Electrical Diagrams

Engine Controls Schematics

Module Power, Ground, Serial Data and MIL





5V1, and Low Reference Bus (1 of 3)
AIRBAG, BRK SW, ECM IGN/GLOW PLUG MDL IGN, FCSM IGN, IPC, STR/WHL/SNSR, TCM IGN, and TRANS Fuses
AIRBAG, BRK SW, ECM IGN/GLOW PLUG MDL IGN, FCSM IGN, IPC, STR/WHL/SNSR, TCM IGN, and TRANS Fuses
CNSTR VENT SOL, ECM BATT, FCSM BATT, and WPR Fuses
Electrical Center Identification Views
ECM PWR/TRN, EVEN IGN/INJ, FUEL HTR, and V6 FUEL INJ Fuses
ECM PWR/TRN, MAF/CNSTR VENT, O2 SNSR 1 (PRE)/CLS, and O2 SNSR 2 (POST) Fuses
ECM PWR/TRN, MAF/CNSTR VENT, O2 SNSR 1 (PRE)/CLS, and O2 SNSR 2 (POST) Fuses
ECM PWR/TRN, EVEN IGN/INJ, FUEL HTR, and V6 FUEL INJ Fuses
FAN CLTCH (EV) and ODD IGN/INJ Fuses
Engine Data Sensors - Glow Plug Controls and Intake Air Heater
Accessory Wakeup
High Speed GMLAN (Diesel)
Ground Distribution Schematics

5V1, and Low Reference Bus (1 of 3)





5V2, 5V3, 5V4, and Low Reference Bus (2 of 3)
Module Power, Ground, Serial Data and MIL
5V2, 5V3, 5V4, and Low Reference Bus (2 of 3)

5V2, 5V3, 5V4, and Low Reference Bus (2 of 3)





Low Reference Bus (3 of 3)
5V1, and Low Reference Bus (1 of 3)
5V1, and Low Reference Bus (1 of 3)
Low Reference Bus (3 of 3)

Low Reference Bus (3 of 3)





Engine Data Sensors - Temperature, AI and MAF
5V2, 5V3, 5V4, and Low Reference Bus (2 of 3)
5V2, 5V3, 5V4, and Low Reference Bus (2 of 3)

Engine Data Sensors - Pressure and Temperature (1 of 2)





Engine Data Sensors - EGR and Turbocharger Controls
Engine Data Sensors - Temperature, AI and MAF

Engine Data Sensors - Pressure and Temperature (2 of 2)





Engine Data Sensors - Pressure and WIF
Low Reference Bus (3 of 3)
ECM PWR/TRN, MAF/CNSTR VENT, O2 SNSR 1 (PRE)/CLS, and O2 SNSR 2 (POST) Fuses
ECM PWR/TRN, MAF/CNSTR VENT, O2 SNSR 1 (PRE)/CLS, and O2 SNSR 2 (POST) Fuses

Engine Data Sensors - EGR and Turbocharger Controls





Engine Data Sensors - Pedal Position and Injector Timing
Engine Data Sensors - Pressure and WIF
Master Electrical Schematic Icons

Engine Data Sensors - Pedal Position and Injector Timing





Engine Data Sensors - Glow Plug Controls and Intake Air Heater
Engine Data Sensors - EGR and Turbocharger Controls
Stop Lamp Controls and CHMSL

Engine Data Sensors - Glow Plug Controls and Intake Air Heater





Engine Data Sensors - Nitrogen Oxides and Reductant Sensor Module
Engine Data Sensors - Pedal Position and Injector Timing
Module Power, Ground, Serial Data and MIL
B+ Bus - Underhood Fuse Block (1 of 2)
B+ Bus - Underhood Fuse Block (1 of 2)
Accessory Wakeup
G103, G104, G105 and G106
G300, G301, G304, and G305
Data Communication Schematics

Engine Data Sensors - Nitrogen Oxides and Reductant Sensor Module





Fuel Controls - Fuel Pump, Temperature and Pressure Controls
Engine Data Sensors - Glow Plug Controls and Intake Air Heater
ECM PWR/TRN, MAF/CNSTR VENT, O2 SNSR 1 (PRE)/CLS, and O2 SNSR 2 (POST) Fuses
ECM PWR/TRN, MAF/CNSTR VENT, O2 SNSR 1 (PRE)/CLS, and O2 SNSR 2 (POST) Fuses
Data Communication Schematics
G350 and G400

Fuel Controls - Fuel Pump, Temperature and Pressure Controls





Fuel Controls - Fuel Injectors
Engine Data Sensors - Nitrogen Oxides and Reductant Sensor Module
Electrical Center Identification Views
ECM PWR/TRN, MAF/CNSTR VENT, O2 SNSR 1 (PRE)/CLS, and O2 SNSR 2 (POST) Fuses
A/C CMPRSR, ABS MDL, ABS MTR, DIESEL FUEL PUMP, GAS FUEL PUMP, HORN, and WASH Fuses
ECM PWR/TRN, EVEN IGN/INJ, FUEL HTR, and V6 FUEL INJ Fuses
G102, G110 and G120
G350 and G400

Fuel Controls - Fuel Injectors





Master Electrical Component List
Fuel System Description
Control Module References
Emissions Controls - Reductant System
Fuel Controls - Fuel Pump, Temperature and Pressure Controls

Emissions Controls - Reductant System





Fuel Controls - Fuel Injectors
G350 and G400

Controlled/Monitored Subsystem References





Starting System (Diesel)
Charging System (Diesel)
Compass and Gauges (LGH)
Indicators
Engine Cooling (LGH)
Stop Lamp Controls and CHMSL
Engine Oil Level Switch (LGH)
Power, Ground, Serial Data, Speed Signals and Indicators (JL9 or JH9)
IMS, Tow/Haul, and Tap Up/Tap Down Switches
Module Power, Ground, Data Communication, MIL, and Stop Lamp Signal (Diesel)
Compressor Controls (C60)