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Automotive Abbreviations

List of automotive abbreviations which may be used in shop manual.


ABS
Anti-lock Brake System
A/C
Air Conditioning, Air Conditioner
ACC
Adaptive Cruise Control/Accessory
ACEA
Association des Constructeurs Europeens d’ Automobiles
(The European Automobile Manufacturers Association)
ACL
Air Cleaner
AFS
Adaptive Front lighting System
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
AWD
All Wheel Drive
 
BARO
Barometric
BAT
Battery
B-CAN
Body Controller Area Network
BBC
Back Boost Converter
BCM
Battery Condition Monitor
BDC
Bottom Dead Center
BTDC
Before Top Dead Center
 
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
CNG
Compressed Natural Gas
CO
Carbon Monoxide
COMP
Complete
CPB
Clutch Pressure Backup
CPC
Clutch Pressure Control
CPU
Central Processing Unit
CVT
Continuously Variable Transmission
CVTF
Continuously Variable Transmission Fluid
CYL
Cylinder
CYP
Cylinder Position
 
DBW
Drive by Wire
DCT
Dual Clutch Transmission
DIFF
Differential
DLC
Data Link Connector
DOHC
Double Overhead Camshaft
DOT
Department of Transportation
DPF
Diesel Particulate Filter
DPI
Dual Point Injection
DPS
Dual Pump System
DPSF
Dual Pump System Fluid
DRL
Day Time Running Light
DTC
Diagnostic Trouble Code
 
EBD
Electronic Brake force Distribution
ECT
Engine Coolant Temperature
ECU
Electronic Control Unit
EDLC
Electric Double Layer Capacitor
EGR
Exhaust Gas Recirculation
EGT
Exhaust Gas Temperature
ELD
Electrical Load Detector
ELR
Emergency Locked Retractor
EPR
Evaporator Pressure Regulator
EPS
Electrical Power Steering
ETCS
Electronic Throttle Control System
EVAP
Evaporative Emission
EX
Exhaust
 
F
Front
F-CAN
Fast Controller Area Network
FIA
Fuel Injection Air
FL/FR
Front Left/Front Right
FP
Fuel Pump
FRP
Fuel Rail Pressure
FSR
Fail Safe Relay
FWD
Front Wheel Drive
 
GAL
Gallon
GCC
Gulf Cooperation Council
GND
Ground
GNSS
Global Navigation Satellite System(s)
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
i-DTEC
Intelligent Diesel Technology
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
IPM
Intelligent Power Module
IPU
Intelligent Power Unit
IQA
Injector Quantity Adjustment (Diesel model)
ISV
Intake Shutter Valve
 
KS
Knock Sensor
 
L
Left
LAF
Linear Air Fuel ratio
L/C
Lock-up Clutch
LCD
Liquid Crystal Display
LED
Light Emitting Diode
LEV
Low Emission Vehicle
LF/LR
Left Front/Left Rear
LH
Left Handle
LHD
Left Handle Drive
LKAS
Lane Keep Assist System
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
MVCI
Modular Vehicle Communication Interface
 
NOx
Oxides of Nitrogen
 
OAD
Over-run Alternator Decoupler
OBD
On-board Diagnostic
OD or O.D.
Outside Diameter
O2S
Oxygen Sensor
 
PAIR
Pulsed Secondary Air Injection
PCM
Powertrain Control Module
PCU
Power Control Unit
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 Lamp/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
RES
Rear Entertainment System
RFC
Radiator Fan Control
RH
Right Handle
RHD
Right Handle Drive
RL/RR
Rear Left/Rear Right
RON
Research Octane Number
 
SAE
Society of Automotive Engineers
SBW
Shift by Wire
SCS
Service Check Signal
SEC
Second, Secondary
SH-AWD
Super Handling – All Wheel Drive
SOHC
Single Overhead Camshaft
SOL
Solenoid
SOL.V.
Solenoid Valve
SPEC
Specification
S/R
Sun Roof
SRS
Supplemental Restraint System
STD
Standard
SW
Switch
 
TC
Torque Converter
TCM
Transmission Control Module
TCS
Traction Control System
TCU
Telematics Control Unit
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
VTC
Variable Timing Control
VTEC
Variable Valve Timing & Valve Lift Electronic Control
VTM-4
Variable Torque Management 4WD System
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
P
Park
R
Reverse
N
Neutral
D4
Drive (1st through 4th gear)
D3
Drive (1st through 3rd gear)
D
Drive
M
Manual mode/Sequential mode
S
Second/Sports Mode
L
Low
O/D
Over Drive
1ST
Low (gear)
2ND
Second (gear)
3RD
Third (gear)
4TH
Fourth (gear)
5TH
Fifth (gear)
6TH
Sixth (gear)

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