Door ajar alrm continues after doors are closed.

i replaced drivers door adjar switch ,door adjar light still on????? one of the other door ajar switch is bad . Your best bet , take it to a qualified repair shop that has the diagnostic tools an knowledge to diagnose the problem . Not just guess an replace parts .Factory or professional scanner needed
DDM Diagnostic Trouble Code (DTC) Index
DTC Description DTC Caused By Action B1322 Door Ajar LF Circuit-Short to Ground DDM GO to Pinpoint Test B . B1342 ECU-Defective DDM REFER to Section 419-10 . B1566 RF, LR, RR Door Ajar Circuits Short to Ground DDM GO to Pinpoint Test B . For a complete listing of all DDM DTCs, GO to Section 419-10 .
Driver door also has control module DDM - driver door module .

• The interior lamps stay on continuously

• Circuitry.
• Switches.
• Driver door module (DDM).
• Lighting control module (LCM).

• GO to Pinpoint Test B .

Ford Factory service repair info. pin point test .

PINPOINT TEST B: THE INTERIOR LAMPS STAY ON CONTINUOUSLY Test Step Result / Action to Take B1 USE THE RECORDED RESULTS FROM LCM SELF-TEST

• Use the recorded results from LCM self-test.
• Are any DTCs recorded?

Yes
DTC B1688, GO to B13 .

DTC 1342, GO to B15 .

For all other DTCs, REFER to Section 419-10 .

No
GO to B2 . B2 USE THE RECORDED RESULTS FROM DDM SELF-TEST

• Use the recorded results from DDM self-test.
• Are any DTCs recorded?

Yes
DTC B1322, GO to B3 .

DTC B1566, GO to B4 .

No
GO to B3 . B3 CHECK THE DRIVER DOOR AJAR INPUT - MONITOR THE DDM PID D_DR_DD

• Monitor the DDM PID D_DR_DD while opening and closing the driver door.
• Does the DDM PID value agree with the switch positions?

Yes
GO to B4 .

No
GO to B10 . B4 CHECK THE PASSENGER DOOR AJAR INPUT - MONITOR THE DDM PID P_DR_DD

• Monitor the DDM PID P_DR_DD while opening and closing the LR, RF, and RR doors.
• Do the DDM PID values agree with the switch positions?

Yes
GO to B12 .

No
GO to B5 . B5 CHECK THE RF, RR, AND LR DOOR AJAR SWITCHES - MONITOR THE DDM PID P_DR_DD

• Key in OFF position.
• Disconnect door ajar switches C602a, C715, and C820a.
• Key in ON position.
• Monitor the DDM PID P_DR_DD.
• Does the DDM PID indicate AJAR?

Yes
GO to B9 .

No
GO to B6 . B6 CHECK THE RF DOOR AJAR SWITCH - MONITOR THE DDM PID P_DR_DD

• Key in OFF position.
• Connect: RF Door Ajar Switch.
• Close the RF door.
• Key in ON position.
• Monitor the DDM PID P_DR_DD.
• Does the DDM PID indicate AJAR?

Yes
INSTALL a new RF door ajar switch. TEST the system for normal operation.

No
GO to B7 . B7 CHECK THE RR DOOR AJAR SWITCH - MONITOR THE DDM PID P_DR_DD

• Key in OFF position.
• Connect: RR Door Ajar Switch.
• Close the RR door.
• Key in ON position.
• Monitor the DDM PID P_DR_DD.
• Does the DDM PID indicate AJAR?

Yes
INSTALL a new RR door ajar switch. TEST the system for normal operation.

No
GO to B8 . B8 CHECK THE LR DOOR AJAR SWITCH - MONITOR THE DDM PID P_DR_DD

• Key in OFF position.
• Connect: LR Door Ajar Switch.
• Close the LR door.
• Key in ON position.
• Monitor the DDM PID P_DR_DD.
• Does the DDM PID indicate AJAR?

Yes
INSTALL a new LR door ajar switch. TEST the system for normal operation.

