LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Jaguar >> 1987 >> XJ-SC >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Operation >> Control Unit
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Control Unit

The control unit is located under right side of instrument panel across from blower motor. The control unit receives signals from speed transducer and sends out signals to open or close throttle as needed. The control unit is engaged and memory is recorded when set button is pressed inward.

Memorized speed may be recalled by switching control switch to "RESUME" position. Memory is canceled when control switch is set to "OFF" position. When brake pedal is depressed, control unit signals throttle servo to dump vacuum causing throttle to close. Set speed adjustment is made through access hole in control unit.