Vehicle - Main Wiring: Overview
91vw06
Main wiring diagram
1991 Fox
Digifant I
(California only)
B
Number 91-36
Date March 22, 1991
Fuse arrangement according to the numbers on fuse panel from left to right:
Amp.
1 Open
2 Emergency flasher switch 15
3 Horn, brake lights 25
4 Clock, luggage compartment light,
interior light, radio memory 5
5 Rad. cool fan (with A/C) 30
6 Side marker light, parking light, taillight,
right 3
7 Side marker light, parking light, taillight,
left 3
8 High-beam headlight, right, hi-beam ind.
light 10
9 Hi-beam headlight, left 10
10 Low beam headlight, right 10
11 Low beam headlight, left 10
12 Back-up lights, turn signals, instrument
cluster warning/indicator lights 10
13 Transfer fuel pump, main fuel pump,
auxiliary air regulator, oxygen sensor
heater 15
14 License plate lights, ashtray light 3
15 Windshield wipers/washer 25
16 Rear window defogger 25
17 Fresh air blower 25
18 Cigarette lighter 15
19 Radiator cooling fan (with A/C) 25
20 Fresh air blower 30
21 Rad. cool. fan (with A/C) 30
22 Open
23 Digifant control unit relay, idle boost
control unit, idle speed boost valve, seat
belt warning light/buzzer 15
24 Inst. cluster lights, fresh air control lever
lights, cigarette lighter light, rear window
defogger switch and emergency flasher
switch light, radio light 3
25 Reading lamp 5
26 Open
27 Open
28 Open
Relay location on Fuse,Relay Panel
1 - Open
2 - Rad. cooling fan (A/C)
3 - Open
4 - Open
5 - Load reduction relay
6 - Open
7 - Horn relay
8 - Starting interlock relay
9 - Intermittent wiper relay
10 - Fuel pump relay
11 - Emergency flasher relay
12 - Seat belt warn. relay
13 - Open
14 - Idle boost control unit
15 - A/C relay
16 - Digifant control unit relay
17 - Open
Fuse/Relay panel, rear view
A - instrument cluster wiring harness (grey)
B - right front wiring harness (black)
C - instrument cluster wiring harness (blue)
D - left front wiring harness (green)
E - left front wiring harness (yellow)
F - instrument cluster wiring harness (brown)
G - instrument cluster wiring harness (red)
H - rear wiring harness (black)
I - instrument cluster wiring harness (red)
J - instrument cluster wiring harness (yellow)
K - upshift indicator (black) - not used
L - single connectors (terminal 30)
M - single connectors
N - single connector
0 - single connector
P - single connector
87a - single connector
75N - single connector
INDEX-DIGIFANT I
Description Current
Track
A/C compressor clutch 231
A/C control head 232-240
A/C high pressure switch (30 bar) 232
A/C microswitch 234
A/C refrigerant high pressure switch 251
A/C refrigerant low pressure switch 234
A/C relay 236-245
A/C thermostat 234
Air Flow sensor potentiometer 32-36
Alternator 2-4
Alternator warning light 175
Antenna 81
Ashtray light 96
Auxiliary air regulator 70
Back-up light, left 192
Back-up light, right 194
Back-up light switch 193
Battery 8
Brake fluid level switch 162
Brake fluid lvl/park brake warn. light 166
Brake fluid lvl/park brake warn. light
control 152
Brake light, left 185
Brake light, right 188
Brake light switch 185
Cigarette lighter 113-114
Clock light 164
Coolant overheat warning light 173
Coolant temperature gauge 171
Coolant temperature sensor 39, 177
Coolant temperature flasher 172
Diagnostic connectors 43, 44,
186, 187
Digifant control unit 21-55
Digifant control unit relay 19-20
Digital clock 162
Dome light 221-222
Door contact switch, LF 224-225
Door contact switch, RF 219
Emergency flasher relay 145-146
Emergency flasher switch 134-145
Emergency flasher warning light 145
Engine oil pressure control unit 157-160
Engine oil pressure switch (0.3 bar) 160
Engine oil pressure switch (1.8 bar) 159
Engine oil pressure waming light 161
Fresh air blower (with A/C) 239
Fresh air blower (w/o A/C) 87
Fresh air control lever lights 90, 91
Fresh air blower series resist
(with A/C) 240
Fresh air blower series resist
(w/o A/C) 83
Fresh air blower switch (with A/C) 237-240
Fresh air blower switch (w/o A/C) 83-87
Fuel gauge 170
Fuel gauge sending unit 67
Fuel pump 69
Fuel pump relay 24-26
Hall generator 21-23
Headlight dimmer/flasher switch 104-106
Headlight, left 209
Headlight, right 208
Headlight hi-beam ind. light 168
Headlight, hi-beam, left 210
Headlight, hi-beam, fight 207
