Volkswagen Fox 2004 Workshop Manual page 97

♦ Portable multimeter -VAG 1526C- or Multimeter -V.A.G 1715-
♦ Auxiliary cable set -V.A.G 1594 A-
♦ Test probe -VAG 1527B-
Test conditions
• The fuses must be in order.
• The battery voltage must be at least 11.5 V.
• All power consuming components, like lights and rear window
demister, must be off.
Check operation and power supply voltage
– Fold rear seat forwards.
– Remove fuel pump access cover.
– Briefly operate starting motor. The fuel pump operation must
be audible.
– Switch off ignition.
If fuel pump does not work:
– Remove 4-pin connector from the fuel pump flange.
– Connect Test probe -VAG 1527B- to outer contacts of con‐
nector using adapter cables from -V.A.G 1594 - .
– Switch ignition on. The LED shall light ON for about 2 seconds.
If the LED does not light ON:
– Locate and repair cable interruption, according to the current
circuits scheme. ⇒ Current flow diagrams, Electrical fault find‐
ing and Fitting locations.
If the LED lights ON (power supply OK).
– Remove fuel pump ⇒ page 91
– Check if cables are connected between flange and fuel pump.
In case there is no cable interruption:
– Replace fuel pump ⇒ page 91
Check current consumption at fuel pump
– Remove 4-pin connector from the fuel pump flange.
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3 - Cyl. diesel engine - Edition 02.2009
1. Fuel supply system components - remove and install
Fox 2004 ➤
93