Operation CHARM: Car repair manuals for everyone.

Powertrain Management: Locations



Engine Controls Component Views

Left Rear of Engine Compartment




1 - Coolant Level Switch
2 - Battery
3 - Electronic Brake Control Module (EBCM)
4 - C101
5 - G103
6 - Fuse Block - Underhood
7 - Engine Control Module (ECM)
8 - Engine Control Module (ECM) C3
9 - Engine Control Module (ECM) C2
10 - Engine Control Module (ECM) C1

Front of the Engine Compartment (LZ9)




1 - Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor

Front of the Engine (LZ9)




1 - Intake Manifold Tuning (IMT) Valve Solenoid
2 - Evaporative Emission (EVAP) Canister Purge Solenoid Valve
3 - Throttle Actuator Control (TAC) Module
4 - Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
5 - Knock Sensor (KS) 2
6 - Starter Solenoid
7 - Starter
8 - Engine Oil Pressure (EOP) Sensor
9 - Camshaft Position (CMP) Actuator Solenoid
10 - Camshaft Position (CMP) Sensor

Rear of the Engine (LZ9)




1 - Throttle Actuator Control (TAC) Module
2 - Manifold Absolute Pressure (MAP) Sensor
3 - Ignition Control Module (ICM)
4 - Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
5 - Knock Sensor (KS) 2
6 - Block Heater
7 - Crankshaft Position (CKP) Sensor
8 - Engine Oil Level Sensor
9 - Starter
10 - Engine Coolant Temperature (ECT) Sensor

Top of Engine




1 - Fuel Injector 1
2 - Fuel Injector 3
3 - Fuel Injector 5
4 - Fuel Rail
5 - Fuel Injector 6
6 - Fuel Injector 4
7 - Fuel Injector 2

Below the Left Side of the I/P




1 - Brake Pedal Position Sensor
2 - Accelerator Pedal Position (APP) Sensor
3 - Accelerator Pedal
4 - Brake Pedal

Behind the Catalytic Convertors




1 - Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2
2 - Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2

Under Right Rear of Vehicle




1 - Evaporative Emission (EVAP) Canister
2 - Evaporative Emission (EVAP) Canister Vent Solenoid Valve
3 - Fuel Tank Filler Neck

Top of Fuel Tank




1 - Fuel Tank Pressure (FTP) Sensor, Connector
2 - Fuel Pump and Sender Assembly
3 - Fuel Pump and Sender Assembly Connector
4 - Fuel Tank