DTC
Diagnostic Procedure
Module(s)
B1000
DTC B1000
BCM, DIC, EBCM, IPC, OnStar Module, PCM, Radio, SDM
B1007
DTC B1007
Radio
B1009
DTC B1009
OnStar Module, Radio
B1339
DTC B1339
BCM
B1349
DTC B1349
B1440
DTC B1440
B1507
DTC B1507 or B1508
B1508
C0550
DTC C0550
EBCM