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Home >> Audi >> 2016 >> S5 Prestige, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 661 (3.0L - Fuel Supply System - Engine Code(S): CPNB) >> 20 Fuel Supply >> Fuel Pump >> Transfer Fuel Pump -G6-, CHECKING >> Transfer Fuel Pump -G6-, ELECTRICAL TESTING, 4-CYLINDER AND 6-CYLINDER GENERATION I ENGINES

Transfer Fuel Pump -G6-, ELECTRICAL TESTING, 4-CYLINDER AND 6-CYLINDER GENERATION I ENGINES

WARNING: This page is about a different car, the 2016 Audi Q5, 2015 Audi Q5, and 2014 Audi Q5. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

To allocate the engine version, refer to DETERMINING ENGINE GENERATION .

Special tools and workshop equipment required 

Procedure 

Fig 1: Identifying Instrument Panel Cover
GWWA70-10665Courtesy of AUDI OF AMERICA, LLC

-- Follow all test requirements, refer to TEST CONDITIONS .

-- Pry the driver side instrument panel side cover -1- off using the Trim Removal Wedge 3409 -arrow- and remove it.

-- Remove Fuse 3 (On Fuse Panel C) -SC3- (ST2 -2- brown, 3rd large fuse from above -arrow-).

Fig 2: Connecting Injection Rate Comparison Meter Kit To Fuse Panel
GWWA20-10526Courtesy of AUDI OF AMERICA, LLC

-- Connect the Injection Rate Comparison Meter Kit - Remote Cable VAG1348/3A with the Injection Rate Comparison Meter Kit - Adapter VAG1348/3-2 on the right terminal on the socket for Fuse 3 (On Fuse Panel C) -SC3-.

-- Place the remote control switch in the front of the engine compartment.

-- Press on the marked location in direction of -arrow A- and remove the cover -2-.

-- Release the latch in direction of -arrow B- and open the cover -1-.

Fig 3: Pressing On Marked Location -Arrow A- & Remove Cover -2-
GWWA27-10179Courtesy of AUDI OF AMERICA, LLC
NOTE:

Ignore item -2-.

-- Connect the alligator clip to the Battery Jump Start Terminal -U6- item -1- in the Terminal 30 Wire Junction 2 -TV22- in the plenum chamber.

Fig 4: Connecting Battery Charger Red Charging Clamp "+" To Positive Terminal Clamp And Black Charging Clamp "-" To Negative "-" Terminal Clamp
GWWA27-10188Courtesy of AUDI OF AMERICA, LLC

-- Press the button of the remote control.

NOTE:

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

If no operating noise can be heard:

Fig 5: Identifying Locking Flange Cover & Bolts -Arrows-
GWWA20-10514Courtesy of AUDI OF AMERICA, LLC

-- Remove 1/3 of the rear seat, refer to SEAT BENCH/SINGLE SEAT, REMOVING AND INSTALLING .

-- Remove the bolts -arrows- and remove the sealing flange cover -1-.

-- Disconnect the connector -1- on the sealing flange.

Fig 6: Harness Connector -1- At Sealing Flange
GWWA20-10516Courtesy of AUDI OF AMERICA, LLC

-- Push the circlip -1- upward in direction of -arrow A- and squeeze the release in direction of -arrow B-.

Fig 7: Pulling Lock -1- Upward -Arrow A- & Press -Arrow B-
GWWA97-10641Courtesy of AUDI OF AMERICA, LLC

-- Contact the multimeter to the voltage measurement between the connector contacts -1- and -5-.

Fig 8: Checking For Voltage Between Connector Terminals -1- And -5-
GWWA28-0020Courtesy of AUDI OF AMERICA, LLC

-- Press the button of the remote control.

If the specification is not obtained:

-- Remove the wiring diagram according to the wiring diagram.

If the specified value is reached although no running noise can be heard from the pump:

Fig 9: Checking Fuel Pump Wiring Continuity
GWWA20-10401Courtesy of AUDI OF AMERICA, LLC

-- Remove the fuel delivery unit, refer to FUEL DELIVERY UNIT/FUEL LEVEL SENSOR, REMOVING AND INSTALLING .

-- Check the electrical wires between the locking flange and fuel pump to make sure they are connected and routed correctly.

-- If no fault is detected in the electrical wires, replace the fuel delivery unit.

-- Install the fuel delivery unit, refer to Installing .