Mechanics Dictonary
Info thanks to Flatrater.
Here is a list of different modules in GM cars and trucks and their abbreviations
Module- Module Description
ABS- Antilock Brake Traction Control
ACC -Adaptive Cruise Control with Alert
ADG -Accommodated Device Gateway
AHLL -Automatic Head Lamp Leveling
AHS -Auxiliary Heating System
AMP -Amplifier
APC -Auto Personal Computer
ARS -Antenna Reception System
ATC -Active Transfer Case
BCM -Body Control Module
CCP -Climate Control Panel
CDS -Compact Disc
CDX -Multiple Compact Disc Changer
CHIME -Chime
CID -Color Information Display
CIM -Column Integration Module
CLM -Column Locking Module
CMM -Column Memory Module
DAB -Digital Audio Broadcast
DDM -Driver Door Module
DDS -Driver Door Switch
DIC -Driver Information Center
DIM -Dash Integration Module
DPM -Driver Position Module
DSM -Driver Seat Module
EBCM -Electronic Brake Control Module
ECC -Electronic Climate Control
ECM -Engine Control Module
EKM -EasyKey Module
EPS -Electric Power Steering
FICM -Fuel Injector Control Module
FTC -Folding Top Controller
GID -Graphics Information Display
HCM -Heating, Ventilation, Air Conditioning Control Module
HEMC -Hybrid Electric Motor Controller
HUD -Head Up Display
HVAC -Heating, Ventilation, Air Conditioning
ICC -Integrated Chassis Control
IPC -Instrument Panel Cluster
IPM -Instrument Panel Integration Module
IRC -Integrated Radio Chassis
LDS -Left Detection System
LGM -Lift Gate Module
LMD -Left Middle Door Module
LRD -Left Rear Door Module
MCS -Mobile Communication System
MDS -Mini Disc
MDX -Mini Disc Changer
MMM -Memory Mirror Module
MRM -Moveable Roof Module (Hardtop)
MSM -Memory Seat Module
NAV -Navigation
NDH -Navigation Display Head
NRC -Navigation Radio
TMS/ONS -Telematic System/Onstar
PAS -Parking Assistance
PBA -Park Brake Assist
PCM -Powertrain Control Module
PDM -Passenger Door Module
PDS -Passenger Door Switch
PHN -Phone
PSM -Passenger Seat Module
RAD -Radio
RAHVAC -Rear Auxiliary Heating, Ventilation, Air Conditioning
RCC -Rear Climate Control
RDS -Right Detection System
REC -Rear Electrical Center
RFA -Remote Function Actuation
RIM -Rear Integration Module
RMD -Rear Middle Door Module
RRD -Right Rear Door Module
RSA/HVAC -Rear Seat Audio / Rear Heating, Ventilation, Air Conditioning
RSD -Right Side Detection
RSM -Rear Seat Module
RTD -Real Time Damping
SBBC -Smart Brake Booster Controller
SCM -Seat Control Module
SDARS -Sattelite Digital Audio Reception System
SDG -Serial Data Gateway
SDM -Sensing Diagnostic Module (Supplemental Inflatable Restraints)
SIC -Secondary Information Center
SODM -Side Object Detection Module - Left
SODM -Side Object Detection Module - Right
TCCM -Transfer Case Control Module
TCM -Transmission Control Module
TMS -Telematic System
TTM -Tilt Telescoping Module
TVM -Television Module
UEC -Underhood Electrical Center
VCM -Vehicle Control Module
VCU -Vehicle Control Unit (OnStar)
VIM -Vehicle Immobilizer Module
VIU -Vehicle Interface Unit (OnStar)
VTD -Vehicle Theft Deterrent
Abbreviations and Meanings
TERM in - followed by DEFINITION
Abbreviation Meaning
#
2WS- Two-Wheel Steer
3GR- Third Gear
4GR- Fourth Gear
4WAL- Four Wheel Anti-Lock
4WD- Four Wheel Drive
4WS- Four Wheel Steer
A
A-Ampere(s)
