Body Control Module

[1BadBowtie]

Can anyone give me any information on whether a 98 GMC k1500 would have one of these and where it would be located?
Thanks.

 

[skylark]

It doesn't. The only 400's with a bcm were the 99-00 Denali and Escalade.

 

[1BadBowtie]

Okay. Thanks. I thought so I was just needing to double check.

 

[someotherguy]

Depends on what you want to call a BCM. 1998 GMT400's are the first year for Passlock antitheft in these trucks, and the TDM (theft deterrent module) is part of a small box under the dash that some will refer to as a BCM. I honestly don't know what other purpose that module serves, though.

It's in the area right next to the DRL diode module, black plastic box about a cig pack size, has a bright green harness socket.

Richard

 

[Supercharged111]

The other thing that throws me is the EVO steering. My EFILive Flashscan will display DTCs for it, but I don't see it in the engine tuning stuff. Has always made me wonder if there is some sort of BCM on these trucks.

 

[someotherguy]

Tough call but I'm betting it's not in that same module as that unit is 1998-up only; EVO came out in 1997 I believe? Memory getting fuzzy. With EVO you've got the device in the pump reservoir and the sensor on the column, other than that I don't know. You'd expect there to be some kind of module associated.

Richard

 

[Supercharged111]

Yeah both my 97 and 98 have it. I thought it was odd the truck would be able to throw a code for it.