so when you see something abbreviated and have no fucking clue
ABS- Anti-Lock Brakes
A/C - Air Conditioning
ACCS - A/C Cycling Switch
ACC - A/C Clutch Compressor
ACD - Air Conditioning Demand
A/C on - Air Conditioning ON circuit
ACP - Air Conditioning Pressure
ACT - Air Charge Temperature sensor
ACV- Thermactor Air Control Valve
A/C WOT - Air Conditioning WOT off relay
ADC - Analog to Digital Converter
ADJ - Adjust
A/D - Analog to Digital
A/F - Air to Fuel Ratio
AFR - Air to Fuel Ratio
AIR - Secondary Air Injection / Thermactor
AIRB - Secondary Air injection Bypass
AIRD - Secondary Air injection Diverter
ALDL - Assembly Line Diagnostic Link
ALT - Alternator
AM1 - Thermactor Air Bypass solenoid valve (TAB)
AM2 - Thermactor Air Diverter solenoid valve (TAD)
AOD - Automatic Overdrive transmission
AODE - Automatic Overdrive Electronic transmission
AODE-W - Automatic Overdrive Electronic Wide-ratio transmission
ARC - Automatic Ride Control
A/T - Automatic Transmission/Transaxle
ATDC - After Top Dead Center
AXOD - Automatic Transaxle Overdrive
AVOM - Analog Volt-Ohm Meter
B+ - Battery Positive Voltage
BATT+ - Battery Positive Voltage
BARO - Barometric Pressure
BDC - Bottom Dead Center
BLR - Blower
BOO - Brake On/Off switch
BP - Barometric Pressure sensor
BPA - Bypass Air
BTDC - Before Top Dead Center
CAC - Charge Air Cooler (intercooler)
CANP - Canister Purge solenoid
CBD - Closed Bowl Distributor
CCC - Converter Clutch Control
CCD - Computer Controlled Dwell
CCO - Converter Clutch Override
CCRM - Constant Control Relay Module
CCS - Coast Clutch Solenoid
CEL - Check Engine Light
CFI - Central Fuel Injection
CID - Cylinder Identification sensor
CKP - Crankshaft Position
CKT - Circuit
CM - Continues Memory
CMP - Camshaft Position
CO - Carbon Monoxide
CO2 - Carbon Dioxide
CPP - Clutch Pedal Position
CPS - Crankshaft Position Sensor
CSE GND - Case Ground
CTS - Coolant Temp Sensor
DAC - Digital to Analog Converter
DI - Distributor Ignition
DIS - Distributorless Ignition System
DLC - Data Link Connector
DOHC - Dual Overhead Cam
DOL - Data Output Line
DPFE - Delta Pressure Feedback EGR
DPDIS - Dual Plug Distributorless Ignition System
DPI - Dual Plug Inhibitor
DRW - Dual Rear Wheel Axle
DTC - Diagnostic Trouble Code
DTM - Diagnostic Test Mode
DVOM - Digital Volt/Ohm Meter
E4OD - Electronic 4-Speed Overdrive
EAIR - Electronic Secondary Air Injection
EAP - Electronic Air Pump
ECA - Electronic Control Assembly
EEC - Electronic Engine Control
EEC-IV - Ford’s fourth generation EEC system
E-fan - Electric Cooling Fan
ECM - Electronic Control Module
ECT - Engine Coolant Temperature sensor
ECU - Electronic Control Unit
EDF - Electric Drive Fan relay assembly
EDIS - Electronic Distributorless Ignition System
EED - Electronic Engine Control
EFI - Electronic Fuel Injection
EGO - Exhaust Gas Oxygen sensor
EGR - Exhaust Gas Recirculation system
EGRC - EGR Vacuum Control solenoid
EGRV - EGR Vent solenoid or system
EGT - Exhaust Gas Temperature
EI - Electronic Ignition
EPC - Electronic Pressure Control
EPT - EGR Pressure Transducer
ER - Engine Running
EVP - EGR Valve Position sensor
EVR - EGR Vacuum Regulator
EVTM - Electrical & Vacuum Trouble Shooting Manual
FC - Fan Control
FF - Flexible Fuel
FFS - Flexible Fuel Sensor
FFV - Flexible Fuel Vehicle
FI - Fuel Injector or Fuel Injection
FMEM - Failure Mode Effects Management
FMU - Fuel Management Unit
FP - Fuel Pump
FPDM - Fuel Pump Driver Module
FPM - Fuel Pump Monitor
FPR - Fuel Pressure Regulator
FRPS - Fuel Rail Pressure Sensor
FTO - Filtered Tach Output
FTP - Fuel Tank Pressure Sensor
Fuel pump primary circuit - relay control side (85-86)
Fuel pump secondary circuit - relay power side (30-87)
GCM - Governor Control Module
GEN - Generator / Alternator
GND - Ground
GRND - Ground
GVW - Gross Vehicle Weight
HC - Hydrocarbon
HEDF - High Speed Electro Drive Fan
HEGO - Heated EGO sensor
HEGO G - HEGO Ground circuit
HFC - High Fan Control
HFP - High Fuel Pump
HLOS - Hardware Limited Operating Strategy
HSIA - High Speed Inlet Air
HO - High Output
HO2S - Heated Oxygen sensor
HO2S 11 - Right Front O2 sensor
HO2S 21 - Left Front O2 sensor
HO2S 12 - Right Rear O2 sensor
HO2S 22 - Left Rear O2 sensor
HSC - High Swirl Combustion
IAB - Idle Air Bypass
