect one
lead of an ohmmeter to a known good earth
point. Connect the other lead to the wire or
earth connection being tested. The resistance
reading should be zero; if not, check the
connection as follows.
22 If an earth connection is thought to be
faulty, dismantle the connection, and clean
both the bodyshell and the wire terminal (or
the component earth connection mating
surface) back to bare metal. Be careful to
remove all traces of dirt and corrosion, then
use a knife to trim away any paint, so that a
clean metal-to-metal joint is made. On
reassembly, tighten the joint fasteners
securely; if a wire terminal is being refitted,
use serrated washers between the terminal
and the bodyshell, to ensure a clean and
secure connection. When the connection is
remade, prevent the onset of corrosion in the
future by applying a coat of petroleum jelly or
silicone-based grease, or by spraying on (at
regular intervals) a proprietary ignition sealer
or a water-dispersant lubricant.
3 Fuses and relays -
general information
Note: It is important to note that the ignition
switch and the appropriate electrical circuit
must always be switched off before any of the
fuses (or relays) are removed and renewed.
1 The main fuse and relay board is located
below the facia panel to the right of the
steering wheel. The fuses can be inspected
and if necessary renewed, by removing the
hinged access cover. The remaining
additional fuses and relays (depending on
model) may be accessed by removing the two
fuse board retaining screws, releasing the
retaining lugs on either side of the main fuse
plate and withdrawing the fuse/relay board
downwards into the driver’s footwell. Each
fuse location is numbered - refer to the fuse
chart in the Specifications at the start of this
Chapter to check which circuits are protected
by each fuse. Plastic tweezers are attached to
12•4 Body electrical systems
1595Ford Fiesta Remake
the inside face of the cover to remove and fit
the fuses (see illustrations).
2 To remove a fuse, use the tweezers
provided to pull it out of the holder. Slide the
fuse sideways from the tweezers. The wire
within the fuse is clearly visible, and it will be
broken if the fuse is blown.
3 Always renew a fuse with one of an
identical rating. Never renew a fuse more than
once without tracing the source of the trouble.
The fuse rating is stamped on top of the fuse.
4 With the exception of the indicator flasher
relay, the remainder of the relays are fitted to
the reverse side of the main fuse/relay board.
Access is as described in paragraph 1.
5 The various relays can be removed from
their respective locations on the fuse board by
carefully pulling them from the sockets.
6 The direction indicator flasher relay is
attached to the multi-function switch unit on
the steering column. Access to the relay is
made by undoing the retaining screws and
removing the steering column shrouds. The
relay can then be withdrawn from the switch.
7 If a system controlled by a relay becomes
inoperative and the relay is suspect, listen to
the relay as the circuit is operated. If the relay
is functioning, it should be possible to hear it
click as it is energised. If the relay proves
satisfactory, the fault lies with the
components or wiring of the system. If the
relay is not being energised, then it is not
receiving a main supply voltage or a switching
voltage, or the relay is faulty.
4 Switches -
removal and refitting
2
Ignition switch (loom plate and
lock barrel)
1 Disconnect the battery negative (earth) lead
(refer to Chapter 5A, Section 1).
2 Remove the manual choke control knob,
where fitted, by depressing the lug securing it,
and pulling it from its shaft. The lug is found
on the side of the control knob shank.
3 Remove the lower steering column shroud
by undoing its four retaining screws, then
detach the choke warning light switch/pull
control assembly from the lower shroud by
unscrewing its retaining collar (bayonet-type
fixing), using a suitable tool to locate in the
collar recesses.
4 Remove the two screws securing the upper
steering column shroud from above, and the
two screws securing it from below, the latter
accessible only with the lower shroud
removed.
5 Disconnect the ignition switch wiring multiplug connector. Insert a thin-bladed
screwdriver into the lock tab aperture, release
the locking tab and remove the loom plate
from its location on the left-hand side of the
steering column.
