Notes when the connector is mounted on a vehicle
・ Ensure the following contents, and confirm there is no problem with the performance of the connector before use.
As for other operating conditions, refer to the connector specifications.
Female connector

Male connector

Secured part

Electric wireNo.

Notes when mounting theconnector on a vehicle

FigurePossible defects
If the connector is not secured properly,
the following defects. etc. may occur.
Strange noise

1 Secure the connector.

✔Secure it properly.
Secure the wires in an area
exposed to severe vibration
or impact, such as an area
just above an engine or at adoor, to prevent the
2 connector or the terminal frombeing adversely affected bythem, which is to lower therisk of electrical contact
failure, etc. due to thevibration of the wires.

✔Wires are secured
No tension
applied tothe wires

Do not apply tension to the
3 connector and the wire seal
when routing the wires.

If the wire is not fixed properly on an area, whichis exposed to severe vibration or impact, thefollowing defects, etc. may occur.
Connection failure
Wire breakConnector damage

🚫 Insecure
Loose wires✔ Secure

Connector damage caused by shaking
Connection failure caused by vibrationsof a vehicle,

Short circuit/corrosion caused by water
penetration,

No tension
applied tothe wires

🚫 Insecure
Wire is stretched.

If tension is applied to the wires, the following
defects. etc. may occur.

Short circuit/corrosion caused by water thatpenetrates from the sealed section.
Wire break,🚫 Insecure

Wire is stretched.

✔ Secure
Horizontal

🚫 Insecure
VerticalSet the connector to prevent
water from pooling in the wire
4
seal and the engagement
part (connector sealing part).

Short circuit/corrosion by absorbing water
The wire isremoved upward.

When using the connector in
an area which may beaffected by stones or isexposed to water (raindrops,
5 mud, high-pressure washing,ice), take measures with acover, etc. to protect theconnector, the wire seal andthe wires.

If water pools in the wire seal or the engagement
part, the following defects. etc. may occur.

The connector is used without acover or other !"#$%&$'#()*wherea stone may hit.
🚫

Connector damage caused by freezing,

If the connector is used without any protectionsin an area which is affected by high-pressure
washing, ice, or stones, the following defects.
etc. may occur.
Short circuit/corrosion caused by water
penetration
Connector damage

✔
NEVER use the connector in
an area which may be
6submerged, or under thesubmerged condition.

The connector specifications are not intended forthe use under the submerged condition. If not
avoided, the following defects, etc. may occur.
🚫

🚫

The connector
is used under thesubmergedcondition.
The connector is used in an area
where it may be affected by thefollowing fluids when replenishingthem.
Battery

When replenishingbattery/radiator/window shield
washer fluids, do not place7
the connector in an area
where it may be affected by
the fluids.

If the connector is affected by the fluids, thefollowing defects. etc. may occur.
Short circuit/corrosion caused by water
penetration
Connector damage

Washer tank

Radiator

One of the connectors shallbe open to keep the balanceof external and internal
8
atmospheric pressure(prevent water penetrationfrom the wires).

Short circuit/corrosion caused by water
penetration

Sealedc onnec tor(Equipment)
Sealedc onnec tor

Elec tric wires

Unless one of the connectors is open, water may
penetrate into the connectors due to thepressure fluctuation caused by the environmental
temperature change. (Short circuit, corrosion)

One of the connectors shall be open.
✔ Secure
The ends are

If using a dummy plug, makealigned.
sure the dummy plug end
does not stick out of the🚫 The dummy plug is9
connector end after engaging
inserted too deeply.
the connectors.
🚫

The dummy plug sticks
out of the connector

If the dummy plug sticks out of the connector
end, the following defects may occur.
The dummy plug comes out of theconnector.
(Short circuit/corrosion caused by waterpenetration)

Other notes
Usage of small diameter wires
Bundle up multiple wires in order not to apply a load on one wire. Do not apply excessive tension to the wires
when bundling them up.
Selection of connector
Check the connector materials before use. Hydrolysis may occur in the connector depending on its materials when
the connector is used under the high temperature/ high humidity conditions.
See the product specifications for the performance and proper operating conditions of the connector.