GM Service Manual Online
For 1990-2009 cars only

Description

Module

DTC B1000 ECU Malfunction

or for IPM only DTC B1000 ECU Malfunction in HVAC

IPM, IRC, RFA, SDM

DTC B1004 Keep Alive Memory (KAM)

CDX, DIC, HUD, IPC, IPM, IRC

DTC B1007 EEPROM Write Error

CCP, CDX, DDM, DIC, DIM, HUD, IPC, IRC, MSM, RFA, RIM, VTD

DTC B1009 EEPROM Checksum Error

CCP, CDX, DDM, DIM, IPM, IRC, MSM, RIM, VTD

DTC B1010 Calibration ROM Checksum Error

IPM

DTC B1390 Device Voltage Reference Input CKT Malf

DIM

DTC B1422 Device Power Moding Malfunction

DIM