Fuel Pump, Testing Electrically

Fuel Pump, Testing Electrically

Special tools, testers and auxiliary items required

• Remote Control (V.A.G 1348/3A) with Adapter Cable (V.A.G 1348/3-2)

• Multimeter (V.A.G 1526D)

• Connector Test Set (V.A.G 1594C)

• Remote Control (V.A.G 1348/3-3)

Procedure

Observe test conditions, refer to => [ Test Conditions ] General Information.

TT Coupe:

- Remove rear seat bench.

TT Roadster:

- Remove the right side rear panel trim panel.

All Vehicles:

- Unclip the retainers - arrows - of the cover for sealing flange.






- Disconnect the connector - arrow - from the locking flange.






- Connect the (V.A.G 1348/3A) with (V.A.G 1348/3-3) with an adapter cable from (V.A.G 1594C) at terminal - 1 -.






- Cover the second connector terminal of (V.A.G 1348/3-3) with insulating tape to prevent short circuit - arrow -.

- Connect contact - 5 - to vehicle Ground (GND) using a jumper cable from the (V.A.G 1594C).

- Connect alligator clip to battery positive.

- Press the switch on the remote control.

• Running noise of pump must be audible.

• The fuel pump runs quietly. Avoid surrounding noises while testing the fuel pump.

If no operating noise can be heard:

- Install the fuel delivery unit. Refer to => [ Fuel Delivery Unit ] Fuel Delivery Unit.

- Check if the electrical wiring between the flange and fuel pump is connected and has continuity.






If no fault is detected in the wiring:

- Fuel pump faulty. Replace the fuel delivery unit.

Assemble in reverse order of disassembling. Note the following:

TT Roadster:

- Install the right side rear panel trim panel.

TT Coupe:

- Install rear seat bench.