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ELECTRICAL

4

7. To prevent damage to the electrical/ electronic

parts (

especially computers or semi conductors

)

or to prevent fire:

a. Always disconnect the battery (For Petrol IAC

and ESS variants, only negative cable to be

removed and not IBS). Ensure that battery

leads are routed correctly and are not close to

any potential chafing points. Never reverse

connect the vehicle battery and always observe

the correct polarity when connecting test

equipment.

b. When disconnecting the battery terminals, be

sure for the following

Turn off the ignition switch and all other

switches.

Disconnect the negative (-) terminal wire

Disconnect the positive (+) terminal wire.

Connect the wires in the reverse order of

disconnecting.

c. When replacing any fuse, make sure to use the

specified capacity fuse. Using a fuse with a

larger capacity can cause damage to the

electrical parts or a fire.

d. Do not handle electrical/electronic parts (

ECU,

relay, etc)

roughly or drop them.

e. Do not expose electrical/electronic parts to high

temperature (

approximately 80°C (170°F) or

higher

) or water.

f. For open back connectors be sure to insert the

tester probe in to the back side (

wiring harness

side

) of the connector for inspection. For sealed

back connectors apply the tester probe to the

terminal as gently as possible not to damage or

deform the terminal. Make sure to use probe

with tapered tip.

g. Before commencing work on an ignition

system, all high tension terminals, adapters and

diagnostic equipment for testing should be

inspected to ensure that they are adequately

insulated and shielded to prevent accidental

personal contact and to minimize the risk of

shock.

8. When installing any of the vehicle parts, be

careful not to pinch or damage any of the wiring

harness.

9. Connectors and Harnesses

The engine compartment of a vehicle is a

particularly hostile environment for electrical

components and connectors. Always ensure these

items are dry and oil free before disconnecting and

connecting test equipment. Never force connectors

apart either by using tools or by pulling on the

wiring harness. Always ensure locking tabs are

disengaged before removal and note orientation to

enable correct reconnection. Ensure that any

protective covers and substances are replaced if

disturbed.

a. Make sure that connectors are connected

securely.