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.
2011 Infiniti M56 BaseFACTORY OEM SERVICE PROCEDURE
Engine Control System - Introduction, System Description And Basic Inspection (VK56VD)
- Precaution
- Preparation
- System Description
- Component Parts
- Engine Control System
- Infiniti Drive Mode Selector
- Accelerator Pedal Position Sensor
- Air Fuel Ratio (A/F) Sensor 1
- ASCD Brake Switch
- ASCD Steering Switch
- Battery Current Sensor (With Battery Temperature Sensor)
- Camshaft Position Sensor
- Cooling Fan
- Crankshaft Position Sensor
- Electric Throttle Control Actuator
- Engine Coolant Temperature Sensor
- Engine Oil Pressure Sensor
- Engine Oil Temperature Sensor
- EVAP Control System Pressure Sensor
- EVAP Canister Vent Control Valve
- EVAP Canister Purge Volume Control Solenoid Valve
- Exhaust Valve Timing Control Position Sensor
- Exhaust Valve Timing Control Solenoid Valve
- Fuel Injector
- Fuel Tank Temperature Sensor
- Heated Oxygen Sensor 2
- High Pressure Fuel Pump
- Fuel Pump Control Module
- Fuel Rail Pressure Sensor
- ICC Brake Switch
- ICC Steering Switch
- Ignition Coil With Power Transistor
- Information Display
- Intake Valve Timing Control Solenoid Valve
- Knock Sensor
- Low Fuel Pressure Sensor
- Low Pressure Fuel Pump
- Malfunction Indicator Lamp (MIL)
- Manifold Absolute Pressure Sensor
- Mass Air Flow Sensor (With Intake Air Temperature Sensor)
- Power Steering Pressure (PSP) Sensor
- Refrigerant Pressure Sensor
- Stop Lamp Switch
- VVEL Actuator Motor
- VVEL Actuator Motor Relay
- VVEL Control Module
- VVEL Control Shaft Position Sensor
- Structure And Operation
- System
- Engine Control System
- Direct Injection Gasoline System
- Fuel Pressure Control
- Cooling Fan Control
- Electric Ignition System
- Intake Valve Timing Control
- Exhaust Valve Timing Control
- VVEL System
- Evaporative Emission System
- Air Conditioning Cut Control
- Automatic Speed Control Device (ASCD)
- Can Communication
- Infiniti Drive Mode Selector
- Operation
- Handling Precaution
- On Board Diagnostic (OBD) System
- Diagnosis System (ECM)
- Diagnosis Description
- DIAGNOSIS DESCRIPTION : 1st Trip Detection Logic and Two Trip Detection Logic
- DIAGNOSIS DESCRIPTION : DTC and Freeze Frame Data
- DIAGNOSIS DESCRIPTION : Counter System
- DIAGNOSIS DESCRIPTION : Driving Pattern
- DIAGNOSIS DESCRIPTION : System Readiness Test (SRT) Code
- DIAGNOSIS DESCRIPTION : Malfunction Indicator Lamp (MIL)
- On Board Diagnosis Function
- CONSULT-III Function
- Diagnosis Description
- Component Parts
- Ecu Diagnosis Information
- Wiring Diagram
- Basic Inspection
- Diagnosis And Repair Workflow
- Basic Inspection
- Additional Service When Replacing ECM
- Additional Service When Replacing VVEL Control Module
- VIN Registration
- Accelerator Pedal Released Position Learning
- Throttle Valve Closed Position Learning
- Idle Air Volume Learning
- VVEL Control Shaft Position Sensor Adjustment
- Mixture Ratio Self-Learning Value Clear
- Fuel Pressure
- How To Set SRT Code
- DTC/Circuit Diagnosis
Factory Service Tools
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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.
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