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P101A 2018 Honda CR-V Code - Variable Valve Timing Control 'B' Advance Malfunction

Quick Answer

The P101A code indicates a malfunction in the Variable Valve Timing (VVT) system, specifically related to the 'B' control circuit. Common causes include Faulty VVT actuator or solenoid, Oil flow issues, such as low oil level or dirty oil, Damaged or corroded wiring in the VVT circuit. 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
P101A 2018 Honda CR-V indicates Variable Valve Timing Control 'B' Advance Malfunction.
Common causes
Common causes include Faulty VVT actuator or solenoid, Oil flow issues, such as low oil level or dirty oil, Damaged or corroded wiring in the VVT circuit.
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 Jun 23, 2025
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Code P101A 2018 Honda CR-V Description

The P101A code indicates a malfunction in the Variable Valve Timing (VVT) system, specifically related to the 'B' control circuit. This system is crucial for optimizing engine performance, fuel efficiency, and emissions control by adjusting the timing of the intake and exhaust valves based on engine speed and load. When the VVT system is functioning correctly, it allows for better combustion efficiency, which translates to improved power delivery and reduced fuel consumption.
OBDII Code P101A 2018 Honda CR-V - Variable Valve Timing Control 'B' Advance Malfunction
P101A 2018 Honda CR-V Code - Variable Valve Timing Control 'B' Advance Malfunction

Common Causes of P101A 2018 Honda CR-V

  1. Faulty VVT actuator or solenoid.
  2. Oil flow issues, such as low oil level or dirty oil.
  3. Damaged or corroded wiring in the VVT circuit.
  4. Malfunctioning camshaft timing gear.
  5. ECM software issues or faults.

Symptoms of P101A 2018 Honda CR-V

  1. Decreased engine power and acceleration.
  2. Rough idling or engine stalling.
  3. Poor fuel economy and increased emissions.
  4. Check Engine Light (CEL) illuminated on the dashboard.
  5. Unusual engine noises, such as knocking or ticking sounds.

How to Fix P101A 2018 Honda CR-V

  1. Diagnostic Scan: Begin by using an OBD-II scanner to confirm the P101A code and check for any additional codes that may provide more context.
  2. Visual Inspection: Inspect the VVT actuator, solenoid, and associated wiring for any visible damage, corrosion, or disconnections.
  3. Oil Check: Ensure that the engine oil is at the correct level and is clean. If the oil is dirty or low, change the oil and filter.
  4. Component Testing: Test the VVT actuator and solenoid for proper operation using a multimeter and, if necessary, replace any faulty components.
  5. ECM Reprogramming: If all hardware checks out, consider reprogramming or updating the ECM software to resolve any potential software-related issues.

Cost to Fix P101A 2018 Honda CR-V

The typical repair costs for addressing a P101A code can range from $200 to $1,000, depending on the specific cause of the issue. This estimate includes parts such as a VVT actuator or solenoid, which can cost between $100 and $500, and labor costs that typically range from $80 to $150 per hour. The total repair time can vary significantly based on the complexity of the issue and the shop's diagnostic process. It's important to note that labor rates may be higher in metropolitan areas or at dealerships, while independent shops often offer more competitive pricing. For a more precise estimate, it's advisable to check local rates and consult with a trusted mechanic.

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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 P101A 2018 Honda CR-V Code

1. What does the OBDII code P101A mean on a 2018 Honda CR-V?

P101A indicates a Variable Valve Timing (VVT) Control 'B' Advance Malfunction, which means the VVT system isn't advancing the camshaft timing as expected.

2. What are the common symptoms of P101A on a 2018 Honda CR-V?

Symptoms may include reduced engine performance, poor fuel efficiency, rough idling, difficulty starting, and the check engine light turning on.

3. What causes the P101A code on a 2018 Honda CR-V?

Common causes include a faulty VVT solenoid, oil flow issues, contaminated or low engine oil, wiring problems, or a malfunctioning camshaft sensor.

4. Can driving with the P101A code damage my 2018 Honda CR-V?

Driving with this code for an extended period can lead to engine performance issues and potential long-term damage due to improper valve timing.

5. How do I fix the P101A code on a 2018 Honda CR-V?

Repairs may include replacing the VVT solenoid, cleaning or replacing the camshaft sensor, checking wiring and connectors, and ensuring the engine oil is clean and at the correct level.

6. How do I diagnose the P101A code on a 2018 Honda CR-V?

Diagnosis typically involves scanning the vehicle for additional codes, inspecting the VVT solenoid and camshaft sensor, and checking the oil condition and level.

7. Can dirty engine oil cause the P101A code on a 2018 Honda CR-V?

Yes, dirty or low engine oil can restrict oil flow to the VVT system, causing a malfunction and triggering the code.

8. How much does it cost to repair the P101A code on a 2018 Honda CR-V?

Repair costs vary depending on the issue but typically range from $150 to $500 for parts and labor, depending on the component needing replacement.

9. Will a faulty camshaft position sensor trigger the P101A code on a 2018 Honda CR-V?

Yes, a malfunctioning camshaft position sensor can cause incorrect timing readings, leading to this code.

10. Can I clear the P101A code without fixing the issue on a 2018 Honda CR-V?

Clearing the code without addressing the underlying problem may temporarily turn off the check engine light but won't fix the issue, and the code will likely return.

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