GM Service Manual Online
For 1990-2009 cars only

Module Power, Ground, Serial Data and MIL

Module Power, Ground, Serial Data and MIL


Object Number: 1990242  Size: FS
Master Electrical Component List
Engine Control Module Description
Control Module References
Engine Data Sensors - 5-Volt and Low Reference
RUN/CRANK Bus - ECM-IGN and TRANS IGN 1 Fuses
ECM-BATT, HEADLAMP WASH, HVAC BATT, IPC, LTR, S/ROOF, and TCM-BATT Fuses
PWR/TRN Bus - ECM/THROT CONT, ENG, O2-A SNSR, and O2-B SNSR Fuses
PWR/TRN Bus - ECM/THROT CONT, ENG, O2-A SNSR, and O2-B SNSR Fuses
PWR/TRN Bus - ECM/THROT CONT, ENG, O2-A SNSR, and O2-B SNSR Fuses
PWR/TRN Bus - ECM/THROT CONT, ENG, O2-A SNSR, and O2-B SNSR Fuses
PWR/TRN Bus - INJ-A and INJ-B Fuses
PWR/TRN Bus - INJ-A and INJ-B Fuses
Serial Data Communication Enable and Wake-up Circuits
G102, G104, and G108
G103, G110 and G111
Drive Motor Generator Power Inverter Module Power and Data Communication, High Voltage A/C Compressor Control
High Speed Bus (HP2)