DTC
Description
Illuminate OnStar® Telltale
B1000
DTC B1000 ECU Malfunction
Yes
B1004
DTC B1004 Keep Alive Memory (KAM) Reset
No
B1009
DTC B1009 EEPROM Checksum Error
B2462
DTC B2462 GPS Signal Error
B2476
DTC B2476 Cellular Phone Select Service Switch Malfunction
U1500
DTC U1500 Inter-Device Dedicated Bus Malfunction
