DR ALL-TERRAIN Service Manual download pdf (Page 83)

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101

FUEL SYSTEM (DFI) 3-19

DFI Servicing Precautions

There are a number of important precautions that should

be followed servicing the DFI system.

○

This DFI system is designed to be used with a 12 V sealed

battery as its power source. Do not use any other battery

except for a 12 V sealed battery as a power source.

○

Do not reverse the battery cable connections. This will

damage the ECU.

○

To prevent damage to the DFI parts, do not disconnect the

battery cables or any other electrical connections when

the ignition switch is on or while the engine is running.

○

Take care not to short the cables that are directly con-

nected to the battery positive (+) terminal to the chassis

ground.

○

When charging, remove the battery from the vehicle. This

is to prevent ECU damage by excessive voltage.

○

Do not turn the ignition switch ON while any of the D FI

electrical connectors are disconnected. The ECU memo-

rizes service codes.

○

Do not spray water on the electrical parts, DFI parts, con-

nectors, leads, and wiring.

○

Whenever the DFI electrical connections are to be dis-

connected, first turn off the ignition s witch, and disconnect

the battery (–) terminal. Do not pull the lead, only the con-

nector. Conversely, make sure that all the DFI electrical

connections are firmly reconnected before starting the en-

gine.

○

Connect these connectors until they click [A].

○

If a transceiver is installed on the vehicle, make sure that

the operation of the DFI system is not influenced by elec-

tric wave radiated from the antenna. Check operation of

the system with the engine at idle. Locate the antenna as

far as possible away from the ECU.

○

When any fuel hose is disconnected, fuel may spout out

by residual pressure in the fuel line. Cover the hose joint

with a piece of clean cloth to prevent fuel spillage.

○

When any fuel hose is disconnected, do not turn on the

ignition switch. Otherwise, the fuel pump will operate and

fuel will spout from the fuel hose.

○

Do not operate the fuel pump if the pump is completely

dry. This is to prevent pump seizure.

○

Before removing the fuel system parts, blow the outer sur-

faces of these parts clean with compressed air.

○

To prevent corrosion and deposits in the fuel system, do

not add to fuel any fuel antifreeze chemicals.

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DR ALL-TERRAIN Service Manual Page 83

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