Transfer Fuel Pump (fp) G6 Electrical, Checking Audi TT 8N

Special tools, testers and auxiliary items required

1. Hand held remote control (jumper).
2. Multimeter.
3. Electrical connector test lead set.

Test conditions

1. Battery voltage 12.5 V.
2. Fuse S228 OK.
3. Fuse S132 OK.
4. Fuse S134 OK.

1. Fuel Pump (FP) Relay J17 OK.
2. Fuel filter OK.
3. Ignition switched off.

Test procedure

1. Perform a preliminary check to verify the customers complaint. Refer to --> «General Diagnosis»(ref-276276-S40851803372008010300000)

Start diagnosis

TT Coupe

1. Remove the rear seat bench. Refer to --> «72 - SEAT - FRAMES»(ref-276288-S22362789412008010300000) .

TT Roadster

1. Remove the right rear side trim panel. Refer to --> «70 - INTERIOR TRIM»(ref-276288-S26491609832008010300000) .

All vehicles

Scheme 1

1. Remove the cover retainers - arrows - from the right sealing flange.

Scheme 2

1. Press both latches in direction of - arrow - and remove the engine compartment E-box cover.

Scheme 3

1. Remove Fuse SB1 from "fuse carrier ST2" - 2 -.

Scheme 4

1. Connect a Hand held remote control (jumper) to the terminal on Fuse SB1 and to battery "+".
2. Press the switch on the Hand held remote control (jumper).

Note. The Fuel Pump (FP) runs quietly. Avoid surrounding noises while testing the fuel pump.

1. Listen for an operating noise from the Transfer Fuel Pump (FP) G6.

If no operating noise is heard

1. Remove the fuel delivery unit. Refer to --> «24 MULTIPORT FUEL INJECTION (MFI)»(ref-276275-S13244009452008010300000) .

Scheme 5

1. Using a Multimeter , check the Transfer Fuel Pump (FP) G6 electrical connector terminals 1 to 4 for continuity.

Specified value: 0 ohms.

If the specification was not obtained

1. Check the Transfer Fuel Pump (FP) G6 electrical harness connector terminal 1 to 4 for a short circuit to Battery positive (+) or an open circuit.
2. If necessary, repair the faulty wiring connection.

If no malfunction is detected in the wiring and the resistance value was not OK

1. Replace the Transfer Fuel Pump (FP) G6.

If no malfunction is detected in the wiring and the resistance value was OK

If an operating noise is heard

Checking voltage

1. Switch the ignition on.
2. Using a Multimeter , check the Transfer Fuel Pump (FP) G6 electrical harness connector terminal 1 to Ground (GND) for voltage.
3. Switch the ignition off.

Specified value: Battery voltage.

If the specification was not obtained

1. Check the Transfer Fuel Pump (FP) G6 electrical harness connector terminal 1 to the Fuel Pump (FP) Relay J17 socket 23/87 for an open circuit, or a short circuit to Battery positive (+) or Ground (GND).
2. Check the electrical harness connector for damage, corrosion, loose or broken terminals.
3. If necessary, repair the faulty wiring connection.

If the specification was obtained

Checking Ground (GND)

1. Using a Multimeter , check the Transfer Fuel Pump (FP) G6 electrical harness connector terminal 5 to the Ground (GND) connection on right lower A-pillar for resistance.

Specified value: 1.5 ohms Max.

If the specification was not obtained

1. Check the Transfer Fuel Pump (FP) G6 electrical harness connector terminal 4 to the Ground (GND) connection on right lower A-pillar for an open circuit, or a short circuit to Battery positive (+) or Ground (GND).
2. Check the electrical harness connector for damage, corrosion, loose or broken terminals.
3. If necessary, repair the faulty wiring connection.

If no malfunction is detected in the wiring

1. Replace the Fuel Pump (FP) Relay J17.
2. Assembly is performed in the reverse of the removal.

Final procedures

After the repair work, the following work steps must be performed in the following sequence

1. Check the DTC memory.
2. If necessary, erase the DTC memory. Refer to «Diagnostic Mode 04: Reset/Delete Diagnostic Data»(ref-276276-S31279847122008010300000) .
3. If the DTC memory was erased, generate readiness code. Refer to «Readiness Code»(ref-276276-S05799074302008010300000) .

End of diagnosis