A6 Quattro Wagon V6-2.8L (AFC) (1995)
Throttle Position Sensor: Testing and Inspection
Checking Wiring
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 WIRING TO ENGINE CONTROL MODULE
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Connect VAG 1598 test box with VAG 1598/11 adapter harness to the Engine Control Module (ECM). See: Computers and Control
Systems/Testing and Inspection/Scan Tool Testing and Procedures/Scan Tool Testing/Scan Tool Connecting and Initial Checks/Connecting
and Testing VAG 1598 Pin Out Box
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Adapter harness for ECM is not connected.
6-Pin Connector
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Test for continuity between throttle position sensor Ground terminal 2 and test box socket 45.
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Specified value: maximum 1.0 ohm
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Test for continuity between throttle position sensor positive terminal 1 and test box socket 46.
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Specified value: maximum 1.0 ohm
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Test for continuity between throttle position sensor signal wire terminal 3 and test box socket 47.
^
Specified value: maximum 1.0 ohm
If specifications are not achieved:
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Determine open and/or short circuit in wiring harness between 6-pin TP sensor connector in engine compartment and ECM connector -A-
according to wiring diagram, and repair as necessary.
6-pin connector
ECM connector A
1
6
3
7
2
Ground (GND)
NOTE:
Use only gold-plated terminals for repairing terminals in the terminal connector for throttle position sensor.
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Check and erase Diagnostic Trouble Code (DTC) memory.
If there is no malfunction in wiring harness or connections:
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Replace ECM .