Daihatsu F300 Service Manual page 1376

EFISYSTEM
Electronic control system
1. Before disconnecting or reconnecting the connector of the
sensor system of the EFI system, be sure
to
turn OFF the
ignition switch and all accessory switches. Also, disconnect
the battery ground cable from the battery negative terminal.
Failure to obse!Ve this caution could cause ECU
malfunction.
2. Before disconnecting or reconnecting the connector of the ECU proper of the EFI system, be sure to turn
OFF the ignition switch and all accessory switches. Also, disconnect the battery ground cable from the
battery negative terminal.
Failure to observe this caution could cause ECU malfunction.
3. Be sure to keep the number of disconnection/reconnection of the connector of the EFI system at a
minimum level.
4. When installing the battery, care must be exercised not to mistake the battery polarity.
5. Never apply strong impacts to the EFI parts. Pay utmost attention during the installation/removal.
Especially, special caution must be exercised as to the handling of the ECU.
6. When the voltage or resistance of the ECU is measured during the check, never touch terminals other
than the specified terminals. Failure to observe this caution could cause ECU malfunction.
7. Never open the cover of the ECU proper.
8. When the system is checked on a rainy day, be very careful not to allow water to get into connectors
and/or terminals.
Also, when the engine compartment is washed, prevent water from being splashed to the EFI-related
parts and wiring connectors.
9. EFI parts should be replaced as an assembly.
10. When disconnecting or reconnecting the wiring connector,
care must be exercised as to the following points.
( 1) Carefully observe the shape of the lock prior to the
disconnecting/connection.
(2) Release the lock. Disconnect the connector.
NOTE:
• When disconnecting the connector, be sure to hold the
connector body, do not to pull the wire.
(3) Insert the connector, until the lock is engaged com-
pletely.
(4) Be sure to keep the number of disconnection/reconnec-
tion of the connector at a minimum level.
EF-8
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