Connections on the combination steering wheel switch and steering lock (VW Transporter T4)

A. Ignition switch: 1. Terminal 15; 2. Terminal X; 3. Terminal 50; 4. Terminal 30; 5. Terminal SU (for cars supplied with a radio receiver)

B. Plug connection, 5-pin: 1. Windscreen wiper switch, terminal 53b; 2. Windscreen wiper switch, terminal 53a; 3. Windscreen wiper switch, terminal 53; 4. Windscreen wiper switch, terminal 53e; 5. Windscreen wiper switch, terminal Y

C. Plug connection, 5-pin: 1. Hazard warning switch, terminal 49; 2. Manual switch for low beam and light signal, terminal 56b; 3. Manual switch for low beam and light signal, terminal 56; 4. Manual switch for low beam and light signal, terminal 56a; 5. Manual switch for low beam and light signal, terminal 30

D. Plug connection, 4-pin: 1. Windscreen wiper switch, terminal L; 2. Windscreen wiper switch, terminal T; 3. Windscreen wiper switch, terminal 31; 4. Hazard warning switch, terminal, 15

E. Plug connection, 7-pin: 1. Turn on the sound signal, terminal 71; 2. Hazard warning switch, terminal 49a; 3. Turn signal switch, terminal L; 4. Parking light switch, terminal PL; 5. Parking light switch, terminal P; 6. Parking light switch, terminal PR; 7. Turn signal switch, terminal R