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Checking current draw of fuel system pressurisation pumpG6 > < Checking fuel delivery rate of fuel system pressurisation pumpG6

Leon Mk2

Checking voltage supply of fuel system pressurisation pumpG6
Checking voltage supply of fuel system pressurisation pump -G6-
Special tools and workshop equipment required
t  Hand-held multimeter -V.A.G 1526D-
t  Ammeter clamp -V.A.G 1526B/2-
   
t  Test instrument adapter/DSO (5-pin) -VAS 5565-
Test prerequisites
l  Fuses must be OK.
l  The battery voltage must be at least 12 V, if necessary connect a battery charger.
l  All electrical consumers, e.g. lights and rear window heating, must be switched off.
–  Remove the plug connector on the supplementary fuel pump -V393- or fuel pump 2 -V277- (Inline EFP) in engine compartment.
Altea, Altea XL
–  Remove rear seats → Bodywork, interior installation work; Rep. gr.72
León
–  Remove the rear seat → Bodywork, interior installation work; Rep. gr.72.
Continued for all vehicles
–  Fold the floor covering to the side or the front.
–  Remove cover of fuel delivery unit.
–  Switch on the ignition. The fuel pump must be heard to run for about 2 seconds.
–  Switch ignition OFF.
If the fuel pump does not run:
–  Pull connector off fuel delivery unit flange.
–  Connect test instrument adapter/DSO (5-pin) -VAS 5565- between connector and flange.
  W00-10599
–  Connect hand-held multimeter -V.A.G 1526D- to contacts -1- and -5- of adapter.
–  Connect diagnosis tester and perform the guided function „Checking electric fuel pump(s)“.
  Note
The fuel pump is now activated for 30 seconds.
–  Read off the current consumption on the hand-held multimeter -V.A.G 1526D-: Specified value approx. battery voltage.
If no voltage is present:
–  Check the activation of the pump relay and the cables to see if there is a false contact or short circuit. → Vehicle diagnostic tester
Power supply is okay:
–  Remove fuel delivery unit → Chapter.
–  Check that electrical wiring between flange and fuel pump is connected and has continuity.
If there is cable integrity:
–  Renew fuel delivery unit.
  N20-10423

Checking current draw of fuel system pressurisation pumpG6 > < Checking fuel delivery rate of fuel system pressurisation pumpG6