No
GO to B16 . B9 CHECK CIRCUIT 627 (BK/OG) FOR SHORT TO GROUND

• Key in OFF position.
• Disconnect: DDM C501b.
• Measure the resistance between DDM C501b pin 6, circuit 627 (BK/OG), and ground.
• Is the resistance greater than 10,000 ohms?

Yes
GO to B16 .

No
REPAIR circuit 627 (BK/OG). TEST the system for normal operation. B10 CHECK THE DRIVER DOOR AJAR SWITCH - MONITOR THE DDM D_DR_DD

• Disconnect: Driver Door Ajar Switch C526a.
• Close the driver door.
• Key in ON position.
• Monitor the DDM PID D_DR_DD.
• Does the DDM PID indicate AJAR?

Yes
GO to B11 .

No
INSTALL a new driver door ajar switch. TEST the system for normal operation. B11 CHECK CIRCUIT 867 (DB) FOR OPEN

• Key in OFF position.
• Disconnect: DDM C501b.
• Measure the resistance between DDM C501b pin 5, and driver door ajar switch C526a, circuit 867 (DB).
• Is the resistance less than 5 ohms?

Yes
GO to B16 .

No
REPAIR open in circuit 867 (DB). TEST the system for normal operation. B12 CHECK CIRCUIT 53 (BK/LB) FOR SHORT TO BATTERY VOLTAGE

• Key in OFF position.
• Disconnect: LCM C2145c.
• Key in ON position.
• Measure the voltage between LCM C2145c pin 11, circuit 53 (BK/LB), and ground.
• Is the voltage greater than 10 volts?

Yes
REPAIR circuit 53 (BK/LB). TEST the system for normal operation.

No
GO to B15 . B13 CHECK THE DOME LAMP INPUT - MONITOR THE LCM PID DOMESW

• Monitor the LCM PID DOMESW while pressing and releasing the dome lamp switch.
• Does the LCM PID value agree with the switch positions?

Yes
GO to B15 .

No
GO to B14 . B14 CHECK THE HEADLAMP SWITCH - MONITOR THE LCM PID DOMESW

• Key in OFF position.
• Disconnect: Headlamp Switch.
• Monitor the LCM PID DOMESW.
• Does the LCM PID value indicate OFF?

Yes
INSTALL a new headlamp switch. REFER to Section 417-01 . TEST the system for normal operation.

No
REPAIR circuit 1034 (BK/WH). TEST the system for normal operation. B15 CHECK FOR CORRECT LCM OPERATION

• Disconnect all LCM connectors.
• Check for:
  • corrosion
  • pushed-out pins
• Connect all LCM connectors and make sure they seat correctly.
• Operate the system and verify the concern is still present.
• Is the concern still present?

Yes
INSTALL a new LCM. REFER to Section 419-10 .

CARRY OUT DATA LINK DIAGNOSTIC test.

No
The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test. B16 CHECK FOR CORRECT DDM OPERATION

• Disconnect all DDM connectors.
• Check for:
  • corrosion
  • pushed-out pins
• Connect all DDM connectors and make sure they seat correctly.
• Operate the system and verify the concern is still present.
• Is the concern still present?

Yes
INSTALL a new DDM. REFER to Section 419-10 .

CARRY OUT DATA LINK DIAGNOSTIC test.

No
The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.

It should tell you which one .
Driver Door Ajar Malfunction
Passenger Door Ajar Malfunction
If not a scan tool would be the best way.
Ignition ON, observe the scan tool Driver Door Ajar Sw parameter while opening and closing the driver door. The parameter should change between Door Closed and Door Ajar
? If the parameter does not change, refer to Driver Door Ajar Malfunction.
With the passenger doors closed, observe the scan tool Door Ajar Switch parameter while opening and closing each door. The parameter should change between Door Closed and Door Ajar.
? If the parameter does not change, refer to Passenger Door Ajar Malfunction

Ignition OFF, disconnect the harness connector at the driver door latch.
Test for less than 5 ohms between the ground circuit terminal 8 and ground.
? If greater than the specified range, test the ground circuit for an open/high resistance.
Ignition ON, verify the scan tool Driver Door Ajar Sw parameter is Door Closed.
? If not the specified value, test the signal circuit terminal 6 for a short to ground. If the circuit tests normal, replace the BCM.
Install a 3A fused jumper wire between the signal circuit terminal 6 and the ground circuit terminal 8. Verify the scan tool Driver Door Ajar Sw parameter is Door Ajar.
? If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM.
If all circuits test normal, test or replace the driver door latch

Hi,
have you looked @ that door's 'sensor'? There should be a button somewhere on the door , the door frame or the body that is activated when the door is opened closed.

