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Q:

cruise control on 1991 Ford E-150

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
cruise control not working any ideas or wiring diagrams?
(1) Answer
Start by looking at your brake light switch and your speed control deactivation switch. If either are malfunctioning, the system will not start up as a safety measure.