SAE J1930 Component Acronyms

SAE J1930 terms were not selected on the basis of what component names were the ones commonly used by most auto manufacturers. Instead, the SAE used a logical method for describing components in which modifiers are added to a base word in order of decreasing significance. For example: Idle Air Control Valve. The base word is "valve." What kind of valve is it? A "control" valve. What does it control? "Air." What kind of air? "Idle" air.

BARO Barometric Pressure Sensor
BOO Brake On/Off Switch
BPA Bypass Air
CANP Carbon Canister Storage / Purging
CONV Conventional Systems
CKP Crankshaft Position Sensor
CPP Clutch Pedal Position Switch
CVS Control / Vent Solenoids
DI Distributor Ignition
DI TFI-IV Distributor Ignition (TFI-IV)
DLC Data Link Connector
DMIVA Distributor Mounted Ignition Vacuum Advance
DRL Daytime Running Lamp Relay (Canada Only)
ECT Engine Coolant Temperature Sensor
EGR Exhaust Gas Recirculation
EGRC EGR Control Solenoid
EGRM Exhaust Gas Recirculation Modulator Valve
EGRT EGR Temperature Sensor
EGRV EGR Vent Solenoid
EVAP Evaporative Emission System
EVP EGR Valve Position Sensor
EVR EGR Vacuum Regulator Solenoid
GND Ground
HO2S Heated Oxygen Sensor
HSIA High Speed Inlet Air
IAC Idle Air Control
IDL Idle Switch
IMRC Intake Manifold Runner Control
KAPWR Keep Alive Power
KS Knock Sensor
MAF Mass Air Flow Sensor
MC-VAF Measuring Core - Volume Air Flow Sensor
MFI Multiport Fuel Injection
MIL Malfunction Indicator Lamp
O2S Oxygen Sensor
PCM Powertrain Control Module
PCV Positive Crankcase Ventilation
PNPS Park/Neutral Position Switch
PSP Power Steering Pressure Switch
SFI Sequential Multiport Fuel Injection
SPOUT Spark Output
STI Self Test Input
STO Self Test Output
TI3 Transistorized Ignition 3-Pin
TP Throttle Position Sensor
TWC Three-Way Catalytic Converter
VPWR Vehicle Power
VREF Reference Voltage
VRIS Variable Resonance Induction System
VSS Vehicle Speed Sensor
WOT Wide Open Throttle Switch