DESCRIPTION
SERVICE MANUAL NUMBER 22
90-860074--1 FEBRUARY 2002 Page 5A-7
Diagnostic Information
The diagnostic information and functional checks contained in SECTION 5E of this manual
are designed to locate a faulty circuit or component through logic based on the process of
elimination. The information was prepared with the requirement that the system functioned
correctly at the time of assembly and that there are no multiple failures.
Terminology
ABBREVIATIONS
ADF
MAP (Manifold Atmospheric Pressure) Sensor
BARO Barometric Pressure
BAT Battery Positive Terminal, Battery or System Voltage
B+ Battery Positive
CKT Circuit
CONN Connector
CYL Cylinder
DEG Degrees
DIAG Diagnostic
DLC Data Link Connector
DTC Diagnostic Trouble Code
DVOM Digital Volt Ohmmeter
ECM Engine Control Module
ECT Engine Coolant Temperature
EEPROM Electronic Erasable Programmable Read Only Memory
EMI Electromagnetic Interference
ENG Engine
GND Ground
GPH Gallons Per Hour
IAT Intake Air Temperature
in. hg Inches Of Mercury
INJ Injection
IGN Ignition
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