Electric pump operation check
1. Set the ignition key to MAR.
2. Connect the Examiner diagnostics tool .
3. Using Examiner check that the battery voltage is higher
than 11V; if the voltage is lower, check the battery.
4. Use Examiner to see the status of the pump relay output
(ON/OFF).
5. Make gear shifts until the pump activates.
6. Stop the gear shift requests and check how long the
electric pump remains on (listening to the electric pump
and at the same time watching Examiner to see when the pump
relay status changes from ON to OFF).
7. If the status of the "pump relay output" parameter is
ON, but the electric pump activation is not heard, check
the electric power supply line of the electric pump (relay,
fuse……)
8. If at environment temperature (15-20 °C) the battery
voltage is greater than 11V and the "Pump relay ON" is
between 4 and 14 seconds, the electric pump operates
correctly .
9. If the checks have positive results , pass on to the
next step of the diagnostics table.
NOTE:
Repeat
the test several times to make sure.