I bought a 04 1500 4 door (4.7 auto) the other day with what I believed as a fcm problem. When running the headlamps flash, the horn blows, the abs light is on, the red light flashes on dash all the time. The fcm and the pdc are both new. I also had both from another truck I parted out and all have the same outcome. it came with five black keys and two key fobs. the key fobs dont work either. Im wondering if there is a security problem. there isnt any codes.

Thanks in advance!

 

Hmm what red light? The E brake? Im guessing you checked everything before you put it in to see if it would match up, even though this is the 2nd FCM?

 

the light to the bottom right of the cluster. I bought the truck with these parts installed. (pdc and fcm new) I had another pdc and fcm laying around from a truck i parted out. I checked the cluster codes and I get:
81 00
a3 03
a8 00
ad 76
ae 03
af 00
00 00

from my reading the fcm doesnt need flashing to work. any other ideas?

 

Have you looked to see what all the codes mean? There are a number of list floating around here.

And for the light at the bottom of the cluster to the right is ETC, i feel stupid because i just learned that the 4.7 dosent have ETC until 08 so im not sure on that