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 MANUALSHONDA2009ACCORD EX, 4D SEDAN, 2.4 CP2, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMVTEC (4-CYL)
2009 Honda Accord EX, 4D Sedan, 2.4 CP2, Standard
VTEC (4-CYL)
2009 Honda Accord EX, 4D Sedan, 2.4 CP2, StandardSECTION VTEC (4-CYL)
- Component Location Index
- DTC Troubleshooting
- DTC P0010: VTC Oil Control Solenoid Valve Malfunction
- DTC P0011: VTC System Malfunction
- DTC P0340: CMP Sensor A No Signal
- DTC P0341: CMP Sensor A and CKP Sensor Incorrect Phase Detected
- DTC P0344: CMP Sensor A Circuit Intermittent Interruption
- DTC P1009: VTC Advance Malfunction
- DTC P2646: Rocker Arm Oil Pressure Switch Circuit Low Voltage (All models except PZEV)
- DTC P2646: Rocker Arm Oil Pressure Switch A Circuit Low Voltage (PZEV model); DTC P2647: Rocker Arm Oil Pressure Switch A Circuit High Voltage (PZEV model)
- DTC P2647: Rocker Arm Oil Pressure Switch Circuit High Voltage (All models except PZEV)
- DTC P2648: Rocker Arm Oil Control Solenoid Circuit Low Voltage (All models except PZEV)
- DTC P2648: Rocker Arm Oil Control Solenoid A (Intake Valve Side) Circuit Low Voltage (PZEV model)
- DTC P2649: Rocker Arm Oil Control Solenoid Circuit High Voltage (All models except PZEV)
- DTC P2649: Rocker Arm Oil Control Solenoid A (Intake Valve Side) Circuit High Voltage (PZEV model)
- DTC P2651: Rocker Arm Oil Pressure Switch B Circuit Low Voltage (PZEV model); DTC P2652: Rocker Arm Oil Pressure Switch B Circuit High Voltage (PZEV model)
- DTC P2653: Rocker Arm Oil Control Solenoid B (Exhaust Valve Side) Circuit Low Voltage
- DTC P2654: Rocker Arm Oil Control Solenoid B (Exhaust Valve Side) Circuit High Voltage
- VTC Oil Control Solenoid Valve Removal/Test/Installation
- CMP Sensor A Replacement
- Rocker Arm Oil Control Valve Removal/Installation
- Rocker Arm Oil Pressure Switch Removal/Installation
- Rocker Arm Oil Pressure Switch A Removal/Installation
- Rocker Arm Oil Pressure Switch B Removal/Installation
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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.