1. The pump is attached to the base of the fuel level sensor assembly attached to the fuel tank.
2. If there is any doubt about the correct operation of the pump, you must first check for breaks in the electrical wires of the pump. Remove the lining from the floor of the luggage compartment and remove the round cover in the floor to gain access to the sensor assembly and its connections. Disconnect the electrical plug and check if there is a permanent connection between the central and external (brown) connection plug wires
3. If the electrical wires are normal, check the relay and the fuse of the pump (№5). If the fuse is not blown, check the relay by first disconnecting the gallotron connection from the ignition distributor.
4. Remove the fuse box and relay plate cover, then remove the pump relay from position 2.
5. Turn on the ignition and use a voltage meter to check the voltage between contacts No. 2 and ground, between contacts No. 2 and No. 1 and No. 4 and No. 1.
In each case, the voltage meter should show the voltage of the battery. Finally, you need to check the voltage between pins 5 and 1, there should also be voltage between them, as on a battery.
6. Check if a voltage drop occurs when the central wire of the plug is connected to ground for a short time. If during this experiment the voltage does not drop, the ignition assembly should be checked (switch TCI/H). If the voltage drops, the fuel pump relay needs to be replaced. If in the future the voltage does not drop, give the gallotron ignition unit for verification.
7. If, after performing the above operations and the necessary repairs, the pump does not work correctly, remove the fuel level sensor assembly as described in paragraph 4 and disconnect the pump for replacement.
8. Installation takes place in the reverse order of removal.
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