[heavy_chevy29]

anyone ever run into this code. i had it cleared but it came right back on. i cleaned the ground on the frame rail and same thing. i could not clear it. i checked the fuse and that is ok. anyone have a wiring schematic or know were i should test for power. i pulled the module off the pump and ohmed out the pump. pump seems to be ok. i pulled the cover off the module hoping to find a burnt out solder joint but everything looks ok. any help would be great.

 

[heavy_chevy29]

any gm techs out there?

 

[Big Angry Hillbilly]

Try this first
http://bit.ly/1BvBdGO

Then this:
http://www.gm-trucks.com/forums/topic/149937-ebcm-failure-2004-yukon-denali-xl/