AAT- Ambient Air Temperature
ABS-Antilock Brake System
A/C-Air Conditioning
AC-Alternating Current
accel- Acceleration
accum- Accumulator
ACC- Adaptive Cruise Control
ACC-Accessory, Automatic Climate Control
Accy- Accessory
ACL-Air Cleaner
ACM- Air Conditioning Module
ACR4-Air Conditioning Refrigerant, Recovery, Recycling, Recharging
act- Actual
actv- Activate
AD-Automatic Disconnect
A/D-Analog to Digital
ADL-Automatic Door Lock
AD- Accommodated Device
adapt- Adaptive
adapts- Adaptors(ers)
ADG- Accommodated Device Gateway
adj- Adjust
ADL- Automatic Door Lock
ADS- Auxiliary Discriminating Sensor
A/F-Air/Fuel Ratio
AFECM- Alternate Fuel Engine Control Module
AFO- Alternate Fuel Operation
aft- After
AH-Active Handling
AHLD- Automatic Headlamp Leveling Device
ahrs- Amp Hours
AIR-Secondary Air Injection
ALC-Automatic Level Control, Automatic Lamp Control
AIR- Secondary Air Injection
ALC- Automatic Lamp Control, Automatic Level Control
ALDL- Assembly Line Diagnostic Link
ALM- Automatic Level Control, Adaptive Learn Matrix
Alt- Alternative
AM- Amplitude Modulation
AM/FM-Amplitude Modulation/Frequency Modulation
amp- Amplifier
amps- Amperages
Ant-Antenna
AP-Accelerator Pedal
APCM-Accessory Power Control Module
API-American Petroleum Institute
APP-Accelerator Pedal Position
Appl- Application
APT-Adjustable Part Throttle
ARS- Adaptive Receptive System
asm- Assembly
ASM- Alarm Siren Module
ASM-Assembly, Accelerator and Servo Control Module
ASR-Acceleration Slip Regulation
A/T-Automatic Transmission/Transaxle
ATC-Automatic Transfer Case, Automatic Temperature Control
ATDC-After Top Dead Center
ATF- Automatic Transmission Fluid
ATSLC-Automatic Transmission Shift Lock Control
Auto-Automatic
Aux- Auxiliary
avg-Average
A4WD-Automatic Four-Wheel Drive
AWD- All-Wheel Drive
AWG-American Wire Gage
B
B+-Battery Positive Voltage
BARO-Barometric Pressure
BAS- Brake Apply Sensor
BATT-Battery
BBV--Brake Booster Vacuum
BCA-Bias Control Assembly
BCM-Body Control Module
BFC- Body Function Controller
BHP-Brake Horsepower
BLK-Black
blts- Belts
BLW- Brake Lining Wear
BLU-Blue
Bn- Bank
BP-Back Pressure
BPCM-Battery Pack Control Module
BPMV-Brake Pressure Modulator Valve
BPP-Brake Pedal Position
BRN-Brown
(BTCM) Brake Torque Control Module
BTDC-Before Top Dead Center
BTM-Battery Thermal Module
BTSI-Brake Transmission Shift Interlock
Btu-British Thermal Units
C
°C-Degrees Celsius
CAC-Charge Air Cooler
CAFE-Corporate Average Fuel Economy
Cal-Calibration
calc- Calculated
Cam-Camshaft
CAN- Controller Area Network
CARB-California Air Resources Board
CASE- Crankshaft Angle Sensor Error
cass- Cassette
CC-Coast Clutch
CC- Climate Control
cm³-Cubic Centimeters
CCM-Convenience Charge Module, Chassis Control Module
CCOT-Cycling Clutch Orifice Tube
CCP-Climate Control Panel
CCW- Counter Clockwise
CD-Compact Disc
CDX- Compact Disc Changer
CE-Commutator End
CEAB-Cold Engine Air Bleed
CEMF-Counter Electromotive Force
CEX-Cabin Exchanger
cfm-Cubic Feet per Minute
cg-Center of Gravity
CID-Cubic Inch Displacement
CKP-Crankshaft Position
CKT-Circuit
C/Ltr-Cigar Lighter
CL-Closed Loop
CLS-Coolant Level Switch
cm- Centimeter
cmd- Command
CMC-Compressor Motor Controller
cmmd- Commanded
CMP-Camshaft Position
CNG-Compressed Natural Gas
