If you can switch the gearshift when you hit the brake to go from P to D, the shift interlock is ok. Don't think the shift interlock has anything to do with your no start condition. Since you appear not to have power at the starter solenoid, I would back probe the wire to the starter solenoid.

I had an Audi with a No Start condition that turned out to be the wiring harness to the starter solenoid. found the break in the circuit, spliced in a new wire and connector to the starter solenoid and she always started thereafter.

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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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Audi 4000CS Quattro Sold
Jensen Healey Lotus Powered Sold
Opel 1900 Sold
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