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Abbreviations

List of automotive abbreviations which may be used in shop manual.
ABS
Anti-lock Brake System
A/C
Air Conditioning, Air Conditioner
ACEA
Association des Constructeurs Europeens d' Automobiles
ACL
Air Cleaner
A/F
Air Fuel Ratio
AHB
Advanced Hydraulic Booster
ALR
Automatic Locking Retractor
ALT
Alternator
AMP
Ampere(s)
ANT
Antenna
API
American Petroleum Institute
APP
Accelerator Pedal Position
APPROX.
Approximately
ASSY
Assembly
A/T
Automatic Transmission
ATDC
After Top Dead Center
ATF
Automatic Transmission Fluid
ATT
Attachment
AUTO
Automatic
AUX
Auxiliary
BARO
Barometric
BAT
Battery
BCM
Battery Condition Monitor
BDC
Bottom Dead Center
BTDC
Before Top Dead Center
CARB
Carburetor
CAT or CATA
Catalytic Converter
CD
Compact Disc
CHG
Charge
CKF
Crankshaft Speed Fluctuation
CKP
Crankshaft Position
CLV
Calculated Load Value
CMBS
Collision Mitigation Brake System
CMP
Camshaft Position
CO
Carbon Monoxide
COMP
Complete
CPB
Clutch Pressure Back up
CPC
Clutch Pressure Control
CPU
Central Processing Unit
CVT
Continuously Variable Transmission
CVTF
Continuously Variable Transmission Fluid
CYL
Cylinder
CYP
Cylinder Position
DIFF
Differential
DLC
Data Link Connector
DLI
Distributor Less Ignition
DOHC
Double Overhead Camshaft
DOT
Department of Transportation
DPF
Diesel Particulate Filter
DPI
Dual Point Injection
DPSF
Dual Pump System Fluid
DTC
Diagnostic Trouble Code
EBD
Electronic Brake Distribution
ECM
Engine Control Module
ECT
Engine Coolant Temperature
EGR
Exhaust Gas Recirculation
EGT
Exhaust Gas Temperature
ELD
Electrical Load Detector
EPR
Evaporator Pressure Regulator
EPS
Electrical Power Steering
ETCS
Electronic Throttle Control System
EVAP
Evaporative Emission
EX
Exhaust
F
Front
FIA
Fuel Injection Air
FL
Front Left
FP
Fuel Pump
FR
Front Right
FRP
Fuel Rail Pressure
FSR
Fail Safe Relay
FWD
Front Wheel Drive
GAL
Gallon
GND
Ground
GPS
Global Positioning System
H/B
Hatchback
HBA
Hydraulic Brake Assist
HC
Hydrocarbons
HDS
Honda Diagnostic System
HFT
Hands Free Telephone
HID
High Intensity Discharge
HIM
Honda Interface Module
HO2S
Heated Oxygen Sensor
HPS
Hydraulic Power Steering
HVAC
Heating, Ventilation, and Air Conditioning
IAB
Intake Air Bypass
IAC
Idle Air Control
IACV
Idle Air Control Valve
IAR
Intake Air Resonator
IAT
Intake Air Temperature
ICM
Ignition Control Module
ID
Identification
ID or I.D.
Inside Diameter
i-DSI
Intelligent-Dual & Sequential Ignition
IG or IGN
Ignition
IMA
Idle Mixture Adjustment
Integrated Motor Assisted
IMMOBI.
Immobilizer (Immobiliser)
IMRC
Intake Manifold Runner Control
IMT
Intake Manifold Tuning
IN
Intake
INJ
Injection
INT
Intermittent
IQA
Injector Quantity Adjustment (Diesel model)
ISV
Intake Shutter Valve
KS
Knock Sensor
L
Left
L/C
Lock-up Clutch
LCD
Liquid Crystal Display
LED
Light Emitting Diode
LEV
Low Emission Vehicle
LF
Left Front
LH
Left Handle
LHD
Left Handle Drive
LR
Left Rear
LSD
Limited Slip Differential
L4
In-line Four Cylinder (engine)
MAF
Mass Air Flow
MAP
Manifold Absolute Pressure
MAX.
Maximum
MBS
Mainshaft Brake System
MCK
Motor Check
MCM
Motor Control Module
MCU
Moment Control Unit
MICS
Multiplex Integrated Control System
MICU
Multiplex Integrated Control Unit
MIL
Malfunction Indicator Lamp
MIN.
Minimum
MPI
Multi Point Injection
M/S
Manual Steering
M/T
Manual Transmission
MTF
Manual Transmission Fluid
NOx
Oxides of Nitrogen
OBD
On-board Diagnostic
OD or O.D.
Outside Diameter
OPDS
Occupant Position Detection System
O2S
Oxygen Sensor
PAIR
Pulsed Secondary Air Injection
PCM
Powertrain Control Module
PCV
Positive Crankcase Ventilation
Proportioning Control Valve
PDU
Power Drive Unit
PGM-FI
Programmed-fuel Injection
PGM-IG
Programmed Ignition
PH
Pressure High
PL
Pilot Light or Pressure Low
PMR
Pump Motor Relay
P/N
Part Number
PRI
Primary
P/S
Power Steering
PSF
Power Steering Fluid
PSP
Power Steering Pressure
PSW
Pressure Switch
Qty
Quantity
R
Right
REF
Reference
RH
Right Handle
RHD
Right Handle Drive
RL
Rear Left
RON
Research Octane Number
RR
Rear Right
SAE
Society of Automotive Engineers
SCS
Service Check Signal
SEC
Second, Secondary
SOHC
Single Overhead Camshaft
SOL
Solenoid
SPEC
Specification
S/R
Sun Roof
SRS
Supplemental Restraint System
STD
Standard
SW
Switch
T
Torque
TB
Throttle Body
T/B
Timing Belt
TC
Torque Converter
TCM
Transmission Control Module
TCS
Traction Control System
TDC
Top Dead Center
TFT
Thin Film Transistor
T/N
Tool Number
TP
Throttle Position
TPMS
Tyre Pressure Monitoring System
TWC
Three Way Catalytic Converter
VC
Viscous Coupling
VCM
Variable Cylinder Management
VIN
Vehicle Identification Number
VSA
Vehicle Stability Assist
VSS
Vehicle Speed Sensor
VTEC
Variable Valve Timing & Valve Lift Electronic Control
VVIS
Variable Volume Intake System
V6
V-engine Six Cylinder (engine)
W
With
W/O
Without
WOT
Wide Open Throttle
2WD
Two Wheel Drive
4WD
Four Wheel Drive
4AT
4-speed Automatic Transmission
5AT
5-speed Automatic Transmission
5MT
5-speed Manual Transmission
6MT
6-speed Manual Transmission
P
Park
R
Reverse
N
Neutral
D4
Drive (1st through 4th gear)
D3
Drive (1st through 3rd gear)
D
Drive
M
Manual mode
S
Second
L
Low
O/D
Over Drive
1ST
Low (gear)
2ND
Second (gear)
3RD
Third (gear)
4TH
Fourth (gear)
5TH
Fifth (gear)
6TH
Sixth (gear)