CO-Carbon Monoxide
CO2-Carbon Dioxide
Coax-Coaxial
COMM-Communication
compl- Complete(d)
cond- Condition
config- Configuration
Conn-Connector
const- Constant
COP- Computer Operating Properly
CPA-Connector Position Assurance
CPP-Clutch Pedal Position
CPS-Central Power Supply
CPU-Central Processing Unit
CRT-Cathode Ray Tube
CRTC-Cathode Ray Tube Controller
CS-Charging System
CSFI-Central Sequential Fuel Injection
CTD- Content Theft Deterrent
CTP-Closed Throttle Position
CTP- Closed Throttle Position
ctrl- Control
ctsy- Courtesy
cu ft-Cubic Foot/Feet
cu in-Cubic Inch/Inches
CV-Constant Velocity Joint
CVRSS-Continuously Variable Road Sensing Suspension
Cyl-Cylinder(s)
D
D- Drive
DAB-Delayed Accessory Bus
dB-Decibels
dBA=Decibels on A-weighted Scale
dBm- Decibel Meter
DC-Direct Current, Duty Cycle
DCM-Door Control Module
DDM- Driver Door Module
DDS- Driver Door Switch
DE-Drive End
DEC-Digital Electronic Controller
dec- Decrement
Decal- Decelerate
def- Defrost
defog- Defogger
deg- Degrees
deg C- Degrees Celsius
del- Delivered
DERM-Diagnostic Energy Reserve Module
DERM- Diagnostic Energy Reserve Module
des- Desired
DFCO- Decel Fuel Cut-Off
DI-Distributor Ignition
dia-Diameter
Diag- Diagnostic
DIC-Driver Information Center
Diff-Differential
dig- Digit
DIM-Dash Integration Module
dis- Disable
disc- Disconnect
discrim- Discriminate
disp- Display
DK-Dark
DLC-Data Link Connector
DMCM-Drive Motor Control Module
DMM-Digital Multi-meter
DMSDS-Drive Motor Speed and Direction Sensor
DMU-Drive Motor Unit
DNR- Dolby Noise Reduction
DOHC-Dual Overhead Camshafts
Dol- Dolby
Dr- Door
DR, Drvr-Driver
DRL-Daytime Running Lamps
DRP- Dynamic Rear Proportioning
DRR- Digital Radio Receiver
drvr- Driver
DSM- Driver Seat Module
DSP- Digital Signal Process
DTC-Diagnostic Trouble Code
DVD- Digital Video disc
Dwn Down
E
EBCM-Electronic Brake Control Module
EBM- Electronic Brake Module
EBTCM-Electronic Brake and Traction Control Module
E&C-Entertainment and Comfort
EC-Electrical Center, Engine Control
EC- Engine Control
ECC-Electronic Climate Control
ECI-Extended Compressor at Idle
ECL-Engine Coolant Level
ECM-Engine Control Module, Electronic Control Module
Econ- Economy
ECS-Emission Control System
ECT-Engine Coolant Temperature
ECU- Electronic Control Unit
EEPROM-Electrically Erasable Programmable Read Only Memory
EEVIR-Evaporator Equalized Values in Receiver
EFE-Early Fuel Evaporation
EGR-Exhaust Gas Recirculation
EGR TVV-Exhaust Gas Recirculation Thermal Vacuum Valve
EHCU- Electric Hydraulic Control Unit
EHPS-Electro-Hydraulic Power Steering
EI-Electronic Ignition
ELAP-Elapsed
ELC-Electronic Level Control
elec- Electric
E/M-English/Metric
EMB- Electromagnetic Brake
EMF-Electromotive Force
EMI-Electromagnetic Interference
enab- Enabled
Eng-Engine
EOP-Engine Oil Pressure
EOT-Engine Oil Temperature
EPA-Environmental Protection Agency
EPR-Exhaust Pressure Regulator
EPS- Electric Power Steering
EPROM-Erasable Programmable Read Only Memory
EQ- Equalizer
ERH- Extended Ride Height
ESB-Expansion Spring Brake
ESC-Electronic Suspension Control
ESD-Electrostatic Discharge
ESM- Electronic Steering Module
ESN-Electronic Serial Number
EST- Electronic Spark Timing
ESO- Engine Shutoff
Est- Estimated
ETC-Electronic Throttle Control
