Question about Mercury Cougar

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Sometimes my door ajar light stays on in the active check module and wont go offand last month i installed left and right new door switches

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Hi,

Have you used a scan tool to see which door is showing ajar when all are closed?

The only problem is there are 4 more sensors on the passenger and rear and liftgate doors. A scan tool would tell you which door is the concern. W/O it you will have to keep guessing. Sometimes soaking each latch down with wd40 will free up a stuck switch showing ajar when closed.

I would advise you to take the car to the Dealer. If you want to purchase the tool, You will need a IDS or NGS or WDS or a sophisticated aftermarket scan tool. The price for these start at about 500$.

In these Models, there are certain issue's with Modulator. But, again, i do not want you to guess as it is usually a more than an hour DIY and needs tools to perform this. The only user Fixable option i to change Door Switches which you already done!!

Let me know, if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Posted on Nov 13, 2009

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2005 Ford E350 Van Door locks & dome lights are going on & off on there own


Do you know anything about automotive electronic's ? Control modules ?
Vehicle Security Module
The vehicle security module receives inputs from the following:
  • Door ajar switches
  • Keyless entry keypad
  • Ignition switch
  • Remote keyless entry (RKE) transmitter
The vehicle security module uses these inputs to control an output signal to the instrument cluster which controls the battery saver relay and interior lamp relay. The battery saver relay and the interior lamp relay are internal to the instrument cluster, and are not replaceable. There could be a faulty switch input to the I/C - insturment cluster , causing the vehicle security module to activate the lock's an light's .
Interior Lighting Systems
The instrument cluster grounds the battery saver relay and interior lamp relay coils when any door ajar switch is opened, or the interior lamp (headlamp) switch is closed. The interior lamp relay then supplies voltage to the interior lamp circuit. Vehicle speed must be less than 24 km/h (15 mph) for the instrument cluster to ground the interior lamp relay. The interior lamps remain illuminated for up to 25 seconds after all doors are closed unless the instrument cluster receives an input from any of the following:
  • voltage from the ignition switch.
  • a vehicle speed signal.
  • input from the keyless entry keypad through the vehicle security module.
  • input from the RKE transmitter unlock or panic switch through
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Do you know what DTC'S - diagnostic trouble codes are ?
Could have DTC'S stored in the following Modules
Instrument Cluster Diagnostic Trouble Code (DTC) Index DTC Description Source Action B1320 Driver Door Ajar Circuit Open Instrument Cluster Go To Pinpoint Test C . B1328 Passenger Door Ajar Circuit Open Instrument Cluster Go To Pinpoint Test C . B1342 ECU is Defective Instrument Cluster CLEAR the DTCs. REPEAT the self test. If DTC B1342 is retrieved again, INSTALL a new instrument cluster. REFER to Section 413-01 . All Other DTCs - Instrument Cluster REFER to Section 419-10 .


Vehicle Security Module Diagnostic Trouble Code (DTC) Index DTC Description Source Action B1322 Driver Door Ajar Circuit Short to Ground Vehicle Security Module Go To Pinpoint Test C . B1330 Passenger Door Ajar Circuit Short to Ground Vehicle Security Module Go To Pinpoint Test C . B1338 Door Ajar RR Circuit Short to Ground Vehicle Security Module Go To Pinpoint Test C . B1342 ECU is Defective Vehicle Security Module CLEAR the DTCs. REPEAT the self test. If DTC B1342 is retrieved again, INSTALL a new vehicle security module. REFER to Section 419-10 . B1574 Door Ajar LR Circuit Short to Ground Vehicle Security Module Go To Pinpoint Test C . All Other DTCs - Vehicle Security Module REFER to Section 419-10 .
Your best bet mite be to take to a qualified repair shop .

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1 Answer

2007 escalade 2 front doors wont trigger dome light but rear 2 doors do? Also killing battery on vehicle, I suspect maybe radio stays on due to vehicle not knowing driver left vehicle.


Door ajar switches maybe bad . Take the door panel off ,find a wiring diagram an test the circuit . Or you could check at the BCM ,would still need wiring diagram so you know what wire is what . Do you know how to test electrical circuits using a DVOM - digital volt ohm meter ? Could also take it to a qualified repair shop an have the BCM checked for DTC'S - diagnostic trouble codes .
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DTC B2555 01: Passenger Compartment Lamp Control Circuit Short to Battery
DTC B2555 02: Passenger Compartment Lamp Control Circuit Short to Ground

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Where is the courtesy light switch in the drivers door on a 1998 Navigator


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

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Is your 'door ajar' or 'dome light' staying on? Forum members suggest various methods that they fixed their issue. The methods include:
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1 Answer

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The door actuator ,door ajar switch has nothing to do with the Gear Indicator Light on Cluster . Did you have the BCM programmed ? Can't just replace this without programming . Having the BCM check for DTC'S - diagnostic trouble codes should have been the first step in the diagnostic's for this problem an testing power an grounds . Is the door ajar light lit on the insturment cluster ? If not ,it's not a door actuator or door ajar switch .

Important: Perform new BCM setup when you replace Body Control Module (BCM). Refer to Body Control Module (BCM) Programming/RPO Configuration .
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1 Answer

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Who looked at it ? Dealer ? Did the place's you had look at the vehicle hook up a factory scan tool an view data to door module's an the BCM ? Door ajar is a fuction of the door modules an the BCM - body control module . One of these modules is seeing an input that makes it think door is open .
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How can I fix a door adjar error on a 1999 Lincoln Continental? When the drivers door is shut, the warning comes on and the dome lights remain on. I don't want to spend money to replace the sensor, but can...


I suspect you have a bad door ajar switch on one of your doors.

The switch is on the door latch. try pushing each door in with your hand one at a time and see if the warning goes away.
The Lighting control module is $500 and controls a lot of the vehicle functions. It is part of the headlamp switch. It has to be configured by the dealer with his NGS tester before it will work. Ebay has them cheap sometimes. Only buy Continental LCM for your model year.



info
When at least one door is ajar and the key is in the RUN position, the door ajar cluster lamp is activated and remains on until all doors are closed. A warning tone will sound once any time the key is in the ignition switch and any door is open.
-----------------------------------
Visual Inspection Chart Mechanical Electrical
  • Door ajar switches.
  • Fuse junction panel fuse 28 (10A), 4 (10A), 5 (10A).
  • Power distribution box fuse 6 (60A).
  • Circuitry.
  • Damaged or corroded connectors.
  • Lighting control module (LCM)
  • Driver door module (DDM).
  • Virtual image cluster (VIC).
  • Restraint control module (RCM).
  • Low tire pressure module.

------------------------------------------------------------
  • The Door Ajar Chime Does Not Operate Properly
  • LCM.
  • Driver door ajar switch.
  • Passenger door ajar switches.
  • Key warning switch.
  • Circuitry.

-------------------------------------------------------------
remove the door trim panel to access the door ajar switch.

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Remove the door open warning switch by turning it counterclockwise.
----------------------------------------------------------------------------
Trim Panel —Front Door Removal
  1. Remove the screw cover.
  1. Remove the screws.
  1. Remove the front door trim panel (23942) from the door.
  1. Disconnect the electrical connectors and remove the front door trim panel.
Installation
  1. Follow the removal procedure in reverse order.

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Is it an old van? Can you see on the door frame a switch does it come out when the door is opened (push in and out a few times). 3 position switch on always / off always and door switch?

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