I disconnected the baterries for about 30min and when I reconnected them, the truck wont start. It cranks so the batteries arent dead or anything.

When I connect the smarty, it gives me an error code(#112 Wrong communication). Not an engine trouble code.

Please help I have class in an hour.

Thanks

 

Connected back up good, right? Grounds good?

 

everything is connected correctly

 

Sounds ECM related.

What was your reason for having it disconnected?

 

installing a subwoofer amplifier

 

I had the same amplifier on before but had disconnected it for two months and was reconnecting it today.

 

Error Code 112 - Communication Failure Between Display ECU (795) and Engine ECU

 

What do I have to do to fix it?

 

Hang on, I'm searching and thinking.

Common sense (and retarded personal experience) is telling me that you have something unhooked or have blown a main fuse in the engine bay.

Take a quick look at some of your fuses, only takes a minute or two to pull them.

 

I was just gonna run out and check the fuses, thanks for the help. I will be right back.

 

I've got access to a service manual, just in case!!

 

Double check the IOD fuse.

 

Well, you're late for class,................ what's the word?

 

I just checked all the fuses in the box and they were all fine, I replaced the Ign switch fuse with a new one just in case.

What is the IOD fuse?

 

Fuse #27 IOD #1 40A green or #28 IOD #2 (audio) 10A red