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I looked up the wiring schematic and found that your door ajar switch is a normally open switch. This means if you unplug or somehow disconnect the switch, it will shut the interior lights off.
The shifter interlock is controlled by the brake light circuit. Make sure your brake lights are operational first. I have seen the brake light switch and the wires leading into the switch fail causing this concern.
I inserted your vehicle info into the estimate link at the top of the page. It came up with a price of $538- $717. This does not include tax or diagnosic fees.
I inserted your info into the estimate link at the top of the page. It came up with $515-$871 for a price. This does not include diagnosis or tax.
I do not know much about "Blue devil liquid", but a simple block test is in order. This test will detect any hydrocarbons in your cooling system from a cracked or blown headgasket. It is available at most auto parts stores. The bubbling noise you hear I suspect is a symptom of headgasket failure.
First, look at the A/C compressor clutch, does it engage? A very common cause for the A/C clutch for not engaging is the CCRM or constant control relay module. It is located under the air filter housing. A bit of diagnosing from the websites that Superbob suggested may lead you there.
I don't know if this may help, but I have come across a very similar symptom with the front park lights come on when depressing the brakes. It ended up being a double filament bult with the brake light portion shorting out to the tail light portion (inside the bulb). It took a smart old mechanic that knew the cause.
Typically, I see a faulty speed sensor inducing the warning lights that you are describing. The only way to know for sure is to perform a diagnostic with a scanner capable of retrieving diagnostic trouble codes from the ABS module.
I tried and failed to find the "electrical part" that you described, but there has to be a loose or poor connection in the circuit. If the component you described is what I think, it is a connector in the ground cable that can be cleaned with electronic cleaner. corrosion can build up inside it.
Check out our estimate section of this website. http://repairpal.com/estimator