System Diagram

Automatic Transmission (gasoline only)
1985-1988 Jetta
1989 Golf, Mexico Production

Tracks 1-11:

Description Current Track
Alternator 5
Back-up light, left 4
Back-up light, right 5
Battery 6
Brake light, left 3
Brake light, right 5
Cold start valve 10
Console light 11
Ign/start switch 2
Neutral safety switch 6-8
Starter 6-8
Tail light, left 1
Thermo time switch 9
Turn signal light, LR 2

Wire Connectors
T4 - 4 point, under instrument panel
T2a - double, near ignition coil
T2b - double, engine compartment (water tray)

Ground Connections
18 - engine compartment, left
21 - near seat track, left