LOGIC: If the backup lights go on with the key on, selector in reverse, It is not logical that the park and reverse contacts won't function. I can see one not working but not both.
Is there a relay to do with an old anti theft setup that is in the circuit?
Very strange that one day it is OK and the next it won't start without the car being touched.

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1984 300SD turbo 126
"My true love"

God made me an atheist and who am I to question His wisdom