A8 Sedan V8-3.7L (AEW) (1997)
Test Box, Connecting" See: Computers and Control Systems/Testing and Inspection
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Disconnect harness connector from TP sensor.
NOTE: When repairing TP sensor connector terminals, use only gold-plated terminals.
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Check wiring for open or short circuits as follows:
TP sensor connector
VAG1598/19 test box socket (ECM terminal)
terminal
1
A3
2
A19
3
A24
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If wiring is OK:
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Replace ECM and generate new readiness code. Refer to "Monitors, Trips and/or Drive Cycle (Readiness Code)/Generating, Readiness Code"
See: Computers and Control Systems/Testing and Inspection
Checking resistance
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Disconnect harness connector from TP sensor.
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Connect multimeter US 1119 (Fluke 83 or equivalent) and check resistance between connector terminals 1 and 2.
Specified value: 1.5 - 2.6 kohms
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Check resistance between terminals 2 and 3.
Specified value: 0.75 - 1.3 kohms
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Slowly open throttle valve to Wide Open Throttle (WOT) position.
Specified value: 2.4 - 3.6 kohms
If one measured value is outside specified range:
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Replace TP sensor.