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LT 28 (1975-1991) LT 2D (1996-2003) Beetle (1960-1986) Caddy 3 (2003-2010)

Car wiring diagram (VW Lt 28)

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  • LT 28
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Contents: Main electrical circuit ↓ Key to the main electrical circuit ↓ Key to the auxiliary electrical…↓ Auxiliary wiring diagram for…↓

Main electrical circuit



Main electrical circuit
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Key to the main electrical circuit



PurposeDeviceOn the diagram
ABattery4
INStarter5, 6, 7, 8
WITHGenerator3
WITHVoltage regulator3
DIgnition/starter switch15, 16, 17
EWindshield wiper switch57, 58
E1Light switch19,20
E2Turn signal switch41
EZHazard warning switch38, 39, 40, 42
E4Low/high beam and flasher switch28
E9Fan switch52, 53
E15Rear window defroster switch48, 49
FBrake light switch34
F1Oil pressure switch64
F2Door contact switch2
F4Reversing light switch
GFuel level sensor66
G1Fuel level gauge59
G2Coolant temperature sensor65
G3Coolant temperature gauge60
NSound signal button70
H1Sound signal69
JRelay for low beam and headlight flashers28, 29, 30, 31
J2Alarm relay39, 41
J9Rear window defroster relay50, 51
J31Intermediate windshield wiper/washer relay socket55, 57
K1High beam indicator33
K2Generator indicator62
K3Oil pressure indicator61
K5Direction indicator63
K6Hazard warning light43
K8Fan indicator54
K10Rear window defroster indicator49
L1Dual filament bulb, left front headlight29, 31
L2Dual filament bulb, right front headlight30, 32
L10Instrument panel insert light18, 19, 20
M1Side light, left26
M2Rear light bulb, right25
M3Side light, right24
M4Rear light bulb, left27
M5Bulb, front turn signal, left45
M6Light bulb, rear turn signal, left44
M7Bulb, front turn signal, right47
M8Light bulb, rear turn signal, right46
M9Left brake light36
M10Right brake light35
M16Bulbs, reversing lights68
NIgnition coil10, 11
N1Automatic choke13
N3Air shut-off valve14
N6Series resistance (for ignition coil)8
ABOUTDistributor10, 11, 12, 13
RSpark plug connectors11, 12, 13
QSpark plugs11, 12, 13
S1 to S15Fuses in the fuse box
TAdapter behind the toolbar
T1Flat connector, single, next to the electric fuel pump
Terms of ReferenceConnector, three-point, behind the instrument panel
T10Connector, ten-point, on the toolbar insert
VWindshield wiper motor55, 56
V2Fan motor52, 53
V14Electric fuel pump72
WInterior lighting
ZRear window defroster


[In circles]
  • 1 - Ground wire, battery to body
  • 2 - Ground wire, generator to engine
  • 3 - Ground wire, gearbox to chassis
  • 4 - Grounding point, toolbar insert

Color coding


  • bl — blue,
  • br — brown
  • ge — yellow
  • gn — green
  • gr — gray
  • li — purple
  • ro — red
  • sw — black
  • ws — white

Key to the auxiliary electrical circuit



For color coding information, please refer to the main wiring diagram


PurposeDeviceOn the diagram
E1To the light switch, contact56, 11
E22Windshield wiper switch for intermediate operation5, 6, 7, 8, 9
J КRelay for low/high beam headlights and flasher, contact56, 12
J31Reserved for the intermediate wiper/washer relay3, 4
J39Headlight washer relay12, 13
S11Fuse in the fuse box2
T1Connector, single, next to the fuse box
T2Connector, double, near the headlight washer pump
VWindshield wiper motor1, 2, 3
V5Windshield washer pump10
V11Headlight washer pump13

[in circle] 10 - Grounding point, toolbar.

Auxiliary wiring diagram for headlight washers



Auxiliary wiring diagram for headlight washers
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This article is available at russian, bulgarian, belarusian, ukrainian, serbian, croatian, romanian, polish, slovak, hungarian
The text has been checked: Kolesnikov Artem

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Previous articles
Decoding electrical circuits
Troubleshooting — electrical system
Grounding points — location and functions
Rear Window Defogger — description and precautions
Windshield and headlight washer — maintenance
Windshield wiper motor and connecting components — removal and installation
Next articles
Electrical Equipment Specifications — models since 1983.
Switches — removal and installation
Taillights — bulb replacement (2.4l models)
Instrument cluster — removal and installation (models with 2.4l engine)
Oil pressure warning system — 1986 and later models
Radio Receiver — removal and installation (models with 2.4l engine)


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