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Wiring diagram layout Wiring diagram layout
Wiring diagram layout
I
Relay panel
Indicated by grey area.
Consumer circuit with wire routing
All switches and contacs are shown in the off
position.
Vehicle ground
Numbers in circle indicate location on vehicle
(see legend).
Current track number
Makes it easier to find the connections.
Legend
In all wiring diagrams the same component
designation (code) is used for a particular
component; for example, always A for battery.
31
30
+
G
D
B +
C
C
1
B
30
1
M
16,0
ro
4e/2
50
2
3
4
5
6
7
8
T
4e/1
A
25,0
+
--
10,0
ro
2
25,0
sw
1
25,0
97--08151
500
100
T
0,5
bl
D
/50
2,5
ro/sw
T
10a/1
80A
2
S
162
110A
1
S
163
Edition
ESIS
WIRING
COLOR CODE
ws = white
sw = black
ro = red
br = brown
gn = green
bl = blue
gr = grey
li
= lilac
ge = yellow
A
-
Battery
B
-
Starter
C
-
Generator (GEN)
C1
-
Voltage Regulator (VR)
D
-
Ignition/Starter Switch
S162 -
Fuse -1- (30) in fuse bracket / battery
S163 -
Fuse -2- (30) in fuse bracket / battery
T4e -
4-Pin Connector, on transmission
T10a -
10-Pin Connector, on protective housing for
control module, in engine compartment, left
1
-
Ground strap, battery to body
2
-
Ground strap, transmission to body
500
-
Screw connection -1- (30), on relay panel 11
9
15
12
5
8
7
13
10
97--08152
43
44
45
46
47
48
49
50
51
52
53
54
55
56
31
31
a
0,5
gn/ge
257
J
T45/28
T45/3
12
0,5
br/ge
T45/25
T45/1
1,5
br/ro
11
T
28a/
17
4/1
G
39
T45/38 T45/15
T
T
4/2
T
4/3
sw
37
1,0
ws/ro
1,0
br/sw
32
T
4/4
0,5
ws
0,5
sw
ws
S3/5
19/15
17/30
16/85
6/30
J
17
4
c
1
3
2
21
20
18
22
24
S3/4
S3/2
S3/1
S2/5
1
2
N
80
6
G
G
1
3
4
2
M
135
15A
S
228
28
28a
4,0
bl
504
b
c
1,0
ge/sw
0,5
li/ws
0,5
br/ws
1,0
br
S3/3
0,5
sw
T45/21
30
0,5
ro
1,0
ro
0,5
ro
114
E11
6
4
17
T45/29
T6/2
0,5
sw
362
J
14
16
Edition
ESIS
II
How to read wiring diagrams
How to read wiring diagrams Edition
ESIS
How to read wiring diagrams
III
4
How to read wiring diagrams
1 - Relay location number
Indicates location on relay panel.
2 - Arrow
Indicates wiring circuit is continued on the previous and/or next page.
3 - Connection designation - relay control module on relay panel
Shows the individual terminals in a multi-point connector.
For example: contact 24 on terminal
on relay panel.
4 - Diagram of threaded pin on relay panel
White circle shows a detachable connection.
5 - Fuse designation
For example: S228 = Fuse number 28, 15 amps, in fuse holder
6 - Reference of wire continuation (current track number)
Number in frame indicates current track where wire is continued.
7 - Wire connection designation in wiring harness
Location of wire connections are indicated in the legend.
8 - Terminal designation
Designation which appears on actual component and/or terminal number of a multi-point
connector.
9 - Ground connection designation in wire harness
Locations of ground connections are indicated in legend.
10 - Component designation
Use legend at bottom of page to identify the component code.
11 - Component symbols (see page IV - VI)
12 - Wire cross-section size (in mm
2
) and wire colors
Abbreviations are explaining in color chart beside the wiring diagram.
13 - Component symbol with open drawing side
Indicated component is continued on another wiring diagram. The number of corresponding
wiring diagram can taken from list of contents.
14 - Internal connections (thin lines)
These connections are not wires. Internal connections are current carrying and are listed to allow
tracing of current flow inside components and wiring harness.
15 - Reference of continuation of wire to component
For example: Control module for anti-theft immobilizer J362 on 6-Pin Connector, terminal 2
16 - Relay panel connectors
Shows wiring of multi-point or single connectors on relay panel
For example: S3/3 - Multi-point connector S3, terminal 3
17 - Reference of internal connection continuation
Letters indicate where connection continues on the previous and/or next page. Edition
ESIS
IV
Symbols used for wiring diagrams
Fuse
Thermo-fuse
(Circuit Breaker)
Battery
Starter
Generator (GEN)
Ignition Coil
Distributor (electronic)
Spark plug connector
and plug
Glow plug
Heater element
Switch
(manually operated)
Switch
(thermally operated)
Push putton switch
(manually operated)
Switch
(mechanically operated)
Switch
(pressure operated)
Multiple switch
(manually operated)
Variable resistor
(Rheostat)
Resistor
temperature dependent
Relay
Resistance
Heater element
temperature dependent
Â
M
G
Â
Â
97--12201
Â
Symbols used in wiring diagrams Edition
ESIS
Symbols used for wiring diagrams
V
Diode
Zener diode
Light bulb
Light bulb
(dual filament)
LED
Interior light
Instrument
(Gauge)
Electronic control
module
Rear window defogger
heat element
Cigarette lighter
Solenoid valve
Magnetic clutch
Wire connector
Pin connector
Multi-point connector
at component
Wire connection
detachable
Wire connection
fixed
Internal connections
in component
Resistance wire
Diode
light sensitiv
Wire connection in
wiring harness
97--08153
Shield wire
Symbols used in wiring diagrams Edition
ESIS
VI
Symbols used for wiring diagrams
Control motor,
headlight range adjustment
Motor
Wiper motor
2-speed
Crankshaft position sensor
(CKP)
Knock sensor (KS)
Analog clock
Digital clock
Multi-function
indicator
Airbag spiral spring
Speed sensor
Horn
Speeker
Antenna with electronic
antenna amplifier
Radio
M
M
97--08154
M
Heated oxygen sensor
Symbols used in wiring diagrams Edition
ESIS
Explanation of troubleshooting procedures
VII
Explanation of troubleshooting procedures
Starting with the reported problem, troubleshooting procedures show step-by-step what is checked and how it is checked
in order to find the problem in the quickest and most reliable way. If several causes (of a problem) are possible in one system,
a test procedure is used for diagnosis.
Structure of a Test step:
What is checked (assumed problem)
How is it checked
Test results
Cause of problem/repair
instructions
To next test
Example of a troubleshooting procedure:
Open circuit in relay panel between connector terminals A4 and D2
- Connect terminal D2 of multi-point connector to ground
using Connector Test Kit VW 1594
Warning lamp lights
Warning lamp does not light
Replace relay panel
To next test