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rsdunphy
05-16-2018, 01:51 PM
Good day,

Need some help from the experts. I am having electrical problems with my 04 Marauder. When putting the car in drive, the door locks will not lock, the interior floor lights will not go out, also the overhead light. Also am unable to set the alarm, it will go off within minutes of locking car/alarm with key fob. have changed battery in fob. Also, my local shop has been looking at the problem and replaced the door mechanism that told the car if the door was open. No joy there. Any help would be greatly appreciated.

1RAREMM
RubberCtyRauder
05-16-2018, 01:59 PM
check grounds and I suspect aftermarket alarm issue, short in wiring? check wiring harness behind driver side cam cover, it can rub on a stud into harness
fastblackmerc
05-16-2018, 02:15 PM
What do you mean by door mechanism?

There is a switch on the door lock that signals when the door is open or closed.

Could also be the aftermarket alarm as mentioned.
Turbov6Bryan
05-16-2018, 04:35 PM
Lights staying on inside the car is indicator that the alarm is seeing one of the doors open, thats why the alarm is going off.

I would check the wiring of the alarm, see where it ties into the door switches that turn on the interior lights.

I would also remove the alarm system, my personal choice.
RF Overlord
05-16-2018, 05:35 PM
Another vote for an alarm wiring issue...
rsdunphy
05-17-2018, 10:49 AM
What do you mean by door mechanism?

There is a switch on the door lock that signals when the door is open or closed.

Could also be the aftermarket alarm as mentioned.

The alarm is stock Mercury Marauder, the door mechanism is a "switch" that tells the car that the door is closed, like what you are describing.
rsdunphy
05-17-2018, 10:50 AM
Lights staying on inside the car is indicator that the alarm is seeing one of the doors open, thats why the alarm is going off.

I would check the wiring of the alarm, see where it ties into the door switches that turn on the interior lights.

I would also remove the alarm system, my personal choice.

ya, its stock mercury marauder alarm. It must be intermittant connection somewhere. I am able to lock the car via the interior door locks AFTER the car is shut off. Going back to shop in two weeks.
Zack
05-17-2018, 11:20 AM
One of the door switches are not working
tbone
05-17-2018, 11:32 AM
I had this issue some years ago. Bought the door switch and before I installed it the problem went away and never came back.
fastblackmerc
05-17-2018, 11:42 AM
ya, its stock mercury marauder alarm. It must be intermittant connection somewhere. I am able to lock the car via the interior door locks AFTER the car is shut off. Going back to shop in two weeks.

FYI... there is no "stock" Marauder alarm. It's either an aftermarket unit or a Ford unit that was installed at the dealership.
NorthShoreChiMM
05-17-2018, 12:34 PM
FYI... there is no "stock" Marauder alarm. It's either an aftermarket unit or a Ford unit that was installed at the dealership.

The red button on the key fob that sounds the alarm isn't factory?
justbob
05-17-2018, 05:29 PM
The red button on the key fob that sounds the alarm isn't factory?



That’s only panic button.


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RubberCtyRauder
05-17-2018, 05:52 PM
That’s only panic button.


Sent from my iPhone using Tapatalk

like when Joe has one cornered with a bottle of baby oil
TORINO
05-18-2018, 05:49 AM
One of mine started doing weird things with the door locks and I am blaming the keyless entry module. New one is $300
Turbov6Bryan
05-18-2018, 07:22 AM
I have a bunch of keyless key less modules for sale on eBay

I can sell them cheaper here if anyone is interested

https://www.ebay.com/itm/137-2003-2004-Mercury-Marauder-Grand-Marquis-crown-vic-Keyless-door-Entry-Module/302739834112?hash=item467cb345 00:g:bMcAAOSwslda-yz7

More items: https://www.ebay.com/sch/m.html?_odkw=&ul_noapp=true&_ssn=turbov6bryan&item=302738966219&_osacat=0&_from=R40&_trksid=p2046732.m570.l1313.TR 10.TRC1.A0.H0.Xmarauder.TRS1&_nkw=marauder&_sacat=0
rsdunphy
05-18-2018, 10:57 AM
check grounds and I suspect aftermarket alarm issue, short in wiring? check wiring harness behind driver side cam cover, it can rub on a stud into harness

I will check, thanky you!!
rsdunphy
05-18-2018, 10:58 AM
One of the door switches are not working

will check, thank you!!
rsdunphy
05-29-2018, 12:22 PM
Just to let all know whatit was. Was the RR passenger door sensor switch. Anit-theft great now. Also had ALL my lights go out on me. Turned out to be blown lighting control unit from really bad installation of HID lights and LED brake light bulbs. :( She is all just great now. Thank you all