DONT KNOW HOW TO FIX A FEW PROBLEMS

When my "door ajar" light was on it was because the liftgate sensors (switches) indicated that the gate was open, even thought it wasn't. I took off the plastic trim, and took out the sensors - but that isn't necessary. Just soak with the switches with silicone spray, and see if that helps. There is one on each side of the liftgate - I believe both must indicate "closed" for the light to go off.

I have gotten replacement motors at Checkers for both driver and passenger doors - so now I have lifetime replacement motors.. The first time you replace them, a little drilling is needed on the door sheet metal, but it will not show up once the trim is reinstalled. This repair is a little involved, but well within the capability of a novice mechanic.

The door light is on and the diniging is due to your driver door ajar switch being broken or not being depressed all the way.
Adjust the door to close tighter. Is the door ajar light on too?

If not, it may be the GEM module. Expensive. get from salvage yard. car-part.com. go to page with asterisk for cheapest price.
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Lamps, Courtesy The generic electronic module integrates control of all interior lights, electrical warning lamp controls and courtesy lamps by controlling interior lamp relay (13A777) . Power supply to interior lamp relay is controlled by "battery saver" function. The battery saver relay supplies power to the interior lamp control relay. The generic electronic module controls the interior lamp control relay which supplies power to the courtesy lamps. The generic electronic module activates the interior lamp relay when a signal is received from the driver, passenger, liftgate or sliding door ajar switches. After activation, the generic electronic module deactivates the relay when any of the three following conditions occurs:

1. Five seconds have elapsed after all the doors are returned to the closed position.
   

1. NOTE: Courtesy lamps are turned off if vehicle speed is greater than 24 k/mh (15 mph), and stay off until vehicle speed is less than 16 k/mh (10 mph), and a new door ajar signal is received. If a new door ajar signal is received when vehicle speed is above 24 k/mh (15 mph), the courtesy lamps will remain OFF.
   
   The ignition switch is changed to RUN or the vehicle speed is greater than 24 k/mh (15 mph).
   

1. The generic electronic module receives a LOCK command before the timer expires, it will remove power from the interior courtesy lamp control relay.
   

• If the vehicle is equipped with the illuminated entry system, the courtesy lamps dim to OFF shortly after the door is closed.
• On vehicles without the illuminated entry system, the courtesy lamps will turn OFF immediately when the door is closed.