Glossary “control valve” Definition:
1). Mechanism, located inside the power steering gearbox or on the steering relay rod, that controls the amount of power assist relayed to the steering linkage via a power piston. 2). Mechanical, pneumatic, or electric valve used to control the flow of coolant into the heater core.

Glossary “control valve assembly” Definition:
The block of metal that contains the hydraulic passages and electric solenoids used to direct brake fluid during an ABS event.

Glossary “control pressure” Definition:
Fuel pressure required for a fuel-injection system to function.

Glossary “control thermostat” Definition:
Temperature-actuated electrical switch used to cycle the compressor clutch on and off thereby controlling the air conditioning system temperature.

Glossary “control points” Definition:
Holes, points, or flat surfaces that are used to align body parts during assembly or reconstruction.

Glossary “control arm” Definition:
Main link between the vehicle frame and the wheels that acts as a hinge to allow the wheels to go up and down independently of the chassis.

Glossary “control cable” Definition:
1). A rigid wire, generally sheathed, used for the remote control of a device, such as a parking brake. 2) . An insulated wire used to supply electric current to a motor, controls, or other electrically operated circuits or devices.

Glossary “control head” Definition:
Master controls (such as temperature and fan speed) that the vehicle driver uses to select the desired system condition.

Glossary “control link” Definition:
Term used for control arm.

Glossary “control plunger” Definition:
Device that is regulated by the fuel-injection-system airflow sensor to regulate fuel (volume) delivered to the injectors.