Per this LINK the button is a part of the hinge:
Thread Door closed opened sensor

Hey Jeff, any U- codes stored in any modules ?
U1900 Missing CAN message(s) Door(s) ajar, PRNDL, 4x4, instrument cluster (IC), running boards, vehicle speed REFER to Section 418-00 . U2023 Invalid CAN message(s) Door(s) ajar, PRNDL, 4x4, instrument cluster (IC), running boards, vehicle speed REFER to Section 418-00 .
L4 CHECK THE VDM FOR DOOR AJAR INPUT

• Key in ON position.
• Monitor VDM door position status PID.
• Close all doors, liftgate, liftgate glass and power running boards.
• While observing the diagnostic tool, open and close one door.
• Does the door status PID change between CLOSED and AJAR states?

When you open an close the driver door you have no PID change ,right ?
L4 CHECK THE VDM FOR DOOR AJAR INPUT

• Key in ON position.
• Monitor VDM door position status PID.
• Close all doors, liftgate, liftgate glass and power running boards.
• While observing the diagnostic tool, open and close one door.
• Does the door status PID change between CLOSED and AJAR states?

The door ajar input is an input to the Vehicle Security Module , then transmitted over the bus ! You'll have to find a diagram for the med. speed CAN data bus .

clean and lub your door closing mech.

Has car been damaged ? A pushbutton in a door well is likely problem. Door is not pushing the button in far enough to open it's contacts therefore, computer reads it as door ajar.
Try taping small piece of plastic or metal (one door at a time) in the area that contacts the pushbutton, Then close all doors. Continue thru all doors to find the guilty one.
It's possible that the pushbutton switches may not be visible (mounted out of sight) and use some sort of lever to actuate.

What's your question ? Tailgate ajar light lit on the instrument cluster ?
The Body Control Module (BCM) monitors the lift glass and the cargo door ajar switches. When the switch closes, the path to ground is completed, and the BCM sends a class 2 message to the instrument cluster to display the CARGO DOOR AJAR message.There are two ajar switches for the rear door ,a left an a right ,the third switch is for the lift glass ajar switch . All three of these switches splice pack SP410 At ground point G410

(Shouldn't have any readings when door(s) and/or window closed.) It's the opposite . switches are open with door closed , G410
In the Body Harness, Behind the RR quarter trim panel near the D-Pillar
It turns out it has nothing to do with rear door. Something about drivers door actuator. NO IT DOESN"T !!!!

Normal Operation When any door or the liftgate is opened, the ajar switch provides a ground signal to the smart junction box (SJB). When the door or liftgate is closed, the ajar switch opens, removing the ground signal. The SJB uses the multiple inputs from the ajar switches to determine whether the doors or the liftgate are in the open or closed position. The SJB then provides a message to the instrument cluster over the communication network. The message center uses this information to display the door/liftgate ajar message.

I suspect your door switch is not closing all the way.

The door switch is stuck on or the wire is shorted to ground.

Do you know anything about automotive electronics ?
All courtesy lamps are controlled by the generic electronic module (GEM).
The four contacts are not switches , the part you want to replace is the door ajar switch . The door ajar switch is inside the door part of the lock actuator . Those contacts just allow circuit continuity when the door is closed , when you open the door continuity is broken or open . The GEM now know the door is open an will now turn on the dome lights . The door ajar switches stick , try spraying WD-40 into the door latch ,open an closing the latch . If this doesn't fix the problem you will need to take the inside door trim panel off and replace the ajar switch .