Quote Originally Posted by happygtu View Post
After disconnecting the main sensor in the Big Barn Door, and this should have fixed your problem permanently as it usually is the culprit. You may need to join the wires together to stop the interior lights operating. Check the main door switch with a multimeter to see if if a closed contact with the door shut, or if it is an open contact with the door shut...then either join the wires or tape them up separate as required.

Mic
I have checked the driver's door switch thru a multi-meter, the wire having the negative terminal is in closed circuit with the body of the GU. This should not be the case since all the doors are closed. I conclude that the negative line is grounded. I just can't find the point of contact at he moment. I got to find where the relay switch also, it could be malfunctioning.