Headlight switch 96-102
Headlight switch light 100
Hi-mount brake light (sedan) 102
Horns 178,180
Horn button 181
Description Current
Track
Horn relay 178-181
Idle boost control unit 16-18
Idle speed boost valve 18
Idle-speed boost valve (A/C) 235
Ignition coil 24-28
Ignition distributor 24-27
Ignition/start switch 62-65
lnjector, cyl. 1 54
Injector, cyl. 2 55
Injector, cyl. 3 52
Injector, cyl. 4 51
Instrument cluster lights 163
instrument panel light dimmer 93
Intake air temp sensor 32
Intermittent wiper/washer relay 125-128
License plate light 211, 213
Load reduction relay 99-101
Luggage compart. light 214
Luggage compartment light switch 214
Noise suppression capacitor 3
OBD fault warning light 167
Oxygen sensor 49
Oxygen sensor heater 48
Park brake warning light switch 163
Park light, LF 198
Park light, RF 202
Radiator cooling fan (with A/C) 248
Radiator cooling fan (w/o A/C) 73
Radiator cooling fan relay (A/C) 250-252
Radiator cool fan thermo. (with A/C) 247-249
Radiator cool fan thermo. (w/o A/C) 74
Radio 75-81
Reading lamp 217
Reading lamp switch 217
Rear window defogger 88
Rear window defogger switch 88-90
Seat belt switch, left 227
Seat belt warning light 154
Seat belt warning relay 225-228
Side marker light, LR 182
Side marker light, RR 191
Spark plugs 24-27
Spark plug connectors 24-27
Speaker, LF 75-76
Speaker, LR 77-78
Speaker, RF 77-78
Speaker, RR 75-76
Starter 10-12
Starting interlock relay 12-13
Tachometer 156
Taillight, left 184
Taillight, right 189
Thermo circuit breaker (w/o A/C) 85
Thermo circuit breaker (w A/C) 242
Throttle valve potentiometer 40-41
Transfer fuel pump 68
Turn signal indicator light 169
Turn signal light, LF 197
Turn signal light, LR 196
Turn signal light, RF 201
Turn signal light, RR 195
Turn signal switch 140-142
Voltage regulator 3
Voltage stabilizer 170
Windshield washer pump 129
Windshield wiper motor 119-123
Windshield wiper/washer switch 124-128
Wire connectors
T1 - single, (red) behind fuse/relay panel
T1a - single, (red) near left side of battery
T1b - single, (blue) behind fuse/relay panel
T1c - single, (white) near left side of heater/
A/C box
T1d - single, (white) near left side of heater/
A/C box
T1e - single, (white) near left side of heater/
A/C box
T1f - single, (black) behind fuse/relay panel
T1g - single, (black) in engine compartment,
near battery
T1h - single, (white) behind fuse/relay panel
T1j - single, (black) behind heater control
levers
T1k - single, (white) behind fuse/relay panel
T2 - double, (gray) behind fuse/relay panel
T2c - double, (blue) behind fuse/relay panel
T2d - double, (white) behind fuse/relay panel
T2e - double, (white) near left side of heater/
A/C box
T2f - double, (white) behind heater control
levers
T2g - double, (white) behind heater control
levers
T2h - double, (white) near fresh air blower
T2i - double, (black) lugg. compart., left
T2j - double, (black) lugg. compart., left
T2k - double, (white) near fresh air blower
T2l - double, (black), near fresh air blower
T2x - double, (black), diagnostic connector, in
console, below transmission shift lever cover
T2z - double, (white), diagnostic connector, in
console below transmission shift lever cover
T4 - four-point, (green) behind fuse/relay
panel
T4a - four-point, (gray) behind fuse/relay
panel
T4b - four-point, (brown) behind fuse/relay
panel
T4c - four-point, (red) behind fuse/relay panel
T4d - four-point, (black) near dome light
T4e - four-point, (black) in engine
compartment, right side
T4f - four-point, (gray), behind center
console, near floor
T5 - five-point, (black), in engine
compartment, on valve cover
T6 - six-point, (black) under inst. cluster
T6a - six-point, (brown) behind fuse/relay
panel
T6b - six-point, (black) under fight side
instrument panel, behind glove compartment
T6c - six-point, (brown, black) under right side
instrument panel, behind glove compartment
T14 - fourteen-point, (black) on inst. cluster
Ground connections
(1) - strap, from batt to body to trans
(2) - splice in left front wiring harness
(3) - in instrument cluster wiring harness
(4) - near fuse/relay panel
(5) - in luggage compart., left side
(6) - on intake manifold
(7) - battery holder, left side
(8) - near steering column