IAC - Intake Air Control
IAC - Idle Air Control
IAS - Idle Air Solenoid
IAT - Intake Air Temp
ICM - Ignition Control Module
IDM - Ignition Diagnostic Monitor
IFS - Inertia Fuel Shutoff Switch
IGN - Ignition system or circuit
IGN GND - Ignition Ground
IMRC - Intake Manifold Runner Control
INJ - Injector or Injection
IS - Inertia Switch (fuel cutoff)
ISC - Idle Speed Control
ITS - Idle Tracking Switch
KAM - Keep Alive Memory
KAPWR - Keep Alive Power
KOEO - Key On Engine Off
KOER - Key On Engine Running
KS - Knock Sensor
L - Liter(s)
LFC - Low Fan Control
LFP - Low Fuel Pump
LOS - Limited Operation Strategy
LUS - Lock-Up Solenoid
MAF - Mass Air Flow sensor, meter or circuit
MAF RTN - Mass Air Flow Return
MAP - Manifold Absolute Pressure
MA PFI - Mass Air Sequential Port Fuel Injection system
MAPPA - Manifold Absolute Pressure Per Altitude
MAT - Manifold Air Temp sensor
MCU - Microprocessor Control Unit
MECS - Mazda Engine Control System
MFI - Multiport Fuel Injection
MIL - Malfunction Indicator Light
MLP - Manual Lever Position
MLPS - Manual Lever Position Sensor
MLUS - Modulated Lock-Up Solenoid
MPFI - Multi Port Fuel Injection
NC - Normally Closed
NDS - Neutral Drive Switch
NGS - Neutral Gear Switch
NPS - Neutral Pressure Switch
NO - Normally Open
N2O - Nitrous Oxide
NOx - Nitrogen Oxides
NOS - Nitrous Oxide
O2S - Oxygen Sensor
OBD - On Board Diagnostics
OCC - Output Circuit Check
OCT - Octane
OCT ADJ - Octane Adjust
OHC - Over Head Camshaft (engine type)
OSC - Output State Check
PA - Pulsed Air Injection
PAIR - Pulsed Secondary Air Injection
PATS - Passive anti-theft system
PCM - Powertrain Control Module
PCV - Positive Crankcase Ventilation
PFE - Pressure Feedback EGR sensor or circuit
PFI - Port Fuel Injection
PIP - Profile Ignition Pickup
PLCC - Plastic Leadless Chip Carrier
PNP - Park / Neutral Position
PSP - Power Steering Pressure
PSPS - Power Steering Pressure Switch
PSOM - Programmable Speedometer/Odometer Module
PW - Pulse Width
PWM - Pulse Width Modulated
PWR - Power
PWR GND - Power Ground circuit
RABS - Rear Antilock Brake System
RM - Relay Module
RPM - Revolutions Per Minute
RTN - Return
RWD - Rear Wheel Drive
SAW - Spark Angle Word
SBC - Small Block Chevy
SC - Super Charged (engine type)
SD - Speed-Density
SEFI - Sequential Electronic Fuel Injection
SFI - Sequential Fuel Injection
SIG - Signal
SIG RTN - Signal Return circuit
SIL - Shift Indicator Light
SHO - Super High Output
SPFI - Sequential Port Fuel Injection
SPOUT - Spark Output Signal from EEC
SRW - Single Rear Wheel Axle
SS - Shift Solenoid circuit
STAR - Self Test Automatic Readout (test equipment)
ST - Scan Tool
ST - Self Test
STI - Self Test Input circuit
STO - Self Test Output circuit
TACH - Tachometer
TAB - Thermactor Air Bypass solenoid valve (AM1)
TAD - Thermactor Air Diverter solenoid valve (AM2)
TB - Throttle Body
TBI - Throttle Body Injection
TC - Turbocharger
TCC - Torque Converter Clutch
TCIL - Transmission Control Indicator Lamp
TCM - Transmission Control Module
TCS - Transmission Control Switch
TDC - Top Dead Center
TFI - Thick Film Ignition system
TFT - Transmission Fluid Temperature
TGS - Top Gear Switch
THS - Transmission Hydraulic Switch
TOT - Transmission Oil Temperature
TP - Throttle Position Sensor
TPI - Tuned Port Intake
TPOUT - Throttle Position Output
TPS - Throttle Position Sensor
TRD - Transmission Range Drive
TROD - Transmission Range Overdrive
TRL - Transmission Range Low
TRR - Transmission Range Reverse
TSS - Transmission Speed Sensor
TTB - Twin Traction Beam
TTS - Transmission Temperature Switch
VAF - Vane Air Flow sensor or circuit
VAF - Volume Air Flow
VAT - Vane Air Temperature
VBATT - Vehicle Battery Voltage
VCRM - Variable Control Relay Module
VECI - Vehicle Emission Control Information Label
VM - Vane Meter
VOM - Analog Volt/Ohm Meter
VCRM - Variable Control Relay Module
VPWR -Vehicle Power supply voltage (regulated 10-14 volts)
VR - Variable Reluctance
VREF - Voltage Reference (EEC supplied voltage = 5 volts)
VRS - Variable Reluctance Sensor
VSC - Vehicle Speed Control sensor or signal
VSS - Vehicle Speed Sensor or signal
WAC - WOT A/C Cut-off switch or circuit
WOT - Wide Open Throttle
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