AutoCodes – Lexus – P106B Lexus

P106B Lexus Code - Evaporative Emission System Pressure Sensor - Secondary Air Injection Pressure Sensor Correlation

Quick Answer

The code is designed to detect a deviation in the output characteristics of a pressure sensor. Common causes include Canister pressure sensor (canister assembly), Faulty Manifold absolute pressure sensor, Faulty Canister pressure sensor. 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
P106B Lexus indicates Evaporative Emission System Pressure Sensor - Secondary Air Injection Pressure Sensor Correlation.
Common causes
Common causes include Canister pressure sensor (canister assembly), Faulty Manifold absolute pressure sensor, Faulty Canister pressure sensor.
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 4,334
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 19, 2022
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Code P106B Lexus Description

The code is designed to detect a deviation in the output characteristics of a pressure sensor.
The pressure of the canister pressure sensor and manifold absolute pressure sensor is monitored 55 minutes after the power switch is turned off. If there is a difference in the pressures, the MIL is illuminated (2 trip detection logic).
OBDII Code P106B Lexus - Evaporative Emission System Pressure Sensor - Secondary Air Injection Pressure Sensor Correlation - AutoCodes.com
P106B Lexus Code - Evaporative Emission System Pressure Sensor - Secondary Air Injection Pressure Sensor Correlation

What are the Possible Causes of the DTC P106B Lexus?

  • Canister pressure sensor (canister assembly)
  • Faulty Manifold absolute pressure sensor
  • Faulty Canister pressure sensor
  • Canister pressure sensor harness is open or shorted
  • Canister pressure sensor circuit poor electrical connection

How to Fix the DTC P106B Lexus?

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 P106B Lexus 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 P106B Lexus code?

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Need Help with the 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 P106B Lexus Code

What does the OBD-II code P106B mean for a Lexus?

The code P106B indicates a correlation issue between the Evaporative Emission System Pressure Sensor and the Secondary Air Injection Pressure Sensor.

What are the symptoms of P106B in a Lexus?

Symptoms may include the check engine light turning on, reduced fuel efficiency, difficulty passing emissions tests, or erratic engine performance.

What causes the P106B code in a Lexus?

Common causes include a faulty pressure sensor, wiring or connector issues, a vacuum leak, or a malfunction in the secondary air injection system.

Can I still drive my Lexus with the P106B code?

While the car may still be drivable, ignoring the code can lead to worsened emissions performance and potentially damage other components over time.

How can I diagnose the P106B code in a Lexus?

Use an OBD-II scanner to confirm the code and inspect the pressure sensor, wiring, and secondary air injection system for damage or malfunctions.

How much does it cost to fix the P106B code on a Lexus?

The repair cost can vary widely depending on the issue, ranging from $100 for sensor replacement to higher amounts if wiring or system repairs are needed.

Can a faulty gas cap trigger the P106B code in a Lexus?

While unlikely, a loose or damaged gas cap can sometimes contribute to evaporative system pressure issues and should be checked as a precaution.

How do I reset the P106B code after repairs?

After repairs, clear the code using an OBD-II scanner and drive the vehicle to ensure the issue is resolved and the code does not reappear.

Will the P106B code affect emissions testing on my Lexus?

Yes, the code indicates an emissions-related problem and can cause your vehicle to fail an emissions test until resolved.

Is replacing the pressure sensor the only solution for the P106B code?

No, other solutions include repairing wiring, fixing vacuum leaks, or addressing secondary air injection system issues depending on the exact cause.

Discuss the causes and fixes for P106B Lexus OBDII Code

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