Glossary of Acronyms
ABS Antilock Brake SystemACM Airbag Control Module
AECM Airbag Electronic Control Module (ACM)
ASDM Airbag System Diagnostic Module (ACM)
Backfire, Popback Fuel ignites in either the intake or the exhaust system
BUX Built-Up Export
CAB Controller Antilock Brake
CKP Crankshaft Position Sensor
CMP Camshaft Position Sensor
CTM Compass/Temperature Mirror
Cuts Out, Misses A Steady pulsation or the inability of the engine to maintain a consistent rpm
DAB Driver Airbag
DLC Data Link Connector
DTC Diagnostic Trouble Code
DLC Data Link Connector (previously called engine diagnostic connector)
Detonation, Spark Knock A mild to severe ping, especially under loaded engine conditions
ECT Engine Coolant Temperature Sensor
EGR Exhaust Gas Recirculation Valve And System
EMIC Electro/Mechanical Instrument Cluster
Generator Previously Called Alternator
Hard Start The engine takes longer than usual to start, even though it is able to crank normally.
Hesitation, Sag, Stumble There is a momentary lack of response when the throttle is opened. This can occur at all vehicle speeds. If it is severe enough, the engine may stall.
IAC Idle Air Control Motor
IAT Intake/Inlet Air Temperature Sensor
JTEC Combined Engine And Transmission Control Module
LSIACM Left SIACM
Lack of Power, Sluggish The engine has less than expected power, with little or no increase in vehicle speed when the throttle is opened.
LDP Leak Detection Pump
MAP Manifold Absolute Pressure Sensor
MIL Malfunction Indicator Lamp
MTV Manifold Tuning Valve
O2S Oxygen Sensor
PAB Passenger Airbag
PCI Programmable Communication Interface (vehicle communication bus)
PCM Powertrain Control Module
PDC Power Distribution Center
PCV Positive Crankcase Ventilation
PEP Peripheral Expansion Port
Poor Fuel Economy There is significantly less fuel mileage than other vehicles of the same design ad configuration
PWM Pulse Width Modulated
RKE Remote Keyless Entry
RSIACM Right SIACM
Rough, Unstable, or
Erratic Idle/Stalling The engine runs unevenly at idle and causes the engine to shake if it is severe enough. The engine idle rpm may vary (called hunting). This condition may cause stalling if it is severe enough.
SAB Side Airbag
SBEC Single Board Engine Controller
SIACM Side Impact Airbag Control Module
SKIM Sentry Key Immobilizer Module
SKIS Sentry Key Immobilizer System
SQUIB also called Initiator (located in rear of Airbag Module)
Start & Stall The engine starts but immediately dies.
Surge Engine RPM fluctuation without corresponding change in throttle position sensor
TCM Transmission Control Module
TPS Throttle Position Sensor
TRS Transmission Range Sensor
VFD Vacuum Fluorescent Display
VTSS Vehicle Theft Security System
VSS Vehicle Speed Sensor/Signal