Brake Switch (Cruise Control): Testing and Inspection

Refer to Speed Control Wiring Diagrams. Prior to performing any tests, ensure servo or valve body and electronic module are properly tested.

Fig. 2 Speed control wiring diagram. 1980-84 Vans, Wagons & Front Sections:

Fig. 3 Speed control wiring diagram. 1981-84 Ramcharger, Trail Duster & Conventional Cabs:

Fig. 4 Speed control wiring diagram. 1982-84 Rampage & 1983 Scamp:

Fig. 5 Speed control wiring diagram. 1984 Mini-Vans/Wagons (1985 similar):

Fig. 6 Speed control wiring diagram. 1985 Conventional Cabs & Ramcharger:

Fig. 7 Speed control wiring diagram. 1985 rear wheel drive Ram Van & Wagons:

Fig. 8 Speed control wiring diagram. 1986-87 Conventional Cabs & Ramchargers:

Fig. 9 Speed control wiring diagram. 1986 rear wheel drive Ram Van & Wagons:

Fig. 10 Speed control wiring diagram. 1986 Mini-Vans/Wagons:

Exc. 1986-87 Mini-Vans/Wagons

1. Disconnect double connector at switch pigtail, then connect a suitable 12 volt power source to either terminal.
2. Connect a suitable test lamp to other terminal and ground. Test lamp should illuminate when brake pedal is in normal position and go off when brake pedal is depressed 1/2 - 3/8 inch maximum.