ETC-Electronic Temperature Control
ETC-Electronic Timing Control
ETCC-Electronic Touch Climate Control
ETR-Electronically Tuned Receiver
ETS-Enhanced Traction System
EV- Electric Vehicle
EVAP-Evaporative Emission
evap- Evaporator
EVO-Electronic Variable Orifice
ext- Extended
Extr- Exterior
Exh-Exhaust
F
°F-Degrees Fahrenheit
F4WD- Full-Time Four-Wheel Drive
FC-Fan Control
fdbk- Feedback
FDC-Fuel Data Center
FED-Federal All United States except California
FEDS-Fuel Enable Data Stream
FEIC- Fuel Economy Integrated Counter
FET- Field Effect Transistor
FEX-Front Exchanger
FF-Flexible Fuel
FFH-Fuel-Fired Heater
FI-Fuel Injection
FICM- Fuel Injector Control Module
filt- Filter
FL- Front Left
flr-Floor
FM- Frequency Modulation
FMVSS-Federal U.S. Motor Vehicle Safety Standards
FP-Fuel Pump
FP- Fuel Pump
FPR- Fuel Pump Regulator
FR- Front Right
freq- Frequency
frnt- Front
FRP- Fuel Rail Pressure
ft-Foot/Feet
FT-Fuel Trim
FTP- Fuel Tank Pressure
F4WD-Full Time Four-Wheel Drive
4WAL-Four-Wheel Antilock
4WD-Four-Wheel Drive
FW-Flat Wire
FWD-Front Wheel Drive, Forward
G
g/cyl- Grams per cylinder
g-Grams, Gravitational Acceleration
GA-Gage, Gauge
gal-Gallon
gas-Gasoline
GCW-Gross Combination Weight
Gen-Generator
GL-Gear Lubricant
GM-General Motors
GM SPO-General Motors Service Parts Operations
gnd-Ground
gpm-Gallons per Minute
GPS- Global Positioning System
GRN-Green
GRY-Gray
GS- Garage Shift
GVWR-Gross Vehicle Weight Rating
H
H-Hydrogen
H2O-Water
Harn-Harness
HC-Hydrocarbons
HCM- Heating Control Module
H/CMPR-High Compression
HD-Heavy Duty
HDC-Heavy Duty Cooling
hex-Hexagon, Hexadecimal
Hg-Mercury
HI- High
Hi Alt-High Altitude
HID- High Intensity Discharge
hist- History
HO2-SHeated Oxygen Sensor
horiz- Horizontal
hp-Horsepower
HPL-High Pressure Liquid
HPS-High Performance System
HPV-High Pressure Vapor
HPVS-Heat Pump Ventilation System
hr- Hour
hrs- Hours
HTCM- HVAC Thermal Control Module
Htd-Heated
HTR-Heater
HUD-Head-up Display
HVAC-Heater-Ventilation-Air Conditioning
HVACM-Heater-Vent-Air Conditioning Module
HVIL-High Voltage Interlock Loop
HVM-Heater Vent Module
H/W- Hardware
HW- Heated Windshield
Hz-Hertz
I
IA- Intake Air
IAC-Idle Air Control
IAT-Intake Air Temperature
IC-Integrated Circuit, Ignition Control
ICCS-Integrated Chassis Control System
ICDX- Integrated Compact Disc Changer
ICM-Ignition Control Module
ICS- Integrated Chassis System
ID-Identification, Inside Diameter
IDI-Integrated Direct Ignition
IGBT-Insulated Gate Bi-Polar Transistor
ign-Ignition
ILC-Idle Load Compensator
I/M- Inspection and Maintenance
IMDX- Integrated Mini Disc Changer
immo- Immobilizer
IMRC- Intake Manifold Runner Control
IMT- Intake Manifold Tuning
In- Inches
inadv- Inadvertent
inc- Increment
incand- Incandescent
infl- Inflatable
info- Information
init- Initial
in-Inch/Inches
INJ-Injection
inst-Instantaneous, Instant
int- Interior
I/O- In/Out
I/P- Instrument Panel
IP-Instrument Panel
IPC-Instrument Panel Cluster
IPM-Instrument Panel Module
I/PEC-Instrument Panel Electrical Center
IRQ)-Interrupt Request
ISC-Idle Speed Control
iso- Isolation
ISO-International Standards Organization
ISS-Input Speed Shaft, Input Shaft Speed
K
KAM-Keep Alive Memory
KDD-Keyboard Display Driver
kg-Kilogram