6 Where applicable, undo the single screw
and withdraw the Passive Anti-Theft System
(PATS) transceiver from the ignition
switch/steering lock barrel.
7 Insert the key and turn the ignition switch to
position ”I”. Depress the lock barrel plunger
through the steering column lock housing. As
the lock barrel plunger is depressed, pull
on the ignition key to remove the lock barrel
(see illustration).
8 Refitting is a reversal of the removal
procedure. When relocating the switch to the
steering lock, the barrel driveshaft must align
with the switch shaft as it is pushed into
position. Check the switch for satisfactory
operation on completion.
Steering column multi-function
switch
9 Carry out the operations described in
paragraphs 1 to 4 above.
10 Disconnect the wiring multi-plugs from
the multi-function switch assembly, then
remove the single screw securing the switch
assembly to the steering column lock
housing. This retaining screw is located
directly forward of the hazard warning light
switch. Remove the switch assembly.
11 Refitting is a reversal of the removal
procedure.
Facia centre panel switches
(below heater controls)
12 These switches individually control the
front and rear foglights, heated windscreen
and heated rear window element. Where
these features are not fitted to the vehicle,
blanking plates are installed instead of
switches.
13 Disconnect the battery negative (earth)
lead (refer to Chapter 5A, Section 1).
14 Remove the radio/cassette player as
described in Section 22.
15 Remove the ashtray, then undo the three
screws from the base of the centre panel.
Withdraw the centre panel, disconnecting the
cigarette lighter connections as it is
withdrawn.
16 Push the required switch/switches out
from behind, disconnect the multi-plug and
remove the switch.
17 Refitting is a reversal of the removal
procedure.
Centre console switches
18 The switches mounted on the centre
console control the electrically operated
Body electrical systems 12•5
3.1c Component layout on the fuse/relay
board. See Specifications for relay
identification
3.1b Withdrawing the fuse/relay board
downwards into the driver’s footwell
3.1a Method of fuse/relay board retention
A Retaining screws C Support
B Retaining lugs
4.7 Withdraw the lock barrel after
depressing its plunger through the
aperture in the steering column lock
housing (arrowed)
12
1595Ford Fiesta Remake
windows (early models) and the tailgate
remote release mechanism, where fitted.
19 Disconnect the battery negative (earth)
lead (refer to Chapter 5A, Section 1).
20 To remove a switch, carefully prise it from
its location using a thin flat-bladed
screwdriver, then disconnect the multi-plug
(see illustrations).
21 To refit, connect the multi-plug then push
home to secure.
Heater fan motor control switch
22 Disconnect the battery negative (earth)
lead (refer to Chapter 5A, Section 1).
23 Pull the heater fan motor control knob off,
then move the air distribution and
temperature controls fully to the right. Unclip
and remove the heater slide facia towards the
left-hand side of the vehicle, removing the
slide control knobs only as necessary, and
disconnecting its bulbholder (bayonet type) as
it is withdrawn (see illustration).
24 Squeeze the two release tabs together on
the heater fan motor control switch, and
remove it, disconnecting its multi-plug as it is
withdrawn.
25 Refit by reversing the removal procedure.
Brake stop-light switch
26 The brake stop-light switch is attached to
the brake pedal mounting bracket.
27 Detach the wiring multi-plug from the
switch, then twist the switch through a quarter
of a turn (90º) anticlockwise and withdraw it
from the bracket.
28 Insert the switch into its retainer, press it
lightly against the brake pedal until all free
play is just taken up, then turn the switch
clockwise to secure. Reconnect the switch
wiring connector and the battery.
Handbrake warning light
switch
29 Push the carpet mounding down as
necessary to gain access to the switch,
located on the handbrake lever.
30 Remove the cover, then disconnect the
warning light switch wiring multi-plug (see
illustration). Undo the two screws securing
the switch to the handbrake lever assembly
and remove the switch.
