TT Coupe L4-1.8L Turbo (AWP) (2005)
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Connect multimeter (resistance measurement range) between contacts 2 and 3.
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Specification: 730 to 1000 Ohms
NOTE: The resistance value for the Engine speed sensor is based on a temperature of 20 degrees C. As the temperature rises, the resistance value
increases.
If the specification is not attained:
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Fit a new Engine speed sensor.
If the specification is obtained:
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Connect multimeter (resistance test range) to contacts 2 and 1 (screening) and to contacts 3 and 1 (screening).
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Specification: Infinity Ohms (no continuity)
If the specification is not attained:
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Install a new Engine speed sensor.
If the specification is obtained:
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Connect test box VAG 1598/31 to wiring harness for engine control module. Do not connect to the engine control module itself.
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Test for open circuit and short to positive or Ground in the following wiring connections:
Connector Contact
Test box VAG 1598/31 Socket
1 (screening)
108
2 (Ground)
90
3 (signal)
82