Cadillac Repair Questions? Ask a Mechanic for Answers ASAP
Welcome, I'm Chris (aka Moose) I prefer to work when others don't, I am here around lunch and after dinner till after midnight.working after noon till just after midnight.
Here is the electrical circuit for this concern. Do you have the skills and tools to access the shifter to test the ignition lock switch?
We need to see if when in park the purple/white and back wires are both grounded. If they are then we need to test the ignition actuator at the ignition cylinder.
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You can test at the actuator if you choose. It needs power and ground to activate and move the pin.
Hello again Chris here,