Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2007IMPALA V6-3.9LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTDIAGRAMSELECTRICAL DIAGRAMS
2007 Chevrolet Impala V6-3.9L
Electrical Diagrams
2007 Chevrolet Impala V6-3.9LSECTION Electrical Diagrams
ENGINE CONTROLS SCHEMATICS
ECM Power, Ground, MIL, and Serial Data
5-Volt and Low Reference Bussing
MAF/IAT, MAP, and ECT Sensors
Heated Oxygen Sensors
Electronic Throttle Controls
Fuel Injectors and Fuel Pump Controls
EVAP Solenoids, IMT Solenoid, and FTP Sensor
Ignition Control Module
Camshaft, Crankshaft, Knock Sensors, and Camshaft Position Actuator Solenoid
Valve Lifter Oil Manifold (VLOM) Assembly, Brake Booster Vacuum Sensor, and Barometric Pressure (BARO) Sensor
Controlled/Monitored Subsystem References
Locations: The locations for the Connectors, Grounds, Splices, and Grommets shown within these diagrams can be found via their numbers at Vehicle Locations. Locations
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.