31 Refit by reversing the removal procedure.
Low brake fluid level warning
light switch
32 This is incorporated into the brake fluid
reservoir cap, and senses fluid level in the
reservoir. It cannot be renewed separately
from the cap.
33 To remove, disconnect the warning
indicator loom multi-plug and unscrew the
reservoir cap.
34 Refit by reversing the removal procedure.
Courtesy light switches
35 Disconnect the battery negative (earth)
lead (refer to Chapter 5A, Section 1).
36 With the door open, undo the retaining
screw and withdraw the switch from the door
pillar. Pull out the wiring slightly, and tie a
piece of string to it, so that it can be retrieved
if it drops down into the door pillar.
37 Disconnect the wiring from the switch.
38 Refitting is a reversal of removal.
Reversing light switch
39 Refer to Chapter 7A, Section 6.
Starter inhibitor switch
(automatic transmission)
40 Disconnect the battery negative (earth)
lead (refer to Chapter 5A, Section 1).
41 The starter inhibitor switch is located on
the transmission housing, and prevents the
engine from being started with the selector
lever in any position except “P” or “N”.
Access to the switch is gained after raising
and supporting the vehicle at the front end on
axle stands (see “Jacking and vehicle
support”).
42 Detach the switch multi-plug, then
unscrew and remove the switch from the
transmission, together with its O-ring. As the
switch is removed, catch any fluid spillage in a
suitable container, and plug the switch
aperture in the transmission to prevent any
further loss.
43 Refitting is a reversal of the removal
procedure. Use a new O-ring, and tighten the
switch securely. Ensure that the wiring
connection is securely made. On completion,
check and if necessary top-up the automatic
transmission fluid (see Chapter 1) then check
that the engine only starts when the selector
is in the “P” or “N” position.
Luggage area contact plate
44 Disconnect the battery negative (earth)
lead (refer to Chapter 5A, Section 1).
45 Open the tailgate and release the contact
plate side retaining clips using a thin-bladed
screwdriver. Push the contact plate from its
location in the body.
46 Disconnect the wiring multi-plug and
remove the plate (see illustration).
47 Refit in the reverse order of removal.
Luggage area contact switch
48 Disconnect the battery negative (earth)
lead (refer to Chapter 5A, Section 1).
49 Open the tailgate and remove its inner
trim panel (see Chapter 11).
12•6 Body electrical systems
4.46 Withdrawing the luggage area
contact plate for access to disconnect the
multi-plug
4.30 Removing the cover from the
handbrake warning light switch
4.23 Heater fan motor control switch
removal
4.20b . . . then disconnect its multiplug
and remove the switch
4.20a Prise the centre console switch up
from its location . . .
1595Ford Fiesta Remake
50 Undo the two screws securing the contact
switch and withdraw it from its tailgate
location.
51 Unclip and disconnect the switch multiplug, and disconnect the earth wiring.
Remove the switch.
52 Refit in the reverse order of removal.
Make sure that the pins and their contacts are
clean. On completion, check the operation of
the rear wipers, courtesy light, heated rear
window and the tailgate release/central
locking system.
Electric window switches
(1992 models onward)
53 On later models the electric window
switches are located in the upper surfaces of
the door stowage pockets. Removal and
refitting is the same as for the earlier centre
console mounted switches described
previously in this Section.
5 Bulbs (exterior lights) -
renewal
1
Note: Ensure that all exterior lights are
switched off before disconnecting the wiring
connectors to any exterior light bulbs. Note
that if a bulb fails, and has just been in use, it
will still be extremely hot, particularly in the
case of a headlight bulb.
Headlight
1 From within the engine compartment,
disconnect the multi-plug from the back of the
headlight.
2 Remove the rubber bulb protective cap,
then unlock the bulb retaining spring clip or
retaining ring (according to type) and
withdraw the bulb (see illustrations).
