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Volkswagen Polo Workshop Service and Auto Repair Manuals

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Checking glow plugs > < Adapting engine control unit to electronic immobilizer

Checking Glow Plug System on Polo Mk3 Diesel Direct Injection, up to 0999

Checking glow plug system
Checking glow plug system
Special tools and workshop equipment required
   
t  Hand multimeter -V.A.G 1526C-
  W00-10311
t  Auxiliary measuring set -V.A.G 1594C-
Test prerequisites
l  Battery voltage at least 11.5 V
l  Ignition switched off
l  Diesel direct injection system control unit -J248- is OK.
l  Glow plug strip fuse (S 39) or (S 164) OK.
Test procedure
–  Pull connector from coolant temperature sender -G62-.
  Note
Pulling the connector off sender, simulates engine condition “cold” and when switching the ignition on the relevant glow period is carried out.
–  Pull glow plug connectors from glow plugs.
–  Connect multimeter to measure voltage between a glow plug connector and vehicle earth.
–  Switch on ignition. Approx. battery voltage must be displayed for roughly 20 seconds.
–  If no voltage is present: → Current flow diagrams, Electrical fault finding and Fitting locations
  W00-10008

Checking glow plugs > < Adapting engine control unit to electronic immobilizer