kg/h- Kilograms per hour
kHz-Kilohertz
km-Kilometer
km/h-Kilometers per Hour
km/l-Kilometers per Liter
kPa-Kilopascals
KS-Knock Sensor
kV-Kilovolts
L
L-Liter
L4F-our Cylinder Engine, In-Line
L6-Six-Cylinder Engine, In-Line
lb-Pound
lb ft-Pound Feet Torque
lb in-Pound Inch Torque
LCD-Liquid Crystal Display
LCM- Lighting Control Module
LDCL-Left Door Closed Locking
LDCM-Left Door Control Module
LDM-Lamp Driver Module
l duty- Light Duty
LED-Light Emitting Diode
LEV-Low Emissions Vehicle
LF-Left Front
LFWS- Left Front Wheel Speed
LGM- Lift Gate Module
LH- Left Hand
LMD- Left Mid Door
lm-Lumens
LO- Low
LPG- Liquefied Petroleum Gas
LPS- Low Pressure Sensor
L/R- Left Rear
LR-Left Rear
LT-Left
LT-Light
LT-Long Term
LTPI-Low Tire Pressure Indicator
LTPWS-Low Tire Pressure Warning System
lvl- Level
M
MAF-Mass Air Flow
malf- Malfunction
MALL- Multifunction Alarm Lighting and Locking
man- Manufacturer
Man-Manual
MAP-Manifold Absolute Pressure
MAT-Manifold Absolute Temperature
max-Maximum
M/C-Mixture Control
MCU- Microprocessor Control unit
MD- Mini Disc
MDP-Manifold Differential Pressure
MDX- Mini Disc Changer
med- Medium
mem- Memory
MFI-Multiport Fuel Injection
mi-Miles
mid- Midrange
MIL-Malfunction Indicator Lamp
min-Minimum
MIN-Mobile Identification Number
mL-Milliliter
mm-Millimeter
mm3- Cubic Millimeters
mmhg- Millimeters of mercury
MMM- Memory Mirror Module
mod- Module
mon- Monitor
mpg-Miles per Gallon
mph-Miles per Hour
ms-Millisecond
MSM- Memory Seat Module
MST-Manifold Surface Temperature
MSVA-Magnetic Steering Variable Assist, Magnasteer®
M/T-Manual Transmission/Transaxle
mtr- Motor
mult- Multiple
mux- Multiplex
MV-Megavolt
mV-Millivolt
N
N- Neutral
NAES-North American Export Sales
nav- Navigation
NC-Normally Closed
NDH- Navigation Display Head
NEG-Negative
Neu-Neutral
NGO- Natural Gas Operation
NI-Neutral Idle
NiMH-Nickel Metal Hydride
NLGI-National Lubricating Grease Institute
Nm-Newton-meter Torque
NO-Normally Open
NOx-Oxides of Nitrogen
NPTC-National Pipe Thread Coarse
NPTF-National Pipe Thread Fine
NOVRAM-Non-Volatile Random Access Memory
NR- Noise Reduction
NSBU- Neutral Safety Back Up
NV- Night Vision
NVRAM- Non-Volatile Random Access Memory
O
O2-Oxygen
O2S-Oxygen Sensor
OAT- Outside Air Temperature
OBD-On-Board Diagnostics
OBD II-On-Board Diagnostics Second Generation
OBPA- Off-Board Programming Adaptor
OC-Oxidation Converter Catalytic
OCS-Opportunity Charge Station
OD-Outside Diameter
ODM-Output Drive Module
ODO-OdometerOEOriginal Equipment
OEM-Original Equipment Manufacturer
OHC-Overhead Camshaft
ohms-Ohm
OL-Open Loop, Out of Limits
ORC-Oxidation Reduction Converter Catalytic
orig- Original
ORN-Orange
ORVR-On-Board Refueling Vapor Recovery
OSC- Oxygen Storage Capacity
Overtemp- Over temperature
OSS-Output Shaft Speed
Oz-Ounce(s)
P
P- Park
PAG-Polyalkylene Glycol
PAIR-Pulsed Secondary Air Injection
parms- Parameters
PC- Pressure Control (solenoid valve),
PASS, PSGR-Passenger
PASS-Key®-Personalized Automotive Security System
P/B-Power Brakes
PC-Pressure Control
PCB-Printed Circuit Board
PCM-Powertrain Control Module
PCMCIA- Personal Computer Memory Card Industry Association
PCS-Pressure Control Solenoid
PCV-Positive Crankcase Ventilation
PDIF- Pressure Differential
