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Fault table: from code V.A.G?16596/codes SAE P0 > < Continuation of the test if the activated charcoal filter solenoid valve 1 does not click:

Leon Mk1

Continuation of the test if the exhaust recirculation valve does not click:
Continuation of the test if the exhaust recirculation valve does not click:
   
–  Remove the double connector from the exhaust recirculation valve -N18--arrow- (at the camshaft housing, to the left).
The diode light flashes:
  N01-0256
–  Connect the diode light -V.A.G. 1527- to the removed connector, using the auxiliary leads of the -V.A.G. 1594- and between contacts 1 + 5 test: The diode light should flash (brighten and dim)
–  Continue the final control diagnosis until the end.
–  Switch off the ignition.
–  Replace the exhaust recirculation valve -N18-: → Rep. Gr.26
The diode light does not flash:
–  Continue the final control diagnosis until the end.
–  Switch off the ignition.
  N01-0258
–  Connect test box -V.A.G. 1598/31- to the wiring harness of the control unit, without connecting the engine control unit.
  N24-0943
–  Test for open circuits in the wiring between test box female contact 114 + 6-contacts connector, contact 5, follow the wiring diagram. Wire resistance: 1.5 Ω max.
–  Also test the wiring for short circuits to battery positive and earth. Target value: ∞ Ω
–  Test for open circuits in the wiring between contact 1 of the 6-contacts connector and the fuel pump relay -J17-, following the wiring diagram. Wire resistance: 1.5 Ω max.
If no wiring fault is found:
–  Replace the engine control unit → Anchor
  N01-0258

Fault table: from code V.A.G?16596/codes SAE P0 > < Continuation of the test if the activated charcoal filter solenoid valve 1 does not click: