SEAT Workshop Service and Repair Manuals > Leon Mk1 > Power unit | 4LV Injection and Ignition System | Self diagnosis, V.A.G Inspection Service | Final control diagnosis | Final control diagnosis: carrying out

Activate the fuel pump relayJ17

Activate the fuel pump relay -J17-

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Press →.

Reading on display:

The fuel pump relay (on the relay holder plate) should click until you press the button → to activate the next actuator.

Note!

During fuel pump relay activation you should hear the fuel pump start up intermittently. Do not activate the door contact switch during the test.

If the relay does not click:

–	Test the fuel pump relay: → Current flow diagrams, Electrical fault finding and Fitting locations

Final control diagnosis                →

Fuel pump relay -J17

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