Using Testers - HYOSUNG MS3 250 Sercie Manual

● Never connect any tester (voltmeter, ohmmeter, or
whatever) to the ECU when its coupler is
disconnected.
Otherwise, damage to ECU may result.
● Never connect an ohmmeter to the ECU with its
coupler connected. If attempted, damage to ECU
or sensors may result.
● Be sure to use a specified voltmeter / ohmmeter.
Otherwise, accurate measurements may not be
obtained and personal injury may result.
◉ ◉ USING TESTERS
● Use well-charged batteries in the tester.
● Be sure to set the tester to the correct testing
range.
▣ ▣ USING THE TESTER
● Incorrectly connecting the �
cause the inside of the tester to burnout.
● If the voltage and current are not known, make
measurements using the highest range.
● Check that no voltage is applied before making
the measurement. If voltage is applied the tester
may be damaged.
● After using the tester, turn the power off.
and �
probes may
FI SYSTEM DIAGNOSIS 4-4