volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

ABOUT US
Parts of cooling system - engine side > < Parts of cooling system - body side

Golf Mk4

Checking coolant temperature sender at radiator outletG83
Checking coolant temperature sender at radiator outlet -G83-
–  Pull 2-pin connector off coolant temperature sender at radiator outlet -G83- and connect sender to a multimeter using adapter cables from adapter set -V.A.G 1594A- or adapter set -V.A.G 1594C-. Measure resistance.
   
Scale A shows resistance values for temperature range 0...50 °C and scale B shows resistance values for temperature range 50...100 °C.
Examples:
t  30 °C is in range A and corresponds to a resistance of 1.5...2.0 kΩ.
t  80 °C is in range B and corresponds to a resistance of 275...375 Ω.
If the specification is not obtained:
–  Renew coolant temperature sender at radiator outlet -G83-.
If the specification is attained:
  N24-0640
–  Connect adapter lead, 121-pin -V.A.G 1598/31- to control unit wiring harness. The engine control unit remains disconnected.
–  Check wiring between test box and 2-pin connector for open circuit referring to current flow diagram. Contact 1 and test box socket 25 (signal), contact 2 and test box socket 47 (earth) wiring resistance: max. 1.5 Ω.
–  Additionally check wiring for short circuit to one another as well as short circuit to positive and earth.
  N24-0943

Parts of cooling system - engine side > < Parts of cooling system - body side