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Checking fuel delivery rate > < Checking fuel pump (vehicles ? model year 2006)

Golf Mk5

Checking function and voltage supply
Checking function and voltage supply
   
E-box in engine compartment (vehicles ► model year 2006)
Test prerequisites
l  Test prerequisites
l  Battery voltage at least 11.5 V
l  Fuse SB33 in socket F33 in engine compartment E-box OK.
l  Ignition switched off.
–  Remove rear seat bench.
–  Remove cover from fuel delivery unit.
–  Switch on ignition. The fuel pump must run.
  Note
The fuel pump runs very quietly.
–  Switch off ignition.
If the fuel pump does not start:
–  Open cover of relay and fuse holder of engine compartment E-box.
–  Pull fuse SB33 out of socket F33 of fuse holder.
  N20-10030
–  Connect remote control for V.A.G 1348 -V.A.G 1348/3A- with adapter cable -V.A.G 1348/3-3- to right terminal of fuse socket F33.
–  Tape off 2nd connector contact of the adapter cable -V.A.G 1348/3-3- with insulating tape -arrow- to prevent short circuits.
–  Connect crocodile clip to vehicle battery (+).
–  Press remote control switch.
If fuel pump runs:
–  Check activation of fuel pump relay -J17- referring to current flow diagram → Current flow diagrams, Electrical fault finding and Fitting locations.
If fuel pump does not run:
–  Pull 5-pin connector off fuel delivery unit flange.
  A20-1095
–  Connect voltage tester -V.A.G 1527 B- to outer contacts of connector using auxiliary cables from auxiliary measuring set -V.A.G 1594 C-.
–  Operate remote control. LED must light up.
If LED does not light up:
–  Locate and eliminate open circuit referring to current flow diagram: → Current flow diagrams, Electrical fault finding and Fitting locations.
If LED lights up (voltage supply OK):
  N20-10045
–  Open locking ring using fuel tank sender wrench -3087-.
–  Check that electrical wires between flange and fuel pump are connected.
If no open circuit can be found:
–  Fuel pump defective, renew fuel delivery unit → Chapter.
  N20-10047

Checking fuel delivery rate > < Checking fuel pump (vehicles ? model year 2006)