A8 Sedan V8-3.7L (AEW) (1997)
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Unscrew cover for kick-down switch -arrow-.
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Disconnect 2-pin harness connector from kickdown switch -F8 (item 12), refer to "Accelerator Pedal Linkage (Vehicles With Electronic Throttle
Control), Servicing" under "/Powertrain Management/Fuel Delivery and Air Induction/Throttle Cable/Linkage" See: Powertrain Management/Fuel
Delivery and Air Induction/Accelerator Pedal Cable/Service and Repair
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Carefully lift safety latch -arrow- and turn stop counter clockwise.
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Remove kick-down switch.
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Connect multimeter to kick-down switch (resistance range)
Specification: infinity Ohm (no continuity)
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Press Kick-Down switch
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Shortly after kick-down point, reading must drop to 0 Ohm.