Quote:
Originally Posted by wishbone83
I have an 04 Silverado Z71. I am getting error code U1000 on my Scanner. As well as a torque converter code and a front axel code. I can not start the truck. Its as if its in a safety lock out or something.
I talked to a service tech at the lock gmc dealer and he said the U1000 code was definitly the reason it wont start. Possible bad ECM somewhere in the system.
Anybody have this issue ? If so what was the problem? And where can i find a full wireing schematic for my truck ?
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check all grounds including the battery . check all fuses and be sure they fit tightly.
the engine cranks but does not run ? see what the fuel pressure is measure it with gage . see if you get spark .
if you get no spark could be the crank sensor or wires to it .
a u1000 code and no engine run is not typical. this is a comm error and could be from bad grounds and wiring .
if you bring to dealer ship this could be an expensive visit as they guess on what the problem is as they will just replace parts until its fixed .