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Thanks so we need to diagnose the ignition switch, starter, starter relay, and park neutral switch.
Auto or manual transmission?
What liter engine?
We need to get it to crank with the key before we can get it to start.
At the starter interlock relay under the left side of the dash are there 2 pins there with battery voltage when trying to start?
Below is a wire diagram.
There are no wires coming out of the relay. The wires are in the relay panel where the relay plugs in.
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You should be testing the pins where the relay plugs in, not the wires. However you can conform your at the correct relay using the wire diagram to match up the wire colors to the relay.
There should be :
I think your test the interrupt relay not the interlock relay. At the interrupt relay both white/blue wires should be power when trying to start.
Okay the interrupt is getting the start signal from the key.
The interrupt is energizing and sending power out to the interlock.
Can you OHM test the interlock GN/YE wire to ground while trying to start, it should show no resistance meaning its grounded.
With these results if the interlock is getting a ground, it to would energize and power the BU/RD wire with the relay installed.
Great, check the white red wires to the interlock they should be powered when trying to start. If so then this relay should click under your finger tip when starting. If it does then power flow continues to the park neutral inhibitor on the blue/red then turns to a black/yellow wire. If the inhibitor is showing P or N then power will flow out of it on the black/white then the yellow/blue to the starter motor.