Brake Switch (Cruise Control): Service and Repair

ON VEHICLE
1. Turn ignition to On position and the cruise switch to On-Auto position.
2. Connect test light to suitable ground.
3. Probe brown wire at brake switch connector. Lamp should illuminate.
4. With probe still attached to brown wire, check switch adjustment. Light should go out when brake pedal is depressed 1/8- 1/2 inch.
5. If lamp did not illuminate in step 3, probe wire in adjacent connector cavity.
6. If lamp illuminates, adjust or replace switch as necessary.
7. If lamp does not illuminate, repair wiring to switch.

OFF VEHICLE
Using self powered test lamp, lamp should be off with switch plunger extended and should illuminate with switch plunger fully depressed.