Question about 2002 Mercury Mountaineer

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The door is closed right but it always says door ajar

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Check or replace the door switch. They are made to self adjust on initial install, and eventually adjust too far....

Posted on Aug 21, 2010

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Posted on Jan 02, 2017

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How to diagnose which door is causing the door ajar warning on dic for 08 pontiac g6 4cyl 4dr


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

Dec 26, 2016 | Pontiac Cars & Trucks

1 Answer

Door Ajar light always on but all doors and tailgate closed


One of the door ajar switches is bad or sticking ,very common ! You can try spraying the door latches with W-D 40 or something similar ! Work the latch a few times an see if it goes out .If it doesn't you'll need to replace the whole latch assembly !Does your vehicle show which door is malfunctioning ? Picture of little car on dash showing an open door !

Aug 27, 2015 | 2003 Lincoln Aviator

2 Answers

Hi I have a 2006 Lincoln navigator the air suspension pump will not turn on the vehicle dynamics module is not turning on the pump relay because in the pid data the drivers door says it is ajar when it is...


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 .

Jan 09, 2015 | 2006 Lincoln Navigator

2 Answers

Have 98windstar int.lites stay on


I would bet the door ajar light is always on as we'll? Typically the drivers front door ajar switch is the problem. The easiest

Aug 11, 2013 | 1998 Ford Explorer

1 Answer

My door ajar light goes on immediately after I turn my ignition off and doesn't always go off when I push the door button which is normally pressed in when the door closes. The interior light goes out when...


Could be a faulty switch or a wiring problem. A dealer or authorized repair shop can answer the question about what is wrong and provide a cost estimate to repair it.

Jun 29, 2017 | 2002 Subaru Forester

1 Answer

The dome light keeps going on and off while driving, the back tail gate seems to not always turn off when closed, it is very touchy why?


eather your door is ajar or your tailgate is ajar or one of the switches in the door is broken or loose

Mar 03, 2010 | 1994 Ford Aerostar Extended

1 Answer

The air suspension keeps failing and i have no shocks, the air conditioner does not work every single year. the running boards do not work. The door ajar is always on


THE DOOR AJAR SWITCH IS THE DOOR LATCH SPARY WITH PB BLASTER & THIS WILL UNSTICK DOOR AJAR SWITCH OPEN & CLOSE DOOR 10 TO 15 TIMES THEN RUNNING BOARDS WILL START WORKING AIR RIDE O WHAT FUN HAVE SEEN AIR PUMP GO BAD ALSO AIR LINES LEAK AT PUMP THERE IS ALSO A LEVEL SENSOR IN REAR OVER AXEL THEN THERE IS THE AIR SHOCKS [AIRBAGS]

Sep 29, 2009 | 2003 Lincoln Navigator

1 Answer

Door ajar light, drivers door


Its on the pillar, part of the main body, not the door itself. Usually close or under where thedoor latch meets the stricker. It may have a small rubber boot on it (They do go bad, and are fairly cheap)

Jun 29, 2009 | 2002 Mercury Mountaineer

1 Answer

Passenger door ajar


it sounds like a bad door switch, does the dome light stay on also? if so, it is a bad door switch.it is also possable the switch is adjustable and you can try each of them individualy by pushing in the tab in the door jam that looks like a "turkey timer" (but it is black)..good luck, marty

Jun 11, 2009 | 2005 Chevrolet Uplander

2 Answers

"DOOR AJAR" Light Always On... Even with all doors shut... As a result the dome light is always on and "DOOR AJAR" shows up instead of the electronic speedomter so it can be seen how fast the vehicle is...


spray some lubricant (wd40 etc.) into the lock mechanism on the doors .. the switch may be jamming up ..

The front door entry system contains a latch that is fastened to the inside of the door frame and is controlled by the exterior and interior door handles. The latch contains a door ajar switch and a door lock actuator. The front doors can be locked/unlocked by the remote keyless entry (RKE) transmitter, the RKE keypad, the door lock control switch or the door lock cylinder .

Feb 11, 2009 | 2005 Ford F-150

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