Jwatdtr1878
26-06-2009, 12:44 PM
I'm having problem with a Supra 650 on a medium duty truck. The driver thinks he has a code 0007 some relay bad coming up on his controller. I have no service info for this unit. Does anyone have a service manual to help me understand this problem? He has to unplug a relay in the unit to get it to shutdown. He cannot shut it down from the controller. Any help is greatly appreciated. I'm a truck mechanic so I rarely get to work on these units. Thanks.