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sprinkles08
sprinkles08, Chrysler/Dodge/Jeep master tech
Category: Dodge
Satisfied Customers: 21806
Experience:  ASE Master and Advanced Certified, Chrysler/Dodge/Jeep Master Certified, Trans and Hybrid Specialist
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I have a 2003 dodge 3500 w 5.7 hemi i have electical

Customer Question

i have a 2003 dodge 3500 w 5.7 hemi i have electical problems. all happen at same time radio does not work and no led time . cant change heater from floor to defrost. inter. lights only come on if key is on. have a red light on insterment panel that indicates security system which truck does not have
Submitted: 1 year ago.
Category: Dodge
Expert:  sprinkles08 replied 1 year ago.

Hello and welcome to Justanswer!

The radio and interior light issue can be caused by no power on the IOD circuit. If you have power locks then the locks also shouldn't work if there is no power on the IOD circuit.

The security light coming on when it shouldn't is usually the result of a dead battery. Does the truck actually start and run?

Are you able to control temperature or is the blower motor the only thing that can be controlled?

Customer: replied 1 year ago.
i drive the truck all the time. the air comes out dash vent and cannot change blower fuctions work and so does temp controls. i dont know if i told you but if you turn the ing on the int lights come on. the headlights wont come on until the ing is on
Expert:  sprinkles08 replied 1 year ago.

Do you have the VIN?

When are you seeing the security light come on?

Customer: replied 1 year ago.
the light comes on when i shut off truck. vin is 3d3ma46d23g783765
Expert:  sprinkles08 replied 1 year ago.

Is the light staying on solid or flashing after the doors are locked?

Customer: replied 1 year ago.
stays on untill you turn key on
Expert:  sprinkles08 replied 1 year ago.

Did that problem start after a repair, jump start, etc?

Customer: replied 1 year ago.
not that i can remember it has been going on for about 4 mo and i use it every day . there has been no repairs on it ex. lof tires
Expert:  sprinkles08 replied 1 year ago.

Has the IOD fuse been checked?

Customer: replied 1 year ago.
I check all fuses under hood with test light even ones that had safety on them I think iod fuse was #51
Expert:  sprinkles08 replied 1 year ago.

Have you checked the power and ground feeds at the radio?

Customer: replied 1 year ago.
No but I will when I get home
Expert:  sprinkles08 replied 1 year ago.

Great!

Customer: replied 1 year ago.
have power and ground
Expert:  sprinkles08 replied 1 year ago.

How many power feeds are present with the key on?

Customer: replied 1 year ago.
One
Expert:  sprinkles08 replied 1 year ago.

You're missing one then. Is it the pink wire or the brown/red that does have power?

Customer: replied 1 year ago.
brown red
Expert:  sprinkles08 replied 1 year ago.

You're missing power on the IOD circuit as I suspected.

Are you able to remove the integrated power module for testing?

Customer: replied 1 year ago.
Two things I need to know where modu. Is at and I have to go out of town so I won't be able to do any thing until Mon hi
Expert:  sprinkles08 replied 1 year ago.

The integrated power module is the assembly under the hood that contains the fuses, relays, and front control module.