Diagnostic Trouble Code (DTC) List for Chevrolet Chevy C Cab/Chassis HD (GMT 400) 2001

DTC	Description	Module
U1000 and U1255	DTC U1000 and U1255	EBCM, PCM, VTD
U1001 through U1254	DTC U1001-U1254	EBCM, PCM, VTD
U1300	DTC U1300	EBCM, PCM, VTD
U1301	DTC U1301	EBCM, PCM, VTD