i thought the average draw with the key off is 100 mA. Well I have a draw at 600 mA. It's a brand new battery. It got weak after sitting for 3 days. Unless i pluck the fuse, the battery will get week after sitting a few days.

 

I can't seem to figure out what IPC is

 

Instrument Panel Cluster (speedo, odo, tach, shift indicator)

 

Unplug the cluster itself... You'll see if there's a short in the wiring or the cluster... I think.

 

OK I know that this thread was done in april of this year but I also have a battery drain problem. after reading all of these replys I think Wolfpack may have hit on the problem. he asked if the door switch was working or not. Now my problem is a drain caused by the digital clock staying on when the key is turned off. The interior lights work properly, but if I leave the car setting for a week it will have a dead battery. If I pull the fuse that controls the clock I also loose my radio and have to reprogram all of the stations when I put the fuse back in. where is the relay or switch that controls the power to the clock when the key is off

 

what's the year make and model of your truck? mine was a 99 and it didn't lose the radio station settings when i pulled my fuse, however i did always have to reset the time. my problem ended up being the guage cluster. it didn't go into sleep mode when the truck was turned off. i threw another cluster in and everything was fine.

 

Same here. It was drawing on my battery so I disconnected it. I just keep a flashlight in the door.