AUTOMOTIVE TERMS ABBREVIATIONS
IAC-  Idle Air Control

IAT-  Intake Air Temperature

IC-  Integrated Circuit, Ignition Control

ICM-  Ignition Control Module

ID-  Identification, Inside Diameter

IDI-  Integrated Direct Ignition

ign-  Ignition

ILC-  Idle Load Compensator

in-  Inch/Inches

INJ-  Injection, Fuel Injector

inst-  Instantaneous, Instant

IP-  Instrument Panel

IPC-  Instrument Panel Cluster

ISC-  Idle Speed Control

ISO-  International Standards Organization

ISS-  Input Speed Shaft, Input Shaft Speed

ITCM-  Integrated Transmission Control Module