The abbreviation codes that appear in this workshop manual stand for the following, respectively.
Abbreviation code Original word Meaning
A/C
Air Conditioner
Refers to air conditioner.
A/T, AT
Automatic Transmission
Refers to automatic transmission
A/Y or Ay Assembly
API
American Petroleum
Institute
The standards set forth by the American Petroleum Institute (abbreviated as API
Classification) have been employed to evaluate and classify properties of various oils.
Engine oils for gasoline engines are classified as SD, SE, SF and so on, whereas engine oils
for diesel engines are classified as CC, CD and so on.
In instances where fitting becomes too loose due to wear resulting from use for a long period
of time or due to frequent removal/installation operations, if the fitting part (e.g. piston) is
replaced with a part having larger dimensions, the other mating part may be put into use
again. “Oversized” parts denote those parts having larger dimensions compared with the
standard parts.
For example, automotive oils are designated as SAE so and so number.
These designation numbers have been set forth by the Society of Automotive Engineers in the
United States of America (SAE). The larger the SAE number, the higher the oil viscosity.
Conversely, the smaller the SAE number, the lower the oil viscosity.
Refers to a component comprising more than two single parts which are welded, staked, or
studded to each other to form a single component.
When referring to automotive parts, “standard” represents those parts which have been
installed originally by the manufacturer and which have standard dimensions.
Refers to an assembled component comprising more than two single parts or sub-assembly
parts.
Radio which incorporates variable capacitance, etc. which varies the value according to an
applied voltage or current.
In the same manner as with the “oversized” parts, if fitting part (e.g. bush and bearing) is
replaced with a part having smaller bore dimensions, the other mating part may be put into
use again. “Under sized” parts denote those parts having smaller dimensions compared with
standard parts.
ECU Electronic Control Unit Refers to electronic control unit.
EFI
Electronic
Fuel Injection
Refers to electronic fuel injection.
F/L Fusible Link Refers to fusible link.
L.H.D. Left-Hand Drive Left-hand drive vehicle.
LH Left Hand Refers to left side.
M/T, MT Manual Transmission Refers to manual transmission.
MP Multipurpose Means that the following item has multi-purposes.
O/S
Oversize
PR Ply Rating Represents strength of tires.
The larger the ply rating number, the stronger the tire strength.
R.H.D. Right-Hand Drive Right hand drive vehicle
RH Right Hand Refers to right side.
S/A Sub-Assembly
SAE Society of Automotive
Engineers
SST Special Service Tool Refers to a tool designed for a specific purpose.
STD Standard
T Torque Refers to tightening torque.
U/S Under Size
VSV Vacuum Switching
Valve
Refers to vacuum switching valve.
W/
With
Denotes that the following part is attached.
ETR Electronic Tuning
Radio
