YH4
GRAND
VITARA
1. Coupler
2. Probe
1. Coupler
2. Probe
3. Where male
terminal fits
0A-10 GENERAL INFORMATION
PRECAUTIONS FOR ELECTRICAL CIRCUIT
SERVICE
When disconnecting and connecting coupler, make sure to
turn ignition switch OFF, or electronic parts may get dam-
aged.
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 dam-
age to electronic control unit and sensors.
Be sure to use a specified voltmeter / ohmmeter. Otherwise,
accurate measurements may not be obtained or personal in-
jury may result.
When taking measurements at electrical connectors using a
tester probe, be sure to insert the probe from the wire har-
ness side (backside) of the connector.
When connecting meter probe from terminal side of coupler
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.
YH4
GRAND
VITARA
BODY ELECTRICAL SYSTEM 8-3
When installing the wiring harness, fix it with clamps so that no
slack is left.
When installing vehicle parts, be careful so that the wiring har-
ness is not interfered with or caught by any other part.
To avoid damage to the harness, protect its part which may con-
tact against a part forming a sharp angle by winding tape or the
like around it.
When replacing a fuse, make sure to use a fuse of the specified
capacity. Use of a fuse with a larger capacity will cause a damage
to the electrical parts and a fire.
Always be careful not to handle electrical parts (computer, relay,
etc.) in a rough manner or drop them.
