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Intake manifold pressure sender checking > < Throttle valve control part checking

Leon Mk2

Checking voltage supply and wiring to control unit
Checking voltage supply and wiring to control unit
Test conditions
l  Battery voltage at least 11.5 V.
Test sequence
–  Pull 6-pin connector off throttle valve control part.
   
–  Connect multimeter to measure voltage using aux. cables from -V.A.G 1594 C- to connector contacts 2+6.
–  Switch on ignition.
   Specification: min. 4.5 V
–  Switch off ignition.
  M24-0068
–  To measure voltage connect the multimeter to contact 2 of the connector and earth.
–  Switch on ignition.
   Specification: min. 4.5 V
–  Switch off ignition.
If the specifications are not attained:
  M24-0069
–  Connect test box -V.A.G 1598/31- to control unit wiring harness. The engine control unit remains disconnected.
  N24-0943
–  Check wiring for open circuit between test box and connector using current flow diagram.
   Contact 1+socket 92
   Contact 2+socket 83
   Contact 3+socket 117
   Contact 4+socket 84
   Contact 5+socket 118
   Contact 6+ socket 91
   Wire resistance: max. 1.5 Ω
–  Additionally check wires for short to one another.
–  Additionally check the wiring for short to battery positive or earth.
If no wiring fault is detected:
–  Check engine control unit voltage supply → Chapter.
  M24-0048

Intake manifold pressure sender checking > < Throttle valve control part checking