Caution: Take care not to touch the bulb
glass with your fingers - if accidentally
touched, clean the bulb with methylated
spirit.
3 Refitting is a reversal of the removal
procedure.
Front sidelight
4 The bulbholder is located on the side of the
headlight unit, and is removed by twisting
anti-clockwise and withdrawing from within
the engine compartment.
5 Withdraw the push-fit bulb from its holder.
6 Refitting is a reversal of the removal
procedure.
Front direction indicator
7 Remove the direction indicator light unit by
releasing the retaining spring from its body
location, then pulling the light assembly
forwards. Disconnect its multi-plug as it is
withdrawn.
8 Turn the bulbholder anti-clockwise and
remove it (see illustration). The bulb is a
bayonet type fitting in its holder.
9 Refitting is a reversal of the removal
procedure.
Front direction indicator side
repeater
10 Remove the appropriate front wheel arch
liner as described in Chapter 11.
11 Remove the appropriate sill scuff plate as
described in Chapter 11, and release the clip
securing the insulation to the panel forward of
the lower A-pillar.
12 Disconnect the supply lead connector and
the earth lead, then release their grommet
from its panel location.
13 From outside the vehicle, twist the light
assembly to release it, then withdraw it and its
leads (see illustration).
14 Refitting is a reversal of the removal
procedure, ensuring that the grommet is
seated correctly in its panel location.
Auxiliary lights
S models
15 Undo the screw at the base of the light,
then withdraw the lens and reflector assembly
from the light housing.
16 Disconnect the wiring then release the
bulb retainer and remove the bulb.
17 Refitting is a reversal of the removal
procedure.
XR2i models
18 Remove the auxiliary light assembly from
its bumper location, as described in Section 7.
19 Release the bulb retainer, then remove the
bulb (see illustration).
20 Refitting is a reversal of the removal
procedure.
Rear light cluster (all models
except Courier)
21 Access to the rear light cluster bulbholder
is gained from the luggage compartment.
Disconnect the multi-plug from the
bulbholder, then press the retaining lugs on
Body electrical systems 12•7
5.2b . . . then unlock the headlight bulb
retaining spring and withdraw the bulb
5.2a Remove the protective cap . . .
5.19 Releasing the auxiliary light bulb
retainer (XR2i models)
5.13 Removing the direction indicator side
repeater bulbholder assembly
5.8 Remove the front direction indicator
light bulbholder by turning it anti-
clockwise
A Light unit C Multi-plug
B Bulbholder D Retaining spring
12
1595Ford Fiesta Remake
the bulbholder together and remove it (see
illustrations).
22 All bulbs are of bayonet type fitting.
23 Refitting is a reversal of the removal
procedure.
Rear light cluster (Courier
models)
24 Working inside the load compartment,
unscrew the two black plastic nuts securing
the light cluster assembly. Withdraw the
assembly to the outside of the vehicle,
disconnecting the wiring from the bulbholder
(see illustrations).
25 All bulbs are of bayonet type fitting.
26 Refitting is a reversal of the removal
procedure.
Number plate lights
27 Insert a thin flat-bladed screwdriver
between the light assembly and the bumper,
and carefully prise the light out. Use a rag, or
a piece of card, between the screwdriver and
the bumper, to prevent damage to the
bumper.
28 Detach the connections on the underside
of the light assembly.
29 Release the tab securing the light cover to
the bulbholder, and remove the cover (see
illustration).
30 The bulb is a bayonet type fitting in its
holder.
31 Refitting is a reversal of the removal
procedure.
6 Bulbs (interior lights) -
renewal
2
Instrument panel illumination
and warning lights
1 Refer to Section 10.
Automatic transmission selector
illumination
2 Using a thin flat-bladed screwdriver, prise
up the selector cover and remove it.
3 Pull the bulb assembly to release it from the
selector lever, then remove its cover. The bulb
is a bayonet fit in its holder (see illustrations).
