Engine Controls Schematics. Cadillac STS 2007

For 1990-2009 cars only

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Figure 1:	ECM Power, Ground, Serial Data, and MIL Master Electrical Component List Engine Control Module Description Control Module References Engine Data Sensors - 5-Volt and Low Reference Fuse Block Underhood Wiring Bussing Fuse Block Underhood Wiring Bussing Fuse Block Underhood Wiring Bussing Fuse Block - Right Rear - Lt Turn Signal, RIM 1, Rear Fog Lamp, Ft Pass Door Module, Htd Stg Clm, IGN 1, RIM 2 and Airbag Fuses, Rear Fog Lamp and Ign 1 Relays Fuse Block - Underhood Fuses/Relays: IPM/ALDL, Auto Headlamp Dimming, CCP, ECM/TCM, WPR MOD, WPR SW/VICS and Rain Sensor/HDLP Wash Fuses; ACC Relay Fuse Block Underhood Wiring Bussing Fuse Block - Underhood: Main, Low Speed, Hi Speed, and S/P Fan Relays, V8 ECM, PRE O2/CAM, HFV6 ECM, Low Speed Fan, Hi Speed Fan Fuses Fuse Block - Underhood: Starter, RUN/CRANK Relays; Starter, Starter Relay, CCP, TCM/IPM/ECM, MAF, ABS and Washer Nozzle/ACC Fuses G104 (1 of 2) Engine Data Sensors - Pressure, Temperature, MAF, VSS Power, Grounds, ECM, IPM Automatic Transmission Shift Lock Control Schematics G100 (LH2/LC3) ECM, EBCM G104 (1 of 2)
Figure 2:	Engine Data Sensors - 5-Volt and Low Reference Master Electrical Component List Engine Control Module Description Control Module References Engine Data Sensors - Pressure, Temperature, MAF, VSS ECM. Power, Ground, Serial Data, and MIL
Figure 3:	Ignition Controls - CMP Sensors and Solenoids Master Electrical Component List Engine Control Module Description Control Module References Engine Data Sensors - Pressure, Temperature, MAF, VSS Engine Data Sensors - 5-Volt and Low Reference
Figure 4:	Engine Data Sensors - Pressure, Temperature, MAF, VSS Master Electrical Component List Engine Control Module Description Control Module References Engine Data Sensors - Oxygen Sensors Engine Data Sensors - 5 Volt and Low Reference 2 of 2 ECM. Power, Ground, Serial Data, and MIL G100 (LH2/LC3)
Figure 5:	Engine Data Sensors - Oxygen Sensors Master Electrical Component List Engine Control Module Description Control Module References Engine Data Sensors - Electronic Throttle Controls Engine Data Sensors - Pressure, Temperature, MAF, VSS Fuse Block Underhood Wiring Bussing
Figure 6:	Engine Data Sensors - Electronic Throttle Controls Master Electrical Component List Engine Control Module Description Control Module References Ignition Controls - Ignition System Bank 1 Engine Data Sensors - Oxygen Sensors Engine Controls Schematic Icons
Figure 7:	Ignition Controls - Ignition System Bank 1 Master Electrical Component List Engine Control Module Description Control Module References Ignition Controls - Ignition System Bank 2 Engine Data Sensors - Electronic Throttle Controls Fuse Block - Underhood: Odd Inj/Coils, Even Inj/Coils and Post O2 Fuses G107 (LH2/LC3), G113 (LY7)
Figure 8:	Ignition Controls - Ignition System Bank 2 Master Electrical Component List Engine Control Module Description Control Module References Ignition Controls - CMP Sensors and Solenoids Ignition Controls - Ignition System Bank 1 Fuse Block - Underhood: Odd Inj/Coils, Even Inj/Coils and Post O2 Fuses G107 (LH2/LC3), G113 (LY7)
Figure 9:	Ignition Controls - CMP Sensors and Solenoids Master Electrical Component List Engine Control Module Description Control Module References Crankshaft Position (CKP) Sensor and Knock Sensors Ignition Controls - Ignition System Bank 2
Figure 10:	Crankshaft Position (CKP) Sensor and Knock Sensors Master Electrical Component List Engine Control Module Description Control Module References Fuel Controls - Injectors and Pump Ignition Controls - CMP Sensors and Solenoids Engine Controls Schematic Icons Engine Controls Schematic Icons Engine Controls Schematic Icons Engine Controls Schematic Icons Engine Controls Schematic Icons Engine Controls Schematic Icons
Figure 11:	Fuel Controls - Injectors and Pump Master Electrical Component List Engine Control Module Description Control Module References 07 STS Engine Controls 4.4L - Fuel Controls - EVAP, Fuel Tank Pressure (FTP) Sensor, and Vacuum Bypass Valve Crankshaft Position (CKP) Sensor and Knock Sensors Fuse Block - Underhood: Odd Inj/Coils, Even Inj/Coils and Post O2 Fuses Fuse Block Underhood Wiring Bussing G401 (1 of 2) G401 (1 of 2) Engine Oil and Fuel Tank Level
Figure 12:	Fuel Controls - EVAP, Fuel Tank Pressure (FTP) Sensor, Vacuum Bypass Valve Master Electrical Component List Engine Control Module Description Control Module References Controlled/Monitored Subsystem References Fuel Controls - Injectors and Pump Fuse Block - Underhood: Main, Low Speed, Hi Speed, and S/P Fan Relays, V8 ECM, PRE O2/CAM, HFV6 ECM, Low Speed Fan, Hi Speed Fan Fuses Fuse Block - Right Rear Bussing Engine Oil and Fuel Tank Level
Figure 13:	Controlled/Monitored Subsystem References Master Electrical Component List Engine Control Module Description Control Module References Charge Air Cooler (CAC) Coolant Pump 07 STS Engine Controls 4.4L - Fuel Controls - EVAP, Fuel Tank Pressure (FTP) Sensor, and Vacuum Bypass Valve Power, Grounds, ECM, IPM Starting System - LH2 Charging System Cooling Fans Automatic Transmission Shift Lock Control Schematics Indicators A/C Refrigerant Pressure Sensor and Compressor Clutch Backup Lamps, CHMSL - Domestic and Export Engine Oil and Fuel Tank Level
Figure 14:	Charge Air Cooler (CAC) Coolant Pump Master Electrical Component List Engine Control Module Description Control Module References Engine Data Sensors - IAT2, BARO, SCIAP Controlled/Monitored Subsystem References Fuse Block - Left Rear Bussing G100 (LH2/LC3)
Figure 15:	Engine Data Sensors -- IAT 2, BARO, SCIAP Master Electrical Component List Engine Control Module Description Control Module References Charge Air Cooler (CAC) Coolant Pump