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P2652 2010 Honda Accord Code - Rocker Arm Oil Pressure Switch 'B' Circuit High Voltage

Quick Answer

The P2652 diagnostic trouble code (DTC) for a 2010 Honda Accord refers to the Rocker Arm Oil Pressure Switch 'B' Circuit High Voltage. Common causes include Faulty rocker arm oil pressure switch, Wiring issues or a short circuit in the circuit controlling the switch, Malfunctioning engine control module (ECM). Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P2652 2010 Honda Accord indicates Rocker Arm Oil Pressure Switch 'B' Circuit High Voltage.
Common causes
Common causes include Faulty rocker arm oil pressure switch, Wiring issues or a short circuit in the circuit controlling the switch, Malfunctioning engine control module (ECM).
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 14, 2024
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Code P2652 2010 Honda Accord Description

The P2652 diagnostic trouble code (DTC) for a 2010 Honda Accord refers to the Rocker Arm Oil Pressure Switch 'B' Circuit High Voltage. This code indicates that there is a high voltage condition detected in the circuit that controls the rocker arm oil pressure switch. The rocker arm oil pressure switch is a crucial component in the engine's lubrication system, responsible for monitoring the oil pressure in the rocker arms. When the switch detects a high voltage, it means that there is an issue with the circuit that could potentially lead to improper oil pressure regulation in the engine.

OBDII Code P2652 2010 Honda Accord - Rocker Arm Oil Pressure Switch 'B' Circuit High Voltage
P2652 2010 Honda Accord Code - Rocker Arm Oil Pressure Switch 'B' Circuit High Voltage

Common Causes of P2652 2010 Honda Accord

  1. Faulty rocker arm oil pressure switch.
  2. Wiring issues or a short circuit in the circuit controlling the switch.
  3. Malfunctioning engine control module (ECM).
  4. Low engine oil level or poor oil quality.
  5. Mechanical issues in the engine affecting oil pressure.

Symptoms of P2652 2010 Honda Accord

  1. Check engine light illuminated on the dashboard.
  2. Engine running rough or misfiring.
  3. Reduced engine performance or power.
  4. Increased fuel consumption.
  5. Engine overheating due to improper lubrication.

How to Fix P2652 2010 Honda Accord

  1. Begin by diagnosing the specific cause of the high voltage condition, using a scan tool to read the DTC and pinpoint the issue.
  2. Inspect the wiring harness connected to the rocker arm oil pressure switch for any damage or corrosion. Repair or replace any damaged wires.
  3. Test the rocker arm oil pressure switch to determine if it is functioning correctly. Replace the switch if necessary.
  4. Check the engine oil level and quality, ensuring it meets the manufacturer's specifications. Top up or change the oil as needed.
  5. If the issue persists, further diagnostic testing may be required to identify any underlying mechanical problems affecting oil pressure.

Cost to Fix P2652 2010 Honda Accord

The typical repair costs for addressing a P2652 code on a 2010 Honda Accord can vary depending on the specific cause of the issue. In general, replacing a faulty rocker arm oil pressure switch can cost between $50 and $150 for the part, with additional labor costs ranging from $100 to $200. If wiring repairs or ECM replacement are necessary, the total repair costs could increase accordingly. It's important to note that labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate based on your location and vehicle specifics.

What does this mean?

Tech Notes for P2652 2010 Honda Accord

The most common problem that can set the P2652 code is the engine oil. Before replacing any parts change the engine oil with the factory recommend oil weight.

When is the Code Detected?

When a malfunction is detected during the first drive cycle, a Pending DTC is stored in the Powertrain Control Module (PCM) memory. If the malfunction returns in the next (second) drive cycle, the MIL comes on and a Confirmed DTC and the freeze data are stored.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2652 2010 Honda Accord Code

1. What are the common symptoms of OBDII code P2652 in a 2010 Honda Accord?

- Common symptoms include the Check Engine light illuminating on the dashboard, reduced engine performance, and potential issues with variable valve timing.

2. What does the OBDII code P2652 on a 2010 Honda Accord indicate?

- OBDII code P2652 indicates a high voltage condition in the rocker arm oil pressure switch 'B' circuit in the engine.

3. What are the possible causes of OBDII code P2652 in a 2010 Honda Accord?

- Possible causes include a faulty rocker arm oil pressure switch, damaged wiring or connectors in the circuit, low engine oil levels, or issues with the engine control module.

4. How can I diagnose the OBDII code P2652 in my 2010 Honda Accord?

- Diagnosing involves using an OBDII scanner to retrieve the code, inspecting the rocker arm oil pressure switch and its circuit for any visible damage, and performing voltage tests as per the manufacturer's specifications.

5. Can I continue driving my 2010 Honda Accord with OBDII code P2652?

- It is not recommended to continue driving with this code as it can lead to potential engine damage or performance issues. It's best to address the underlying problem promptly.

6. How can I repair OBDII code P2652 in my 2010 Honda Accord?

- Repair options include replacing the faulty rocker arm oil pressure switch, repairing any damaged wiring or connectors, ensuring proper engine oil levels, and resetting the trouble code.

7. Are there any DIY tips for fixing OBDII code P2652 in a 2010 Honda Accord?

- While some repairs may be DIY-friendly, it's recommended to have a professional mechanic diagnose and fix the issue to ensure proper repair and prevent further complications.

8. How much does it cost to repair OBDII code P2652 in a 2010 Honda Accord?

- Repair costs can vary based on the specific cause of the issue, parts needed, labor rates in your area, and whether you choose to go to a dealership or an independent repair shop. It's advisable to get estimates from multiple sources.

9. Is OBDII code P2652 a common issue in 2010 Honda Accords?

- While not extremely common, occurrences of OBDII code P2652 in 2010 Honda Accords have been reported. Regular maintenance and timely repairs can help prevent such issues.

10. Can a faulty rocker arm oil pressure switch cause engine damage in a 2010 Honda Accord?

- A faulty rocker arm oil pressure switch can potentially lead to engine damage if left unaddressed, as it affects the proper functioning of the variable valve timing system. It's crucial to address the issue promptly.

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