GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2001 🢒 Express 🢒 Engine 🢒 Engine Electrical 🢒 Diagnostic Trouble Code (DTC) List

DTC

Diagnostic Procedure

Module

U1000 and U1255

DTC U1000 and U1255

EBCM, PCM, IRC, VTD, VIM, SDM

U1001 through U1254

DTC U1001-U1254

EBCM, PCM, IRC, VTD, VIM, SDM

U1300

DTC U1300

EBCM, PCM, IRC, VTD, VIM, SDM

U1301

DTC U1301

EBCM, PCM, IRC, VTD, VIM, SDM