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Jerry
Jerry, Master Mechanic
Category: Dodge
Satisfied Customers: 1754
Experience:  ASE Master tech, 30 years exp. troubleshooter, driveability tech
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I have a 2005 Dodge Ram 2500, my marker and dome light will

Customer Question

I have a 2005 Dodge Ram 2500, my marker and dome light will not come on unless the key is on, I know that the marker lights should turn on when you turn the light switch on but they won't unless the key is on, all this just happened
JA: Is the car in "Park" or "Neutral?" Do you know if your car has a "wheel lock" feature?
Customer: it's not a car it's a pickup
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: didn't know where to start
JA: Anything else you think the mechanic should know?
Customer: My alarm stopped working also
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Dodge Mechanic about your situation and then connect you two.
Submitted: 11 months ago.
Category: Dodge
Expert:  Chad Farhat replied 11 months ago.

Hi I 'm Chad ,Welcome To JustAnswer, I'm reviewing your question and I will be be posting a replay ASAP

Customer: replied 11 months ago.
Sounds good
Expert:  Chad Farhat replied 11 months ago.

the alarm stop working at same time right ?

what is the mileage on the truck ?

what engine you have in it ?

Please let me know

Thank You
Chad Farhat
ASE Certified Technician

Customer: replied 11 months ago.
98000 miles, 5.9 Cummins, alarm and door locks all at the same time
Customer: replied 11 months ago.
are you still there
Expert:  Chad Farhat replied 11 months ago.

ok great

let me look up the circuit for it and get back to you and tell where we need to start ?

Customer: replied 11 months ago.
ok
Expert:  Chad Farhat replied 11 months ago.

https://www.dropbox.com/s/rmgoy3jz8xe5z9k/File%20Jul%2011%2C%206%2059%2017%20PM.png?dl=0

https://www.dropbox.com/s/8aww6d48zrzdvom/File%20Jul%2011%2C%206%2059%2007%20PM.png?dl=0

https://www.dropbox.com/s/0zwzg7o39dnq4g4/File%20Jul%2011%2C%207%2003%2018%20PM.png?dl=0

is this the headlight switch you Have ?

Can you check the The RELAY PARK LAMP in this under hood fuse box and also fuse number #33 20 AMP & #34 10 AMP ? actualy if you have a test light i like to check all the fuse in the truck ,inside out ?

I have sent you the links for them

Please let me know

Thank You
Chad Farhat
ASE Certified Technician

Customer: replied 11 months ago.
I'll get back with you asap
Customer: replied 11 months ago.
33,34fuse have power only when the key is on, having trouble finding the park relay
Expert:  Chad Farhat replied 11 months ago.

the relay should be bottom left in that box

Customer: replied 11 months ago.
ok I'll check it
Expert:  Chad Farhat replied 11 months ago.

i dont know if you can see the diagram i sent you, but it shows is in there, you can actually zoom in and out at the diagram because i sent you a link to my dropbox for it

Customer: replied 11 months ago.
Ok, bottom left, I have power without the key being on
Expert:  Chad Farhat replied 11 months ago.

can pull out the headlight switch and unplug it ,do you still have power on that relay ?

Customer: replied 11 months ago.
It will take some time to remove that switch to unplug the wireing
Customer: replied 11 months ago.
shouldn't you be able to hear that relay click when you turn the lights on
Expert:  Chad Farhat replied 11 months ago.

yes, you should, if you dont hear it , it try replacing it with on like it in that box and try if it corrects the issue.?

Customer: replied 11 months ago.
I replaced it with all the relays that are in that fuse block and none would click, they might all be bad ,I don't know
Expert:  Chad Farhat replied 11 months ago.

no it cant be all the relays are bad , if not clicking, the headlight switch is your problem or there a control module called EMIC module for lighting

the module can be checked with a diagnostic scanner , the most likely cause will be the headlight switch, the EMIC module i seen it go out at high mileage trucks .

yours has 98k

Customer: replied 11 months ago.
I checked the relay and it clicks when the key is turned on
Customer: replied 11 months ago.
you still there
Expert:  Chad Farhat replied 11 months ago.

Then relay is good .

headlight switch or the EMIC module is the issue.

Customer: replied 11 months ago.
what is the emic module and where is it located
Expert:  Chad Farhat replied 11 months ago.

https://www.dropbox.com/s/p37tovvlmu9lc0z/File%20Jul%2011%2C%208%2017%2039%20PM.png?dl=0

on a diesel engine like yours that module is the underhood fuse box ,it is integrated in one unit .

on gas engine they have a separate emic module for it

Customer: replied 11 months ago.
Did you give up
Expert:  Chad Farhat replied 11 months ago.

excuse me

Customer: replied 11 months ago.
Thanks for your help
Expert:  Chad Farhat replied 11 months ago.

will opt out if you feel that way, and let another expert help you