I need help bad. I just got my 04 Ram 1500 2 weeks ago. Today I went to install my subwoofer there is already aftermarket headunit in there. So I disconnect the battery and do everything I have to. Well once everything is re-installed I go and turn my truck on and nothing. The radio does not come on at all. I checked everything and its all back to normal. I made sure of it. Well I also found that my power locks are not working and the climate control is only lighting up on one side now. I checked all the fused under the hood and all the clear ones are fine not blown at all. And finally there is a red light that now flashes only for a second when I go to acc or to turn the truck on. Please help. Is this a ground problem? I really need to get this fixed ASAP

 

last year my battery suddenly went bad, and the only thing the truck did was to blink that red light on the dash that never, ever came on before. My battery sitting alone was reading over 12.5 volts, but once I keyed the ignition on, the battery voltage dropped below 6 across the terminals, and even lower if I checked from positive post to an engine ground.
If you can, bring your battery to an auto parts store to get it load tested, most will do this for free. If the battery is good then it's likely a battery cable that's loose.

Like I said my battery had 2 dead cells when I brought it to advance auto. It ran fine just 2 hours before, no sign of a weak battery at all, then it just gave up. I guess the plates inside the battery started to corrode and broke free.

 

Well the truck runs fine. It will start up fine and drive fine its just I have no radio and half the climate control is very dime. Heat and everything still works, but once I take the key completely out I cant use the power locks. Its almost as if the truck is not getting any power once I pull the key. Where as before I was able to lock the doors with the keys in my hand. Someone please help. this really sucks. I just got the truck and now this happens. Driving without a radio really blows.

 

Check fuse #51. Called the IOD fuse..Controls
Cluster (CCN)
Diagnostic Connector
Map Lamps
Glove Box Lamp
Courtesy Lamps
Radio
Underhood Lamp

 

Ya Ive been searching online and found that info also. I was able to pull it up, but was unable to get it out so I could look at it. I found some more info online of how to pull it out and I am about to go try that now. I will let you guys know. I really hope it is just the fuse, cuz this sucks. Thanks for the quick replies. I will let you guys know if it was the fuse blown or not

 

Just went out and was able to pull the IOD fuse. Sure enough it was blown. Thanks for the help guys. You guys really are great.

 

good thing it was just a fuse, I guess I misunderstood your first post. Now that you have a good fuse is that security light still on?

 

As for the AC climate controls lit on only on one side, thats just a bad bulb and easy to replace

I just replaced all 3 of mine for $6

 

Where is this fuse, cuz I think I just blew mine too. Was working on swapping the overhead bulbs to led and all of a sudden the lights went out and I got a no fuse warning on the cluster. I hope this is all it is. Now I'm worried about doing the rest of the led's and causing more problems. Guess I should have disconnected the battery, but it wanted to be able to check the lights before I put everything back together.

 

Found it, and it was blown.