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HELP MY DOOR AJAR LIGHT STAYS ON SOMETIMES AND THEN SOMETIMES IT DOES'NT IM GOING CRAZY WITH THIS PROBLEM please help me i HAVE A 98 WINDSTAR gl tHX IF ANYONE CAN HELP ME
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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 .
The BCM, the door switches, and the liftgate module (LGM) (if equipped with power liftgate) communicate through the GMLAN serial data circuit for the lamp illumination commands of the doors, liftgate, and liftglass open/ajar switch signals. The LGM receives a ground signal from the pawl switch, ratchet switch, and liftglass ajar switch that are located within the liftgate latch and liftglass latch. For all vehicles, the left and right rear door latch switches are both on one circuit that is also an input to the BCM.
If the vehicle has a manual liftgate, there is an input circuit from the liftgate latch switch and liftglass latch switch directly to the BCM.
The left and right front door courtesy lamps receive voltage and ground from the driver door switch and the passenger door switch respectively. The remaining courtesy lamps are controlled and receive voltage through the BCM from the CTSY fuse in the instrument panel fuse block.
DTC B2555 01: Passenger Compartment Lamp Control Circuit Short to Battery
DTC B2555 02: Passenger Compartment Lamp Control Circuit Short to Ground
Have someone stand at liftgate and press the switch in. If the warning goes off, then your switch just needs adjusting or the small flat block that acts like your partners finger is missing or misaligned. The door hinge pins should not be a problem unless there is damage to the area or a teenager was using the door as a tarzan swing. The BCM is a possibility (rare), but it is much more likely a contact problem behind the switch - ie. a loose connection, chaffed wire or short. Good luck.
try rolling down a window or leaving a door open, shut liftgate hard. see if it still shows liftgate ajar. on my explorer the seals in door and windows shut so tightly that it was almost impossible to get the gate closed completely with doors closed and windows up.
if this doesn't help then you might need a new switch on it.
sounds like you have a door ajar switch bad on one of the doors. start vehicle and close all doors and liftgate make sore the back glass on liftgate is closed. now look for a door ajar alert. if the alert is thare then one of the door ajar switches is bad. if this dont help then open each door and spray a lubricant called PB BLASTER in the latch assembley on each door then open and close each door about 10 to 15 times, this will usally free up the switch that is stuck.PB BLASTER is available at your local auto parts store. soak the latches pretty good when doing this as to make sure it reaches the switch.the fuse to the running board lights is under hood behind the power distrabution box. it should have a cover on it , thare are about 6 fuses in this box the one to the running boards is a 10 amp color red just pull each red fuse till lights go out.
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