PDM- Passenger Door Module
PDS- Passenger Door Switch
PEB-Power Electronics Bay
perf- Performance
phn- Phone
PID-Parameter Identification
PIM-Power Inverter Module
PIN- Personal Identification Number
PLL- Phase Locked Loop
PM-Permanent Magnet Generator
PMV- Pressure Modulator Valve
P/N-Part Number
PNK-Pink
PNP-Park/Neutral Position
pm-Parts per Million
POA-Pilot Operated Absolute Valve
POS-Positive, Position
POT-Potentiometer Variable Resistor
PPL-Purple
PPS- Passenger Presence Setting
press- Pressure
preten- Pretensioner
prev- Previous
prim- Primary
PRNDL-Park, Reverse, Neutral, Drive, Low
Prog- Program
PROM-Programmable Read Only Memory
P/S- Power Steering
PS-Power Steering
PSCM-Power Steering Control Module, Passenger Seat Control Module
PSD-Power Sliding Door
psgr- Passenger
PSP-Power Steering Pressure
psi-Pounds per Square Inch
psia-Pounds per Square Inch Absolute
psig-Pounds per Square Inch Gauge
PSIR- Passenger Supplemental Inflatable Restraint
PSM- Passenger Seat Module
PSP- Power Steering Pressure
pt-Pint
PTC-Positive Temperature Coefficient
PTO- Power Take Off
PWM-Pulse Width Modulated
pwr- Power
PZM- Platform Zone Module
Q
QDM-Quad Driver Module
Qt-Quart(s)
R
R- Reverse
R-12-Refrigerant-12
R-134a-Refrigerant-134a
R/A- Resume or Accelerate
RAC- Remote Accessory Controller
RAM- Random Access Memory
ran- Random
RAM-Random Access Memory, Non-permanent memory device, memory contents are lost when power is removed.
RAP-Retained Accessory Power
RAV-Remote Activation Verification
RCC- Rear Climate Control
RCDLR-Remote Control Door Lock Receiver
RDCM-Right Door Control Module
RDS- Radio Display System
rec- Receive
recal- Recalibrate, Recalibration
recap- Receptacle
Recirc- Recirculation
recl- Recline
Ref-Reference
Rev-Reverse
ref- Reference
refrig- Refrigeration
regen- Regenerate
req- Request
resist- Resistance
resync- Resynchronize
rev- Reverse
REX-Rear Exchanger
RF-Right Front, Radio Frequency
RFA-Remote Function Actuation
RFI-Radio Frequency Interference
RFWS- Right Front Wheel Speed
RH-Right Hand
RIM-Rear Integration Module
RKE-Remote Keyless Entry
Rly-Relay
RMD- Right Mid Door
ROM-Read Only Memory, Permanent memory device, memory contents are retained when power is removed.
RPA- Rear Parking Assist
RPM-Revolutions per Minute Engine Speed
RPO-Regular Production Option
RR-Right Rear
RRD- Right Rear Door
RSA- Rear Seat Audio
RSS-Road Sensing Suspension
RTC- Real-Time Clock
RTD-Real Time Damping
RT-Right
RTT- Reconfigurable Telltale
RTV-Room Temperature Vulcanizing Sealer
RWAL-Rear Wheel Antilock
RWD-Rear Wheel Drive
RWS- Rear-Wheel Steer
RVAC- Rear Video/Audi/HVAC Module
S
s-Second(s)
SAE-Society of Automotive Engineers
SBM- Standard Body Module
SC-Supercharger
SCB-Supercharger Bypass
SCM-Seat Control Module
SCV- Speed Controlled Volume
SDL- Serial Data Link
SDM-Sensing and Diagnostic Module
sec- Second(s)
sen- Sensor
SEO-Special Equipment Option
seq- Sequence
ser- Serial
SFI-Sequential Multiport Fuel Injection
SI-System International Modern Version of Metric System
SIAB-Side Impact Air Bag
sig- Signal
SIR-Supplemental Inflatable Restraint
SIS- Side Impact Sensor
SLA-Short/Long Arm Suspension
SMCC- Stepper Motor Cruise Control
SOD- Side Object Detection
SOH- State of Health
