GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2009 🢒 STS 🢒 Power and Signal Distribution 🢒 Wiring Systems and Power Management 🢒 Powertrain Component Views
Figure 1:

Engine Components 1 of 2 (LC3 or LH2)
Object Number: 1959542 Size: LF
(1)Fuel Injector 3
(2)Fuel Injector 1
(3)Generator
(4)Camshaft Position (CMP) Actuator Solenoid Valve - Bank 1 Exhaust
(5)Camshaft Position (CMP) Sensor - Bank 1 Exhaust
(6)Camshaft Position (CMP) Sensor - Bank 1 Intake
(7)Camshaft Position (CMP) Actuator Solenoid Valve - Bank 1 Intake
(8)Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
(9)A/C Compressor Clutch
(10)Ignition Coil 1
(11)Ignition Coil 3
(12)Ignition Coil 5
(13)Fuel Injector 5
(14)Ignition Coil 7
(15)Fuel Injector 7
(16)Engine Coolant Temperature (ECT) Sensor
Figure 2:

Engine Components 2 of 2 (LC3 or LH2)
Object Number: 1959562 Size: LF
(1)Throttle Body
(2)Camshaft Position (CMP) Actuator Solenoid Valve - Bank 2 Intake
(3)Camshaft Position (CMP) Sensor - Bank 2 Intake
(4)Fuel Injector 2
(5)Fuel Injector 4
(6)Knock Sensor (KS) 1
(7)Starter Motor
(8)Crankshaft Position (CKP) Sensor
(9)Knock Sensor (KS) 2
(10)Fuel Injector 8
(11)Fuel Injector 6
(12)Ignition Coil 8
(13)Ignition Coil 6
(14)Ignition Coil 4
(15)Ignition Coil 2
(16)Engine Oil Pressure (EOP) Sensor
(17)Camshaft Position (CMP) Actuator Solenoid Valve - Bank 2 Exhaust
(18)Camshaft Position (CMP) Sensor - Bank 2 Exhaust
Figure 3:

Engine - Left Rear (LLT)
Object Number: 1971684 Size: LF
(1)Ignition Coil 2
(2)Ignition Coil 4
(3)Fuel Injector 2
(4)Fuel Injector 1
(5)Ignition Coil 6
(6)Fuel Injector 3
(7)Fuel Injector 5
(8)Fuel Injector 6
(9)High Pressure Fuel Pump
(10)Fuel Injector 4
(11)Starter Motor
(12)Knock Sensor (KS) 2
(13)Engine Oil Pressure (EOP) Sensor
Figure 4:

Engine - Right Rear (LLT)
Object Number: 1971716 Size: LF
(1)Ignition Coil 5
(2)Evaporative Emission (EVAP) Canister Purge Solenoid Valve
(3)Ignition Coil 3
(4)Ignition Coil 1
(5)Knock Sensor (KS) 1
(6)Engine Block-Heater Connector
(7)Crankshaft Position (CKP) Sensor
Figure 5:

Engine - Front (LLT)
Object Number: 1971733 Size: LF
(1)Generator
(2)Camshaft Position (CMP) Actuator Solenoid Valve - Bank 1 Exhaust
(3)Camshaft Position (CMP) Sensor - Bank 1 Exhaust
(4)Camshaft Position (CMP) Actuator Solenoid Valve - Bank 1 Intake
(5)Camshaft Position (CMP) Sensor - Bank 1 Intake
(6)Camshaft Position (CMP) Sensor - Bank 2 Intake
(7)Camshaft Position (CMP) Actuator Solenoid Valve - Bank 2 Intake
(8)Camshaft Position (CMP) Sensor - Bank 2 Exhaust
(9)Camshaft Position (CMP) Actuator Solenoid Valve - Bank 2 Exhaust
(10)A/C Compressor Clutch
(11)Throttle Body Assembly