Fuel Pump, Testing Electrically

Special tools and workshop equipment 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 .

TT Coupe: 

-- Remove rear seat bench. Refer to Removal and Installation .

TT Roadster: 

-- Remove the right side rear panel trim panel. Refer to Removal and Installation .

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.

If no operating noise can be heard:

-- Install the fuel delivery unit. Refer to 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. Refer to Removal and Installation .

TT Coupe: 

-- Install rear seat bench. Refer to Removal and Installation .