sol-Solenoid
SO2-Sulfur Dioxide
SP-Splice Pack
S/P-Series/Parallel
spd- Speed
speedo- Speedometer
(SPI) Serial Peripheral Interface
SPO-Service Parts Operations
SPS-Service Programming System
sq ft, ft²-Square Foot/Feet
sq in, in²-Square Inch/Inches
SRC-Service Ride Control
SRI-Service Reminder Indicator
SRS-Supplemental Restraint System
SS- Speed signal
SS-Shift Solenoid
SSS- Speed Sensitive Steering
SSV- Shift Solenoid Valve
ST-Scan Tool
stdby- Standby
STID-Station Identification Station ID
STL- Service Transmission Lamp
SUV- Sport Utility Vehicle
SVS- Service Vehicle soon
S/W- Software
S4WD-Selectable Four-Wheel Drive
Sw-Switch
SWC- Steering Wheel Controls
SWPS-Steering Wheel Position Sensor
SXR- Serial Transmit and Receive
sync- Synchronize
sys- System
T
TA- Traffic Announcement
TAC-Throttle Actuator Control
Tach-Tachometer
TAP-Transmission Adaptive Pressure, Throttle Adaptive Pressure
TAS- Trap Alert System
TAV- Transmission Adaptive Volume
TBC- Truck Body Controller
TBI- Throttle Body Injection
TBI-Throttle Body Fuel Injection
TC-Turbocharger, Transmission Control
TCC-Torque Converter Clutch
TCM- Transmission Control Module
TCS-Traction Control System
TDC-Top Dead Center
tele- Telescope
TEMP-Temperature
Term-Terminal
TFP-Transmission Fluid Pressure
TFT-Transmission Fluid Temperature
THM-Turbo Hydro-Matic
TIM-Tire Inflation Monitoring, Tire Inflation Module
TIS- Techline Information System
TOC-Transmission Oil Cooler
torq- Torque
TP-Throttle Position
TPA-Terminal Positive Assurance
TPM-Tire Pressure Monitoring, Tire Pressure Monitor
TR-Transmission Range
TRANS-Transmission/Transaxle
trac- Traction
(trans) Transmission
trk- Truck
TSS- Turbine Shaft Speed
TT-Tell Tail Warning Lamp
TTM- Tilt and Telescope Module
TV- Television
TV-Throttle Valve
TVAM) Television Antenna Module
TVRS-Television and Radio Suppression
TVV-Thermal Vacuum Valve
TWC-Three Way Converter Catalytic
TWC+OC-Three Way + Oxidation Converter Catalytic
TXV-Thermal Expansion Valve
twtr- Tweeter
U
UART-Universal Asynchronous Receiver Transmitter
U/H-Under hood
U/HEC-Under hood Electrical Center
U-joint-Universal Joint
unlk- Unlock
UTD-Universal Theft Deterrent
UV-Ultraviolet
V
V-Volt(s), Voltage
V6-Six-Cylinder Engine, V-Type
V8-Eight-Cylinder Engine, V-Type
Vac-Vacuum
VAC-Vehicle Access Code
VATS-Vehicle Anti-Theft System
VCIM-Vehicle Communication Interface Module
VCM-Vehicle Control Module
V dif-Voltage Difference
VDOT-Variable Displacement Orifice Tube
VDR- Vehicle Dealer Recorder
VDV-Vacuum Delay Valve
veh- Vehicle
vel-Velocity
ver- Version
vert- Vertical
VES-Variable Effort Steering
VF-Vacuum Fluorescent
VIN-Vehicle Identification Number
VIO-Violet
VIU- Vehicle interface Unit
VLR-Voltage Loop Reserve
VMV-Vacuum Modulator Valve
VR-Voltage Regulator
V ref-Voltage Reference
VSES-Vehicle Stability Enhancement System
vspd- Vehicle speed
VSS-Vehicle Speed Sensor
VSV) Vacuum Solenoid Valve
VTD- Vehicle Theft Deterrent
W
w/-With
warn- Warning
W/B-Wheel Base
WHL-Wheel
WHT-White
w/o-Without
WOT-Wide Open Throttle
W/P-Water Pump
W/S-Windshield
WSS-Wheel Speed Sensor
WU-OC-Warm Up Oxidation Converter Catalytic
WU-TWC-Warm Up Three-Way Converter Catalytic
X
X valve-Expansion Valve
Y
yd-Yard(s)
YEL-Yellow