SAE J1930 Component Acronyms

Acronym or
Abbreviation Explanation

A/C Air Conditioning
ABS Antilock Brake System
ACC A/C Compressor Clutch
ACM Airbag Control Module
ASD Automatic Shutdown (Relay)
ATX Automatic Transaxle
AWD All Wheel Drive
BPEGR Backpressure Exhaust Gas Recirculation
B+ Battery Voltage
CCD Bus Chrysler Collision Detection Serial Data Bus
CKP Crankshaft Position (Sensor)
CKT Circuit
CMP Camshaft Position (Sensor)
CTRL Control
DIS Direct Ignition System
DRB II Diagnostic Readout Box II (Chrysler Scan Tool)
DTC Diagnostic Trouble Code
EATX Electronic Automatic Transaxle
ECT Engine Coolant Temperature
EEPROM Electronically Eraseable Read Only Memory
EET Electronic EGR Transducer
EGR Exhaust Gas Recirculation
EI Electronic Ignition (DIS)
EMCC Electronically Modulated Converter Clutch
ETBE Ethyl Tertiary Butyl Ether
EVAP Evaporative Emission Control System
FF Flexible Fuel
FLEX Flexible Fuel (Mixture Of Gasoline Methanol)
FR Fuel Filler Tube Restrictor
FWD Front Wheel Drive
GEN Generator (Previously Called Alternator)
HMSL High Mounted Stop Lamp
HO2S Heated Oxygen Sensor
IAC Idle Air Control
IOD Ignition OFF Draw
LED Light Emitting Diode
M Manifold Vacuum
MAP Manifold Absolute Pressure
MIL Malfunction Indicator Lamp (Check Engine)
MTBE Methyl Tertiary Butyl Ether
O2S Heated Oxygen Sensor
OBD On Board Diagnostics
OBDI On Board Diagnostic
OC Oxidation Catalyst
ORD Overdrive Running Clutch
P Ported Vacuum
PAIR Pulse Air Injection System
PCM Powertrain Control Module
[1][2]PCV Positive Crankcase Ventilation
PDC Power Distribution Center
PIWWC Pulse Intermittent Windshield Wiper Control
PRNDL Park, Reverse, Neutral, Drive, Low (Switch), (pronounced "prindle")
PSBM Passive Seat Belt Module
S/C Speed Control
SFI Sequential Fuel Injection
SPK Ignition Spark Controls
SRI Service Reminder Indicator
SRS Supplemental Restraint System (Air Bag)
STI Self Test Input, (Data Link Connector)
T Throttle Body Vacuum
TAC Thermostatic Air Cleaner
TBI Throttle Body Injection
TCC Torque Converter Clutch
TCM Transaxle Control Module
TPS Throttle Position Sensor
TWC 3-way Catalytic Converter
VSS Vehicle Speed Sensor
WOT Wide Open Throttle
VAC Vacuum
VECI Vehicle Emission Control Information (VECI) Label

NOTE: If this information differs from the Vehicle Emission Control Information label, under vehicle hood, follow VECI label.