Could it be the neutral safety switch aka the shift control switch or multi-function switch? Had the one on my Audi which is a 4HP18 go bad on me. The plastic over time had tiny cracks in it which was enough to prevent the contact from completing the circuit.

Switch looks like this

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2006 Infiniti G35
2001 BMW 3.0I E53 X5 Build date 08/2000 SOLD
Lotus Europa 1970 Destroyed by fire
Lotus Europa 1970 S2 Renault Powered
Lotus Type 52 1970 Twincam Webers Powered
PORSCHE 911 Targa 1982 The Garage Queen
Audi Avant donated to Kars for Kids
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