enosez

First I apologize if this has been discussed. I searched and didn't find much info. I have an 03 2500hd with an 8.1. Gauges would stop working working intermittently but now they stopped completely. When searching I read about grounds. Where would these grounds be? If not the grounds, it sounds like the cluster needs to be rebuilt. Any recommendations on who?

So I wanted to give an update.... I ended up bringing the truck into the dealer. They found that the connector to the fuel pump was replaced by the previous owner and they only twisted the wires together and used tape. The dealer replaced the connector and made proper splices. Truck starts, runs and drives. So far so good.

Thanks for the help. Finally had some time to work on it. The yellow wire has nothing. The red wire with white stripe has power with key in on position I checked for fuel at the fuel rail and had none. I changed the fuel filter as I don’t know when it was changed last. Checked fuel rail again and nothing but a dribble. I checked to make sure all relays were seated correctly and still nothing. The security light is back on solid.

Checked today with a mt2500 scanner. Here are the codes I got on the engine P1518 on the BCM current code was B2948 with the following history codes: B0951. B1440. B2600. B2615. B2625. B2948. B2957. B2958. B3031. U1000 U1305. U1016. U1024 on the IPV history codes U1016. U1024. U1000 i was able to clear all codes and the security light went out. When I try to start the truck it cranks but does not start. When i chexk on the scanner in BCM mode it’s showing Passlock power on. Run/crank on and shows key in ignition. Still wont start. Do I need to do key relearn now or is it something else?

I put the battery charger on the battery so I dont kill the battery. I tried doing it with 10 minute intervals (as per timer) I tried with longer intervals. I even tried with key on until the security light goes out. The light never goes out. How long is too long with the key in the on position waiting for the light to go out? (And does it matter that the engine tries to start (Turns over)) Not sure if I'm doing something wrong or if Im just f****d and need to go to a shop now.

Thanks Carnau. I did put it back to the way it was and tried the procedure you posted. Still nothing. The security light will not go out. I've been researching and there isnt a lot of info out there that is useful to me. (hence the reason i connected those two wires) I was thinking of leaving the battery disconnected over night but will this cause the BCM to need to be re-flashed or programmed?

Ill try to keep this brief. 2003 Silverado 2500HD 8.1L Crew Cab Just bought truck about a month ago. Truck was running/driving fine until about two weeks ago. Went to start truck and it would sputter and die. Tried again and it would try and run and then die. (acted like it would run out of gas) Let truck sit overnight and everything was fine the next day. (Because the situation was new to me, I did not pay attention to security light) I did find it odd that the plastic on the column was only half on, so i assume the previous owner had some sort of problem here. Fast forward to yesterday. I was working on why the passenger seat (motorized) was not working. I checked the fuses and stupid me decided to pull each fuse and check it and put it back in. Truck started and ran and was able to park in the street. When i went out to run an errand later the truck experienced the same condition. Would not start. So now I pay attention to security light. It blinks and goes out. Truck still wont start. Check the web and I see I may need to relearn the pass key. Tried and it didnt work. Tried the 10 minute procedure numerous times.Now the truck would only crank. It did not start. Before it was like it ran out of gas. So I try the bypass by connecting the yellow and black wire that are on the ignition key and try the re-learn process. NOTHING. Now the light just stays on constant. So I check with a scan tool and found P1631 and B2948. Now the scanner can clear these codes but we did not clear them until I checked here. So I came here looking for some advise and help.