AutoCodes – Nissan – P100B Nissan

P100B Nissan Code - VVEL Response Malfunction Bank 2

Quick Answer

VVEL (Variable Valve Event & Lift) is a system that controls valve event and valve lift continuously. Common causes include Faulty VVEL Actuator Motor, VVEL Actuator Motor harness is open or shorted, VVEL Actuator Motor circuit poor electrical connection. 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
P100B Nissan indicates VVEL Response Malfunction Bank 2.
Common causes
Common causes include Faulty VVEL Actuator Motor, VVEL Actuator Motor harness is open or shorted, VVEL Actuator Motor circuit poor electrical connection.
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.
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Code Popularity 4,510
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 12, 2019
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Code P100B Nissan Description

VVEL (Variable Valve Event & Lift) is a system that controls valve event and valve lift continuously. Rotational movement of the drive shaft equipped with eccentric cam is transmitted to output cam via the rocker arm and two kinds of links to depress the intake valve. The Engine Control Module (ECM) decides the target valve lift according to the driving condition and sends the command signal to the VVEL control module. The VVEL control module controls the rotation of the control shaft using the VVEL actuator motor and changes the movement of the output cam by shifting the link supporting point. As a result, valve lift changes continuously to improve engine output and response.
OBDII Code P100B Nissan - VVEL Response Malfunction Bank 2 - AutoCodes.com
P100B Nissan Code - VVEL Response Malfunction Bank 2

What are the Possible Causes of the DTC P100B Nissan?

  • Faulty VVEL Actuator Motor
  • VVEL Actuator Motor harness is open or shorted
  • VVEL Actuator Motor circuit poor electrical connection
  • Faulty VVEL actuator sub assembly
  • Faulty VVEL ladder assembly
  • Faulty VVEL control module

How to Fix the DTC P100B Nissan?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P100B Nissan code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P100B Nissan code?

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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 P100B Nissan Code

1. What does the OBDII code P100B mean on a Nissan?

P100B indicates a "VVEL Response Malfunction Bank 2," meaning there is an issue with the Variable Valve Event and Lift (VVEL) system on the engine's second bank.

2. What are the common symptoms of a P100B code in a Nissan?

Symptoms include reduced engine performance, rough idling, poor fuel economy, hesitation during acceleration, and potentially an illuminated check engine light.

3. What causes the P100B code to appear on a Nissan?

Common causes include a malfunctioning VVEL actuator, electrical issues like damaged wiring or bad connectors, a faulty VVEL control module, or low oil pressure affecting the system's operation.

4. Can low oil levels trigger a P100B code?

Yes, insufficient or dirty oil can cause the VVEL system to malfunction, leading to a P100B code due to its reliance on proper oil pressure for operation.

5. What is the VVEL system in a Nissan?

The VVEL (Variable Valve Event and Lift) system controls valve timing and lift to optimize engine performance, fuel efficiency, and emissions.

6. How do you diagnose a P100B code?

Diagnosis involves checking for related codes, inspecting VVEL wiring and connectors, testing the VVEL actuator and control module, and ensuring proper oil levels and pressure.

7. Can I continue driving with a P100B code?

It's not recommended to drive long-term with a P100B code, as it can impact engine performance and potentially lead to further damage.

8. How do you fix a P100B code on a Nissan?

Repairs may include replacing the VVEL actuator, repairing or replacing damaged wiring, updating the VVEL control module software, or addressing oil pressure and quality issues.

9. Is the P100B code specific to Bank 2?

Yes, the P100B code specifically relates to a malfunction in the VVEL system on Bank 2, which is typically the side of the engine opposite Bank 1.

10. Can a faulty VVEL control module cause a P100B code?

Yes, a malfunctioning VVEL control module can fail to regulate the VVEL system properly, triggering the P100B code.

Discuss the causes and fixes for P100B Nissan OBDII Code

  • Engine starts normally and runs smoothly but RPM is barely above 1000. Sporadically increases to about 2100. Barely enough power to get to O'Reilly's to have the codes read. This code is indicated twice as is the associated P1093 code, also relating to the VVEL

  • What model and year is your vehicle?

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