4 Refitting is a reversal of the removal
procedure.
Hazard warning switch
5 The hazard warning light switch, an integral
part of the steering column multi-function
switch assembly, has a bulb cover which pulls
off. The bulb is removed by pulling it from its
location.
6 Refitting is a reversal of the removal
procedure.
Clock illumination
7 Carefully prise the clock out of its facia
location, as described in Section 13.
8 Twist the bulbholder and withdraw it from
the rear of the clock (see illustration). Note
12•8 Body electrical systems
6.8 Withdrawing the clock illumination
bulb and its integral holder from the rear of
the clock
6.3b . . . followed by the (bayonet fitting)
bulb
6.3a Remove the selector illumination bulb
cover . . .
5.29 Release the number plate light
securing tab (arrowed) and separate the
bulbholder and light cover
5.24b . . . then withdraw the assembly to
the outside of the vehicle
5.24a On Courier models, unscrew the two
black plastic nuts securing the rear light
cluster assembly . . .
5.21b . . . then having pressed its retaining
lugs, withdraw the bulbholder for access
to the bulbs
5.21a Disconnect the ear light cluster
multi-plug from the bulbholder . . .
1595Ford Fiesta Remake
that the bulb and bulbholder cannot be
separated - they are replaced as an assembly.
9 Refitting is a reversal of the removal
procedure.
Cigarette lighter illumination
10 Remove the cigarette lighter, as described
in Section 12.
11 Pull the bulbholder from its location in the
illuminated surround, then pull the bulb out of
the bulbholder.
12 Refitting is a reversal of the removal
procedure.
Heater facia illumination
13 Pull the heater fan motor control knob off,
then move the air distribution and
temperature controls fully to the right. Unclip
and remove the heater slide facia towards the
left-hand side of the vehicle, removing the
slide control knobs only as necessary, and
disconnecting its bulbholder (bayonet type) as
it is withdrawn (see illustration).
14 The bulb is removed by pulling it from its
bulbholder.
15 Refitting is a reversal of the removal
procedure.
Interior (courtesy) light
16 Insert a thin flat-bladed screwdriver into
the slot in the light assembly, and carefully
lever it out of its aperture. The bulb is a
bayonet fit (see illustrations).
17 Refit the bulb by reversing the method of
removal, then insert the switch end of the light
to the aperture, pivot the light upwards and
push home to secure.
Luggage compartment
(courtesy) light
18 Carefully prise the luggage compartment
(courtesy) light assembly out of its location,
using a thin flat-bladed screwdriver. Twist the
bulbholder anti-clockwise to remove.
19 The bulb is removed by pulling it from its
bulbholder.
20 Refitting is a reversal of the removal
procedure.
7 Exterior light units -
removal and refitting
2
1 Disconnect the battery negative (earth) lead
(refer to Chapter 5A, Section 1), before
removing any of the light units.
Headlight
2 Disconnect the multi-plug from the back of
the headlights (see illustration).
3 Twist the sidelight bulb holder to release,
then withdraw it.
4 Remove the headlight securing bolt and
depress the headlight retaining spring, to
allow the headlight assembly to be hinged
forwards and out of its location (see
illustration).
5 Refitting is a reversal of the removal
procedure, ensuring that the lower headlight
mounting guide is inserted correctly, and that
the retaining spring engages fully (see
illustration).
6 On completion, check the headlight beam
alignment as described in Section 8.
Front direction indicator
7 To remove, release the indicator light
retaining spring from its body location, then
pull the light assembly forwards and
disconnect its multi-plug as it is withdrawn
(see illustrations).
Body electrical systems 12•9
6.16b Interior (courtesy) light pivoted for
access to the bulb
7.2 Disconnecting the multi-plug from the
back of the headlight
6.16a Releasing the interior (courtesy)
light from its location
6.13 Heater fan illumination arrangement
7.7a Release the front direction indicator
light retaining spring from its body
location . . .
