What Do You Know About Wiring?

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What Do You Know About Wiring?

Post by david58 » Tue Sep 29, 2009 6:47 pm

Volkswagen Wiring Terminal Designations and Wire Colors

Volkswagen used numbers and color coding for the electrical wiring.

All Wires that are solid BROWN in color go to terminal 31 and are a direct NEGATIVE connection to chassis GROUND.
That should be easy to remember. BROWN, the color of dirt, is BROWN.

All solid RED wires go to terminal connections with the number 30 marked
on them, are HOT all the time and ARE NOT FUSED.

When a wire has 2 or more colors and 1 color is BROWN then that wire
GROUNDS thru a relay or some other device instead of directly to the
chassis or the battery GROUND.

When a wire with RED has another color on it then it is HOT and fused and
possibly provides POWER from a device like a relay and not directly from the battery.

All BLACK wires including BLACK wires with a second color get POWER
indirectly. So they will only be HOT when the ignition switch is in the on or in the start position.

Stray Catalyst
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Joined: Sun Sep 20, 2009 6:42 am
Location: New Hampshire

Re: What Do You Know About Wiring?

Post by Stray Catalyst » Fri Oct 16, 2009 11:48 am

Terminal numbers!

From Bosch Automotive Handbook, 3rd edition

Terminal Designations (Excerpts from DIN Standard 72 552) The terminal
designations do not identify the conductors, because device with
different terminal designations can be connected at the two ends of each
conductor. If the number of terminal designations is not sufficient
(multiple-contact connections), the terminals are consecutively numbered
using numbers or letters whose representations of specific functions are
not standardized.

Terminal Definition
1 Ignition coil, ignition distributor, low voltage
Ignition distributor with two separate electrical circuits
15 Switched + downstream of battery
(output of ignition/driving switch)
15a Output at dropping resistor to ignition coil and starter
30 input from + battery terminal, direct
30a input from + terminal of battery II
31 Return line to battery - battery terminal or ground, direct
31b Return line to negative battery terminal or ground, via switch or relay
(switched negative)
31a Return line to - terminal of battery II
31c Return line to - terminal of battery I
32 Return line
(Polarity reversal possible at terminals 32-33)
33 Main terminal connection
(Polarity reversal possible at terminals 32-33)
33a Self-parking switch-off
33b Shunt field
33f For second lower-speed range
33g For third lower-speed range
33h For fourth lower-speed range
33L Counterclockwise rotation
33R Clockwise rotation
45 Separate starter relay output; starter input (main current)
45a Output, starter I
49 Input
49a Output
49b Output, second turn-signal circuit
49c Output, third turn-signal circuit
50 Starter control (direct)
51 DC voltage at rectifier
51e DC voltage at rectifier with choke coil for daytime driving
53 Wiper motor, input (+)
53a Wiper (+), self-parking switch-off
53b Wiper (shunt winding)
53c Electric windshield-washer pump
53e Wiper (brake winding)
53i Wiper motor with permanent magnet and third brush (for higher speed)
55 Fog lamps
56 Headlamp
56a High beam, high-beam indicator lamp
56b Low beam
56d Headlamp-flasher contact
57 Side-marker lamp: motorcycles, mopeds. Abroad also cars, trucks, etc.
57a Parking lamp
57L Parking lamp, left
57R Parking lamp, right
58 Side-marker lamps, tail lamps, license-plate lamps and
instrument-panel lamps
58b Tail-lamp changeover for single-axle tractors
58c Trailer plug-and-receptacle assembly for single-conductor tail-lamp
cable with fuse in trailer
58d Variable-intensity instrument-panel lamp, tail-lamp and side-marker lamp
58L Side-marker lamp, left
58R Side-marker lamp, right; license-plate lamp
ALTERNATOR (magneto, generator)
59 AC voltage, output, rectifier, input
59a Charging armature, output
59b Tail-lamp armature, output
59c Stop-lamp armature, output
61 Alternator charge-indicator lamp
Break-contact and changeover switches
81 Input
81a 1st output, break side
81b 2nd output, break side
Make-contact switches
82 Input
82a 1st output
82b 2nd output
82z 1st input
82y 2nd input
Multiple-position switches
83 Input
83a Output, position 1
83b Output, position 2
83L Output, left-hand position
83R Output, right-hand position
84 Input, actuator and relay contact
84a Output, actuator
84b Output, relay contact
85 Output, actuator (end of winding to ground or negative)
86 Start of winding
86a Start of winding or 1st winding
86b Winding tap or 2nd winding
Relay contact for break and changeover contacts
87 Input
87a 1st output (break side)
87b 2nd output
87c 3rd output
87z 1st input
87y 2nd input
87x 3rd input
Relay contact for make contact
88 Input
Relay contact for make and changeover contacts (make side)
88a 1st output
88b 2nd output
88c 3rd output
Relay contact for make contact
88z 1st input
88y 2nd input
88x 3rd input
B+ Battery positive
B- Battery negative
D+ Dynamo postive
D- Dynamo negative
DF Dynamo field
DIRECTION INDICATOR (turn-signal flasher)
L Turn-signal lamps, left
R Turn-signal lamps, right

Stray Catalyst

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