Definitions and System Terminology

ABS Anti-Lock Brake System

A/C Air Conditioning

A/D Analog to Digital

ALDL Assembly Line Data Link

ATS Air Temperature Sensor

BARO Barometric Pressure

BCM Body Computer Module

BLM Block Learn Multiplier

C3I Computer Controlled Coil Ignition

CKT Circuit

CL Closed Loop

CPS Central Power Supply

C/V Chime/Voice Module

Data Line Circuit 800, the on-board computer communication network.

Data Signal A signal sent to or from a computer on a common wire with many other messages.

DERM Diagnostic Energy Reserve Module. (Controls the SIR system).

Diagnostics The self-diagnostic portion of the on-board computer system.

DIC Driver Information Center

Discrete Signal An individual voltage or ground signal this is carried on its own wire.

DVM Digital Volt Meter

EBCM Electronic Brake Control Module

ECC Electronic Climate Control

ECI Extended Compressor at Idle

ECM Engine Control Module

EEPROM Electronically Erasable Programmable Read Only Memory

EGR Exhaust Gas Recirculation

ESC Electronic Spark Control

EST Electronic Spark Timing

EVRV Electronic Vacuum Regulator Valve

HTR Heater

HVAC Heating Ventilation and Air Conditioning

IAC Idle Air Control

IAT Intake Air Temperature sensor

IPC Instrument Panel Cluster

ISC Idle Speed Control

ISO Power or Ground A solid state circuit that is separated from non-solid state circuits.

LCD Liquid Crystal Display

LED Light Emitting Diode

LHG Left Hand Grommet, drivers side of cowl.

LSP Left Switch Pod

MAF Mass Air Flow

MAP Manifold Absolute Pressure

MAT Manifold Air Temperature

Mem-Cal Memory and Calibration unit used in the ECM in place of a PROM.

ms milliseconds

mv millivolts

O2 Oxygen

OAT Outside Air Temperature

OL Open Loop

POT Potentiometer (Variable Resistor)

PRNDL Transmission mounted neutral start switch or gear selector illumination on IPC.

PROM Programmable Read Only Memory

PWM Pulse Width Modulated

RAP Retained Accessory Power

RHG Right Hand Grommet, passengers side of cowl.

RPM Revolutions Per Minute

RSP Right Switch Pod or Assembly

SDD Speed Dependent Damping

Sol Solenoid

TCC [1][2]Torque Converter Clutch

TPS Throttle Position Sensor

VF Vacuum Fluorescent

VSS Vehicle Speed Sensor

Wakeup An input signal that turns on a computer device.