Engine Controls Schematics. Cadillac STS 2005

For 1990-2009 cars only

Makes 🢒 Cadillac 🢒 2005 🢒 STS 🢒 Vehicle Control Systems 🢒 Vehicle DTC Information 🢒 Engine Controls Schematics

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 Reference Bus Engine Controls Schematic Icons Fuse Block Underhood Bussing Fuse Block-Underhood Fuses/Relay: IPM/ALDL, Auto Headlamp Dimming, CCP, ECM/TCM, WPR MOD, WPR SW/VICS and Rain Sensor/HDLP Wash Fuses. Accessory Relay Fuse Block Underhood Bussing Fuse Block Underhood Bussing Fuse Block-Underhood: Starter IGN 1 Relays; Starter, Starter Relay, CCP, TCM/IPM/ECM, MAF, ABS and Washer Nozzle/ACC Fuses Fuse Block Right Rear: LT Turn Signal, RIM(1), Rear Fog Lamp, FT Passenger Door Module, Heated Steering Column, IGN 1, RIM(2) and Airbag Fuses; Rear Fog Lamp and IGN 1 Relays G104 (1 of 2) Fuse Block-Underhood Fuses/Relay: IPM/ALDL, Auto Headlamp Dimming, CCP, ECM/TCM, WPR MOD, WPR SW/VICS and Rain Sensor/HDLP Wash Fuses. Accessory Relay G104 (1 of 2)
Figure 2:	Engine Data Sensors - 5-Volt Reference Bus Master Electrical Component List Engine Control Module Description Control Module References Engine Data Sensors - Low Reference Bus ECM Power, Ground, DLC and MIL Engine Controls Schematic Icons
Figure 3:	Engine Data Sensors - Low Reference Bus Master Electrical Component List Engine Control Module Description Control Module References Engine Data Sensors - Pressure, Temperature, MAF, VSS Engine Data Sensors - 5 Volt Reference Bus Engine Controls Schematic Icons Ignition Controls -Crankshaft Position (CKP) and Knock Sensors
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 - Low Reference Bus Engine Controls Schematic Icons Fuse Block Right Rear: LT Turn Signal, RIM(1), Rear Fog Lamp, FT Passenger Door Module, Heated Steering Column, IGN 1, RIM(2) and Airbag Fuses; Rear Fog Lamp and IGN 1 Relays G104 (1 of 2) Fuse Block Underhood Bussing Fuse Block-Underhood: Starter IGN 1 Relays; Starter, Starter Relay, CCP, TCM/IPM/ECM, MAF, ABS and Washer Nozzle/ACC Fuses Engine Data Sensors - 5 Volt Reference Bus Engine Data Sensors - 5 Volt Reference Bus Automatic Headlamp Dimming Signals, VSS (TT6) Engine Data Sensors - Low Reference Bus
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 Engine Controls Schematic Icons Fuse Block Underhood Bussing Fuse Block Underhood LO SPD FAN, HI SPD FAN, V8 ECM, PRE 02/CAM and HFV6 ECM Fuses; Main, LO SPD, HI SPD and S/P FAN Relays Engine Controls Schematic Icons Engine Controls Schematic Icons Engine Controls Schematic Icons Engine Controls Schematic Icons
Figure 6:	Engine Data Sensors - Electronic Throttle Controls Master Electrical Component List Engine Control Module Description Control Module References Ignition Controls - Bank 1 Ignition Coils Engine Data Sensors - Oxygen Sensors Engine Controls Schematic Icons Engine Controls Schematic Icons
Figure 7:	Ignition Controls - Bank 1 Ignition Coils Master Electrical Component List Engine Control Module Description Control Module References Ignition Controls - Bank 2 Ignition Coils Engine Data Sensors - Electronic Throttle Controls Engine Controls Schematic Icons Fuse Block Underhood: Odd INJ/COILS, Even INJ/COILS and POST 02 Fuses Fuse Block Underhood: Odd INJ/COILS, Even INJ/COILS and POST 02 Fuses
Figure 8:	Ignition Controls - Bank 2 Ignition Coils Master Electrical Component List Engine Control Module Description Control Module References Camshaft Position (CMP) Sensors and Solenoids Ignition Controls - Bank 1 Ignition Coils Engine Controls Schematic Icons Fuse Block Underhood: Odd INJ/COILS, Even INJ/COILS and POST 02 Fuses Fuse Block Underhood: Odd INJ/COILS, Even INJ/COILS and POST 02 Fuses
Figure 9:	Ignition Controls - CMP Sensors and Solenoids Master Electrical Component List Engine Control Module Description Control Module References Ignition Controls -Crankshaft Position (CKP) and Knock Sensors Ignition Controls - Bank 2 Ignition Coils Engine Controls Schematic Icons Fuse Block Underhood Bussing Ignition Controls -Crankshaft Position (CKP) and Knock Sensors Fuse Block Underhood LO SPD FAN, HI SPD FAN, V8 ECM, PRE 02/CAM and HFV6 ECM Fuses; Main, LO SPD, HI SPD and S/P FAN Relays Engine Data Sensors - Low Reference Bus
Figure 10:	Ignition Controls - CKP, Knock Sensors and IMRC Solenoid Master Electrical Component List Engine Control Module Description Control Module References Fuel Controls - Fuel Pump and Injectors Camshaft Position (CMP) Sensors and Solenoids Engine Controls Schematic Icons Engine Data Sensors - Low Reference Bus Camshaft Position (CMP) Sensors and Solenoids Engine Controls Schematic Icons Engine Controls Schematic Icons
Figure 11:	Fuel Controls - Fuel Pump and Injectors Master Electrical Component List Engine Control Module Description Control Module References Fuel Controls - EVAP Conrols Ignition Controls -Crankshaft Position (CKP) and Knock Sensors Engine Controls Schematic Icons Fuse Block Underhood: Odd INJ/COILS, Even INJ/COILS and POST 02 Fuses Fuse Block Underhood: Odd INJ/COILS, Even INJ/COILS and POST 02 Fuses Fuse Block Underhood Bussing G401 (1 of 2) G401 (1 of 2) Instrument Panel Cluster Schematic - Engine Oil and Fuel Tank Level
Figure 12:	Fuel Controls - EVAP Controls Master Electrical Component List Engine Control Module Description Control Module References Controlled/Monitored Subsystem References Fuel Controls - Fuel Pump and Injectors Engine Controls Schematic Icons Fuse Block Underhood Bussing Fuse Block - Right Rear Bussing Fuse Block Underhood LO SPD FAN, HI SPD FAN, V8 ECM, PRE 02/CAM and HFV6 ECM Fuses; Main, LO SPD, HI SPD and S/P FAN Relays Engine Data Sensors - Low Reference Bus Engine Data Sensors - 5 Volt Reference Bus Engine Data Sensors - Low Reference Bus
Figure 13:	Controlled/Monitored Subsystem References Master Electrical Component List Engine Control Module Description Control Module References Fuel Controls - EVAP Conrols Engine Controls Schematic Icons Starting System - LH2 Charging System Cooling Fans Shift Lock Control Schematics Indicators Instrument Panel Cluster Schematic - Engine Oil and Fuel Tank Level A/C Refrigerant Pressure Sensor and Compressor Clutch Backup Lamps, CHMSL - Domestic and Export TCM Power, Grounds and DLC