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12
Chapter 12
Body electrical system
General
System type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-volt negative earth
Fuses (early models)
No Circuit protected Rating (amp)
1 Reverse light, cooling fan relay, tachometer (GTI) . . . . . . . . . . . . . 10
2 Accessories, indicators, fuel gauge, warning lights, heater blower
motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3 Ignition switch, wash/wipe system, stop-lights, tachometer (non-
GTI option), radio, heated rear window, electric window relay
(option), clock illumination (GTI). . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4 Central door locking (option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5 Cooling fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6 Hazard warning switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7 Spare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -
8 Cigarette lighter, clock, interior lights, glovebox illumination, radio . . 20
9 Electric front windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
10 Heated rear window, horns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
11 Rear foglight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
12 Side/tail lights/warning light, instrument panel illumination, number
plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
13 (In-line) fuel pump (GTI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Air compressor and horn (1.9 GTI models) - removal and refitting . . 21
Battery, bulbs and fuses . . . . . . . . . . . . . . . . . . . .See
“Weekly checks”
Bulbs (exterior lights) - renewal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Bulbs (interior lights) - renewal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Central door locking system - general information . . . . . . . . . . . . . . 19
Clock - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Dim-dip lighting system - general information . . . . . . . . . . . . . . . . . 13
Electrical fault finding - general information . . . . . . . . . . . . . . . . . . . 2
Front direction indicator light unit - removal and refitting . . . . . . . . . 11
Fuses and relays - general information . . . . . . . . . . . . . . . . . . . . . . . 3
General information and precautions . . . . . . . . . . . . . . . . . . . . . . . . 1
Headlight beam alignment - checking and adjusting . . . . . . . . . . . . 12
Headlight unit - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . 10
Horn - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Instrument panel - removal and refitting . . . . . . . . . . . . . . . . . . . . . . 5
Radio - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Speedometer cable - renewal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Screen washer fluid level check . . . . . . . . . . . . . .See “Weekly checks”
Switches - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Tailgate heated window - general information . . . . . . . . . . . . . . . . . 18
Tailgate wiper motor - removal and refitting . . . . . . . . . . . . . . . . . . . 16
Vehicle immobiliser - general information . . . . . . . . . . . . . . . . . . . . . 23
Washer system - general information . . . . . . . . . . . . . . . . . . . . . . . . 17
Windscreen wiper motor and linkage - removal and refitting . . . . . . 15
Wiper arms - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . . . 14
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