GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Pontiac
🢒
2002
🢒
Montana Ext.
🢒
Body and Accessories
🢒
Data Link Communications
🢒 Diagnostic Trouble Code (DTC) List
DTC
Description
Module
B1001
DTC B1001
Radio
B1025
DTC B1025, B1035, B1045, or B1055
Radio
B1780
DTC B1780
Radio