TT Coupe L4-1.8L Turbo (AWP) (2005)
Engine Speed Sensor: Testing and Inspection
Engine Speed (RPM) Signal, Checking
Engine Speed (RPM) Signal, Checking
NOTE: The engine speed signal is taken from contact 37 on the engine control module. The signal is used for various functions including the rev
counter display on the instrument cluster.
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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 connection:
Test box VAG 1598/31 Socket
Instrument cluster
Socket
Contact
37
See Electrical Wiring Diagrams, Troubleshooting & Component Locations
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Correct short circuit or open circuit if necessary.