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: 1870464  Size: FS
Master Electrical Component List
Engine Control Module Description
Control Module References
Engine Data Sensors - 5-Volt and Low Reference - 1 of 2
Ignition II/III Voltage
ECM-BATT, HDLP WASH, HVAC BATT, IPC, LTR, S/ROOF and TCM-BATT Fuses
RUN/CRANK BUS - ECM-IGN and TRANS IGN 1 Fuses
PWR/TRN BUS - DSL ECM, FUEL HTR, O2-A SNSR and O2-B SNSR Fuses
PWR/TRN BUS - ECM/THROT CONT and ENG Fuses
PWR/TRN BUS - ECM/THROT CONT and ENG Fuses
PWR/TRN BUS - DSL ECM, FUEL HTR, O2-A SNSR and O2-B SNSR Fuses
Accessory Wakeup Serial Data
G106 (4.3L) and G103
High Speed Bus - 3 of 3 (Diesel)