Glossary “rear antilock brake system (RABS)” Definition:
A two-wheel Kelsey-Hayes ABS used on the rear wheels of Ford light-duty pickup trucks
r
rear axle assembly
Glossary “rear axle assembly” Definition:
A group of parts that operate to transfer driving torque from the drive shaft to the rear wheels, and includes mounting pads for the rear springs and shocks.
real-time
Glossary “real-time” Definition:
A real-time computer can respond with output information instantly
real-time sampling
Glossary “real-time sampling” Definition:
Sampling mode in which the oscilloscope collects as many samples as possible from one triggered acquisition.
reaction time
Glossary “reaction time” Definition:
1). The amount of time required to physically apply the brakes of a vehicle after mentally being aware of the necessity to do so. 2). The amount of time required from the moment the Christmas tree light turns green until the vehicle trips the starting-line timing light.
reactivity
Glossary “reactivity” Definition:
Characteristics of a material that cause it to react violently with another material, such as air, heat, or water.
reactor
Glossary “reactor” Definition:
1). The stator in a torque converter. 2). The component, or part that receives a vibration from an originator and conductor and reacts to the vibration by moving.
read-only memory
Glossary “read-only memory” Definition:
A solid-state storage chip that is programmed at the time of its manufacture, cannot be programmed by the computer user, and retains its program when the computer’s power is turned off.
reading tires
Glossary “reading tires” Definition:
Involves inspecting tire tread wear and diagnosing the cause.
reactance
Glossary “reactance” Definition:
The impedance that a pure inductance or a pure capacitance provides to current flowing in an ac circuit.
reaction disk
Glossary “reaction disk” Definition:
Components in the vacuum power booster that provide pedal feel or feedback to the driver.
reaction member
Glossary “reaction member” Definition:
Member of a planetary gearset that is held in order to produce an output motion. Other members react against the stationary, held member.
RDI
Glossary “RDI” Definition:
Restraint Deployment Indicator
RDK
Glossary “RDK” Definition:
Acronym for (Porsche) Tire Pressure Monitor System
reach
Glossary “reach” Definition:
Length of the threaded area of a spark plug.
RCU
Glossary “RCU” Definition:
Remote Chassis Unit
RCV
Glossary “RCV” Definition:
Rollover Check Valve
RD
Glossary “RD” Definition:
Red
RDES
Glossary “RDES” Definition:
Remote Divert Electric Switching Valve
RCD
Glossary “RCD” Definition:
Refrigerant Containment Device.