90CS Quattro V6-2.8L (AFC) (1995)
Throttle Position Sensor: Testing and Inspection
Checking Resistance
NOTE:
For functional testing of the Throttle Position Sensor (TPS), also see On-Board Diagnostics, "Read Measuring Value Block" function 08,
display group 002. See: Computers and Control Systems/Testing and Inspection
CHECKING TPS RESISTANCE
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Disconnect harness connector at the TPS.
Throttle Position Switch/Sensor Terminals
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Connect multimeter (Fluke 83 or equivalent) to terminals 1 and 2.
^
Specified value: 1500-2600 ohms
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Connect multimeter to terminals 2 and 3.
^
Closed throttle position: approx. 750-1300 ohms.
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Slowly operate accelerator pedal fully.
^
Wide open throttle: maximum 3600 ohms.
If either specification is not achieved:
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Replace TPS.
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Check and erase Diagnostic Trouble Code (DTC) memory.