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Checking current consumption of the fuel pump for delivery rateG6 (CFWA) > < Checking delivery pressure in the fuel return line (CFWA)

Polo Mk5

Checking the current consumption of fuel pump for delivery rateG6 (CAYA, CAYB, CAYC)
Checking the current consumption of fuel pump for delivery rate -G6- (CAYA, CAYB, CAYC)
Special tools and workshop equipment required
t  Hand-held multimeter -V.A.G 1526D- or pickup clamp -V.A.G 1526B/2-
t  Test instrument adapter/DSO (5-pin) -VAS 5565-
t  Vehicle diagnosis tester
  Note
The battery voltage and the diesel fuel temperature have a great influence on the current draw of the fuel pump. For this reason ensure that the battery voltage is at least 12 V whilst checking and the diesel fuel temperature does not fall to the freezing point.
Test prerequisites
l  Battery voltage at least 12 V
l  Diesel fuel temperature above 10 °C
Polo
–  Fold rear right seat bench forwards.
–  Remove cover from fuel delivery unit → Chapter.
   
–  Pull connector -A- off flange.
  N20-10183
–  Connect test instrument adapter/DSO (5-pin) -VAS 5565- to connector and fuel delivery unit.
–  Connect pick-up clamp -A- to red terminal with lettering „pick-up clamp“ for test instrument adapter/DSO (5-pin) -VAS 5565-.
  Note
Pickup clamp of hand-held multimeter -V.A.G 1715- can also be connected to red terminal with lettering „pickup clamp“ of test instrument adapter/DSO (5-pin) -VAS 5565-.
–  Switch on ignition.
–  Connect vehicle diagnostic tester and perform guided function „Fuel pump activation (Checking fuel pump)“.
  Note
The fuel pump - G 6 - is now activated for 30 seconds.
–  Read current consumption on hand-held multimeter -V.A.G 1526D-: specification: max. 7.5 amperes.
–  If the measured value is not within specifications:
–  Renew fuel delivery unit.
t  Removing and installing fuel delivery unit → Chapter.
  N20-10424

Checking current consumption of the fuel pump for delivery rateG6 (CFWA) > < Checking delivery pressure in the fuel return line (CFWA)