Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
Your car has a part that helps control how the engine's valves open and close. This code means that a sensor is not getting enough power, so it can't tell if the part is working right.
The P265C code indicates that the powertrain control module (PCM) has detected a low voltage condition in the rocker arm actuator position sensor circuit for bank 1.
The rocker arm actuator position sensor monitors the position of the rocker arm actuator. The PCM uses this information to adjust the timing of the engine's valves for optimal performance and efficiency. When the sensor circuit's voltage is lower than expected, the PCM sets the P265C code.
• Check Engine Light is on
• Decreased engine performance
• Engine may run rough or stall
• Increased fuel consumption
• Faulty rocker arm actuator position sensor
• Wiring issues such as shorts or open circuits
• Poor electrical connections
• Faulty PCM
PCM: Powertrain Control Module, the computer that controls engine functions.
Rocker Arm: A component in the engine that helps open and close the valves.
• Check for any other codes and address them first.
• Inspect the wiring and connectors for damage or corrosion.
• Test the rocker arm actuator position sensor for proper operation.
• Check the PCM for proper voltage and ground signals.
• Replace the rocker arm actuator position sensor if faulty.
• Repair or replace damaged wiring or connectors.
• Ensure all electrical connections are secure and free of corrosion.
• Replace the PCM if it is determined to be faulty.
• OBD-II scanner
• Multimeter
• Basic hand tools
• Service manual for specific vehicle
$150 - $500
Moderate
• Honda Accord
• Honda CR-V
• Acura RDX
• Regularly inspect and maintain engine components.
• Ensure electrical connections are clean and secure.
• Use quality parts during repairs.
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional if unsure.
• Regular maintenance can prevent such issues.
Check with your vehicle manufacturer; some components may be covered under warranty.
This code is commonly associated with Honda and Acura vehicles, often due to sensor or wiring issues.
Moderate – Address the issue soon to prevent potential engine damage.
Driving with a malfunctioning sensor can lead to increased emissions and may not comply with local regulations.
• Engine at operating temperature
• Vehicle in park or neutral
The rocker arm actuator position sensor is typically located on the engine's cylinder head, near the rocker arm assembly.
Q: Can I drive with a P265C code?
A: It's not recommended to drive for extended periods with this code, as it can lead to engine performance issues.
Q: How do I reset the Check Engine Light after fixing the issue?
A: Use an OBD-II scanner to clear the code after repairs are completed.
High-End · Full-system diagnostics
A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.
Network faults often require full-system access instead of a generic code reader alone.
View on Amazon
Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.
View on Amazon
Universal · Wire connectors and repair kit
Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.