3-23-2
BEFORE TROUBLESHOOTING
CONNECTOR HANDLING
1. Disconnect the battery plug before connecting or
disconnecting each connector or terminal.
2. When unplugging a connector, first remove the lock then,
without pulling the harness, pull out the connector while
holding the main unit.
To connect, push the connector fully until it is locked in
position.
3. When applying tester probes, always do so from the rear of the
connector (harness side).
4. When this is not possible, such as with waterproof tester
probes, make sure that inserting will not deform the connector
terminal.
5. Do not touch connector terminals directly with your hand.
6. When bringing tester probes into contact with live terminals,
prevent two tester probes from coming into contact with each
other.
WIRE HARNESS AND CONNECTOR
INSPECTION PROCEDURE
When any trouble occurs, first inspect the connectors and wire
harness of the related circuit according to the following procedure.
Continuity Inspection
1. Disconnect connectors at both ends of the relevant harness.
2. Measure the resistance between corresponding terminals of
the connectors at both ends.
Standard: 10 : or less
Note:
Move the wire harness slightly from side to side and up and
down while measuring.
Reference:
The cause of disconnections is almost always the connector as
disconnections in the vehicle's central wiring are rare. Inspect
especially the sensor connectors with sufficient care.
Short Circuit Check
1. Disconnect connectors at both ends of the relevant harness.
2. Measure the resistance between the corresponding connector
terminal and N1. Always inspect the connectors at both ends.
Standard: 1 M: or above
Note:
Move the wire harness slightly from side to side and up and
down while measuring.
03.book 2 ページ ２００７年２月２２日 木曜日 午後４時４７分
LPG Device for 4Y-E Engine
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