Starting and Heads Up Display Issue

just try to start up nothing much you can do as it needs to be programed as long as test ecu is from d12 it should not have any issues starting the truck.

 

ok do this try to install a taillight across the terminals on f15 it should light up when you have the short, then unplug relays one by one B30 is common power terminal for relays so if you have some circuit that's shorting out there is nothing across a relay what will use a load on the common and 87 pin sides .

 

if this is not making any sense call me and ill try to see if i can explain better 630-607-8889

 

i know trust me i got nothing but owner ops that come to my shop and definately respect when someone tries something on their own give me a call if you disconect relays one by one you will find the circuit that is causing this then it's a different ball game of what it could be causing it on that circuit.

 

i know there is not a problem yet on volvo specialy electrical that i haven't been able to fix yet so it's usually just a matter of time some take longer than others but its always a matter of time.