1. Safety Precautions and Warnings
To prevent personal injury or damage to vehicles and/or
the scan tool, read this instruction manual first and
observe the following safety precautions at a minimum
whenever working on a vehicle:
2.General Introduction
2.1 On-Board Diagnostics(OBD)II
The first generation of On-Board Diagnostics(called
OBD I)was developed by the California Air Resources
Board (ARB) and implemented in 1988
to monitor
Always perform automotive testing in a safe environment.
Wear safety eye protection that meets ANSI standards.
Keep clothing, hair, hands, tools, test equipment, etc. away
from all moving or hot engine parts.
Operate the vehicle in a well ventilated work area: Exhaust
gases are poisonous.
Put blocks in front of the drive wheels and never leave the
vehicle unattended while running tests.
Use extreme caution when working around the ignition coil,
distributor cap, ignition wires and spark plugs. These com-
ponents create hazardous voltages when the engine is
running.
Put the transmission in PARK (for automatic transmission)or
NEUTRAL (for manual transmission) and make sure the
parking brake is engaged.
Keep a fire extinguisher suitable for gasoline/chemical/
electrical fires nearby.
Don't connect or disconnect any test equipment while the
ignition is on or the engine is running.
Keep the scan tool dry, clean, free from oil/ water or grease.
Use a mild detergent on a clean cloth to clean the outside of
the scan tool when necessary.
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