1992 Ford Bronco Cruise Control Wiring Diagram - Servo, Amplifier & Wire Colors

This document is a Ford speed control (cruise control) system wiring schematic, uploaded as applicable to a 1992 Ford Bronco. It shows the vacuum-servo type cruise control circuit, including the servo assembly (part 9C734), amplifier assembly (9D844), connectors C-714, C-717, C-713, C-305, and connectors X and Y, plus the dash panel grommet pass-through. It documents the clutch switch (9F645, normally open but biased closed) used on manual transmission vehicles and the jumper wire (9D821) used on automatic transmission vehicles. Power feeds shown include a 15 amp fuse in the fuse panel from the ignition switch (ACCY), a 20 amp fuse F1 through the brake switch, and a 20 A fuse at F16. The steering wheel switch circuit shows OFF, ON, SET, COAST, and RESUME functions with resistor values of 2.2K, 680, and 120 ohms, routed through the horn switch, slip rings and brushes, and horn relay (9C792). A complete circuit legend table lists 17 circuit numbers (1, 1A, 460, 511, 511A, 901, 150, 57, 151, 296, 149, 148, 147, 146, 145, 144, 6) with descriptions, wire gauges (16-20 AWG), and primary/secondary wire colors. The PSOM (speed sensor) connects via circuits 150 and 901. Drawing reference: L2839-G.