Have a Honda Question? Ask a Honda Repair Expert.
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.
What model car is this?
Here is the wire diagram that goes with this circuit.
The interlock control module needs to energize the ignition lock solenoid with power and ground to allow key removal. Can you confirm the module is getting power and ground on the yellow and black wires. Can you confirm the white/black and black/blue wires are grounded with the shifter in park.
This is my 1st answer, but does not have to be my only answer. You the website and myself expect you to have a ~~~5 STAR EXCELLENT~~~ experience with my help. Please let me know if you are pleased by selecting a star rating above or by replying and saying your pleased. Not rating or rating 1-2 stars does not benefit you nor me in any way. Follow up and reply as often and when needed, there is no extra charge to do so.
Did you see the wire diagram I sent showing those wires and the location of all the parts?