Suzuki Liana RH413, Service Manual

Page: 15 / 1302

Precautions: 00-8
• Be careful not to touch the electrical
terminals of parts which use
microcomputers (e.g. electronic control
unit like as ECM, PCM, P/S controller, etc).
The static electricity from your body can
damage these parts.
• Never connect any tester (voltmeter,
ohmmeter, or whatever) to electronic
control unit when its coupler is
disconnected. Attempt to do it may cause
damage to it.
• Never connect an ohmmeter to electronic
control unit with its coupler connected to
it. Attempt to do it may cause damage to
electronic control unit and sensors.
• Be sure to use a specified voltmeter /
ohmmeter. Otherwise, accurate
measurements may not be obtained or
personal injury may result. If not specified,
use a voltmeter with high impedance (M
Ω
/
V minimum) or a digital type voltmeter.
• When taking measurements at electrical
connectors using a tester probe, be sure to
insert the probe (2) from the wire harness
side (backside) of the connector (1).
• When connecting meter probe (2) from
terminal side of coupler (1) because it can’t
be connected from harness side, use extra
care not to bend male terminal of coupler
of force its female terminal open for
connection.
In case of such coupler as shown connect
probe as shown to avoid opening female
terminal.
Never connect probe where male terminal
is supposed to fit.
• When checking connection of terminals,
check its male half for bend and female
half for excessive opening and both for
locking (looseness), corrosion, dust, etc.
• Before measuring voltage at each terminal,
check to make sure that battery voltage is
11 V or higher. Such terminal voltage check
at low battery voltage will lead to
erroneous diagnosis.
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