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2.2 PRECAUTION FOR ELECTRICAL
CIRCUIT SERVICE :
Disconnect the negative cable of the battery while
servicing the electrical parts that do not require
battery power and insulate the negative terminal
Fig. 6
properly (Fig. 6).
While removing the battery first disconnect the
negative cable and then the positive cable. While
reinstalling the battery, first connect the positive
cable and then negative cable.
Be sure to turn the ignition switch off before
Fig.7
disconnecting and connecting coupler to avoid
electronic parts damage (Fig. 7).
Do not touch the electrical terminals of parts which
use microcomputers (e.g. electronic control units
like ECM etc.) to avoid damage to these parts from
static electricity from your body (Fig. 8)
Always use the correct voltmeter, ohmmeter for
taking measurement to avoid damage to the
electronic control unit and sensors.
Make sure to insert the probe from wire harness
side of the connector for taking measurement.
Make sure the connector halves are mating
Fig. 8
properly and terminals seating precisely in the
connector body (Fig. 8)
Dirt / corroded terminals result in improper contact.
The terminals should be cleaned carefully.
Improper contact pressure between mating
terminals disturbs the connectivity between them.
Replace the damaged connector body to avoid
exposure of the terminals in case of inadequate
contact pressure.
GENERAL
5
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