7.5 Refitting the headlight. Mounting
guides (A) to fit to panel (B)
7.4 Headlight retaining bolt (A), and
retaining spring arrangement (B)
12
1595Ford Fiesta Remake
8 Refitting is a reversal of the removal
procedure.
Front direction indicator side
repeater
9 Remove the appropriate front wheel arch
liner as described in Chapter 11.
10 Remove the appropriate sill scuff plate as
described in Chapter 11, and release the clip
securing the insulation to the panel forward of
the lower A-pillar.
11 Disconnect the supply lead connector and
the earth lead, then release their grommet
from its panel location.
12 From outside the vehicle, twist the light
assembly to release it, then withdraw it and its
leads.
13 Refitting is a reversal of the removal
procedure, ensuring that the grommet is
seated correctly in its panel location.
Rear light cluster
14 Disconnect the multi-plug from the
bulbholder, then press the retaining lugs on
the bulbholder together and remove it (see
illustration).
15 Unscrew the four nuts securing the light
unit, then remove the unit and its seal.
16 Refitting is a reversal of the removal
procedure. Tighten the light unit securing nuts
to their specified torque.
Number plate light
17 Insert a thin flat-bladed screwdriver
between the light assembly and the bumper,
and carefully prise the light out. Use a rag, or
a piece of card, between the screwdriver and
the bumper, to prevent damage to the
bumper.
18 Detach the connections on the underside
of the light assembly.
19 Refitting is a reversal of the removal
procedure.
Auxiliary lights
S models
20 Disconnect the battery negative (earth)
lead (refer to Chapter 5A, Section 1).
21 Disconnect the light wiring multi-plug then
unscrew its retaining nut, withdraw the bolt
and remove the light unit (see illustration).
22 Refitting is a reversal of the removal
procedure, tightening the retaining nut to the
specified torque. On completion, check the
auxiliary light beam alignment as described in
Section 8.
XR2i models
23 Disconnect the battery negative (earth)
lead (refer to Chapter 5A, Section 1).
24 Undo the four Torx retaining screws
securing the relevant dual light assembly to its
bumper location. Note that the retaining and
adjusting screws are captive within the light
assembly - they cannot be removed from
the assembly (see illustration).
25 Withdraw the light assembly from its
location, then remove the caps protecting the
bulbs and disconnect the wiring.
26 If required, the lights may be removed
individually from their housing at this stage.
Each light is secured to its housing unit by a
combination of two types of clips - foglight
retention differs from driving light retention.
27 The adjusting/retaining clips are removed
by undoing the adjustment screws on the
front of the housing unit, then turning the clips
using pliers or similar tool, before
withdrawing. To remove a retaining-only clip,
lift the lug on the side of the clip using a
screwdriver, then turn the clip using pliers or
similar tool, before withdrawing.
28 Refitting is a reversal of the removal
procedure. On completion, check the auxiliary
light beam alignment as described in Section 8.
8 Headlight and auxiliary light
beam alignment - checking
and adjustment
2
1 Accurate adjustment of the headlight and
auxiliary light beams is only possible using
optical beam-setting equipment, and this
12•10 Body electrical systems
7.24 Auxiliary light assembly (XR2i models) - left-hand unit shown
A Light assembly retaining
screws
B Fog light vertical adjustment
screw
C Driving light vertical adjustment
screw
D Driving light horizontal
adjustment screw
E Bulb protective caps
F Fog light bulb connector
G Bulb earth leads
H Driving light bulb connector
7.21 Auxiliary light fixture (S models)
A Bracket retaining nuts C Auxiliary light multi-plug
B Auxiliary light retaining nut
7.14 Press the retaining lugs on the rear
light cluster bulbholder together (broken
arrows) to release the bulbholder
7.7b . . . then pull the light unit out to
enable the multi-plug (arrowed) to be
disconnected
1595Ford Fiesta Remake
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