Electric Transfer Fuel Pump, Checking

Electric Transfer Fuel Pump, Checking

Special tools, testers and auxiliary items required

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

• Hand-Held Multimeter (V.A.G 1526C)

• Connector Test Set (V.A.G 1594C)

Procedure

Observe test conditions. Refer to => [ Test Conditions ] Initial Inspection and Diagnostic Overview.

- Remove rear seat bench.

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






- Disconnect electrical harness connector - arrow - at locking flange.






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






- Using insulating tape, tape over the second contact of (V.A.G 1348/3-3) to prevent a short circuit - arrow -.

- Connect terminal - 5 - with an adapter cable from (V.A.G 1594C) to the body ground.

- Connect the clamp to the battery positive terminal.

- Press the switch on the remote control.

• Running noise of pump must be audible.

• 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 malfunction is detected in the wires, the fuel pump is faulty. Replace the fuel delivery unit.

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