Interior lights wont shut off

Principles of Operation
Interior Lighting The interior lighting is broken down into two groups: the courtesy lamps and the illuminated entry lamps. Both lighting features interact with the courtesy light arbitrator. The battery saver is also listed in this section.
Courtesy Lighting The courtesy lamps consist of the dome lamp and/or map lights. The courtesy lamps can be activated by the GEM using the panel dimmer switch, or by any ajar door. The courtesy lamps will shut off when the doors are closed and the illuminated entry feature is not active, or when the vehicle speed is greater than 8 kph (5 mph). The interior lamps will not be reactivated until the vehicle speed is less than 5 kph (3 mph) and a new door open warning lamp switch signal is received. The inputs are:

• ignition switch position

• driver door ajar switch

• front passenger door ajar switch

• rear left door ajar switch

• rear right door ajar switch

• vehicle speed switch (VSS)

The outputs are:

• battery saver relay

• interior lamp relay

courtesy light switch , is door ajar switch an it's part of the door lock actuator . Light on coming on ? Not going off ? The ajar switch is a input to the GEM module , fords BCM - body control module . The GEM will energize a relay to turn on the lights .
The GEM will illuminate the interior lamps when any door is open or ajar. The interior lamps are; the dome lamp, the rear cargo lamp, the door courtesy lamp and the side rail lamps. The courtesy lamps will shut off when the doors are closed and the illuminated entry feature is not active or when the vehicle speed is greater than 5 mph (8 km/h). The interior lamps will not be reactivated until the vehicle speed is less than 3 mph (5 km/h) and a new door open warning lamp switch is received.
The GEM controls the interior lamps illuminated entry function by activating the interior lamp relay.
Mite be a good idea to have it check for DTC'S - diagnostic trouble codes .

B1322 Driver Door Ajar Circuit Short to Ground GEM GO to Pinpoint Test B . B1323 Door Ajar Lamp Circuit Failure GEM REFER to Section 413-01 . B1325 Door Ajar Lamp Circuit Short to Battery GEM REFER to Section 413-01 . B1330 Passenger Door Ajar Circuit Short to Ground GEM REFER to Section 417-02 . B1334 Decklid Ajar Rear Door Circuit Short to Ground GEM GO to Pinpoint Test C . B1338 Door Ajar RR Circuit Short to Ground

unhook your battery for 5 mins then hook it back up go to each door and open and close one at a time that way you know which door is having the problem once you find that out replace the door switch and problem fixed or just dont open that door.

Try spraying wd40 into each door latch. Do it one at a time then open and close the door about a dozen times spray some more in there after about 6 open and closes. Do this with each door and even the hatch. This should clear ya right up.

Hi

Make sure all door switches are functioning properly. See that each switch pushes in and out, without sticking.

If the door ajar indicator on the cluster is also on, might want to soak the door latch with WD-40.
The door ajar and interior lights are turned on when the door latch is open. Some times the switch gets stuck, and a good soaking of WD-40 will release it. The door latch and the switch for the door are the same unit.

it might have a door ajar switch always open, or might have a headlamp switch problem, inspect headlamp switch and interior lamp switch next to it, might be on the on position

is the door ajar light on sometimes also when driving? I had a similar problem with the light staying on. I determined that it was the passenger front door latch sticking. I opened the door, then took a screwdriver to push the latch shut on the door jamb. (Make the truck think the door is shut even though it is open). Then lubricate that jamb and pull the handle open to open the door. Keep doing this (closing with screwdriver and opening with handle) until the latch works freely. This took care of my light and door ajar problem.

If I am not mistaken, the plunger is located in the door with the latch. Most of the time you can just pull the door panel off and adjust the switch. After opening and closing the door, they get knocked out of adjustment. I sincerely hope that this helped you. Take care and best wishes.
Bryon

sounds like door switch is bad