AutoCodes – Toyota – P2240 2008 Toyota Camry

P2240 2008 Toyota Camry Code - Oxygen A/F Sensor Pumping Current Circuit Open Bank 2 Sensor 1

Quick Answer

The Air-Fuel ratio (A/F) sensor provides output voltage approximately equal to the existing air-fuel ratio. Common causes include Faulty Air/Fuel Sensor Bank 2, Air/Fuel Sensor Bank 2 harness is open or shorted, Air/Fuel Sensor Bank 2 circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means: P2240 2008 Toyota Camry indicates Oxygen A/F Sensor Pumping Current Circuit Open Bank 2 Sensor 1 .
Common causes: Common causes include Faulty Air/Fuel Sensor Bank 2, Air/Fuel Sensor Bank 2 harness is open or shorted, Air/Fuel Sensor Bank 2 circuit poor electrical connection.
Severity: Moderate - service should be scheduled soon.
Can I drive?: The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

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Code Popularity 5,174

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Oct 04, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2240 2008 Toyota Camry Description

The Air-Fuel ratio (A/F) sensor provides output voltage approximately equal to the existing air-fuel ratio.
The A/F sensor output voltage is used to provide feedback for the Engine Control Module (ECM) to control the air-fuel ratio.
With the A/F sensor output, the ECM can determine deviation from the stoichiometric air-fuel ratio and control proper injection time. If the A/F sensor is malfunctioning, the ECM is unable to accurately control air-fuel ratio.
The A/F sensor is equipped with a heater which heats the zirconia element. The heater is also controlled by the ECM. When the intake air volume is low (the temperature of the exhaust gas is low), current flows to the heater which heats the sensor to facilitate detection of accurate oxygen concentration.
The A/F sensor is a planar type. Compared to a conventional type, the sensor and heater portions are narrower. Because the heat of the heater is conducted through the alumina to zirconia (of the sensor portion), sensor activation is accelerated.

The code is output when there is an open or short in the A/F sensor circuit, or if A/F sensor output drops. To detect these problems, the voltage of the A/F sensor is monitored when turning the ignition switch to the ON position, and the admittance (admittance is an electrical term that indicates the ease of flow of current) is checked while driving. If the voltage of the A/F sensor is between 0.6 V and 4.5 V, it is considered normal. If the voltage is outside of the specified range, or the admittance is less than the standard value, the ECM will determine that there is a malfunction in the A/F sensor. If the same malfunction is detected in the next driving cycle, the MIL is illuminated and a DTC is set.

OBDII Code P2240 2008 Toyota Camry - Oxygen A/F Sensor Pumping Current Circuit Open Bank 2 Sensor 1 - AutoCodes.com — P2240 2008 Toyota Camry Code - Oxygen A/F Sensor Pumping Current Circuit Open Bank 2 Sensor 1

What does this mean?

What are the Possible Causes of the DTC P2240 2008 Toyota Camry?

Faulty Air/Fuel Sensor Bank 2
Air/Fuel Sensor Bank 2 harness is open or shorted
Air/Fuel Sensor Bank 2 circuit poor electrical connection
Air/Fuel Sensor Relay
Faulty Engine Control Module (ECM)

How to Fix the DTC P2240 2008 Toyota Camry?

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 P2240 2008 Toyota Camry 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 P2240 2008 Toyota Camry 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 P2240 2008 Toyota Camry Code

1. What are the common symptoms of OBDII code P2240 in a 2008 Toyota Camry?

- Common symptoms include poor fuel economy, rough idling, hesitation during acceleration, and an illuminated check engine light.

2. What does the OBDII code P2240 "Oxygen A/F Sensor Pumping Current Circuit Open Bank 2 Sensor 1" mean for a 2008 Toyota Camry?

- This code indicates a problem with the oxygen sensor on Bank 2, Sensor 1, where the circuit for the sensor pumping current is open.

3. What are the possible causes of OBDII code P2240 in a 2008 Toyota Camry?

- Possible causes include a faulty oxygen sensor, damaged wiring or connectors in the sensor circuit, or issues with the engine control module (ECM).

4. How can I diagnose the issue causing OBDII code P2240 in my 2008 Toyota Camry?

- To diagnose the problem, you can use a scan tool to monitor the oxygen sensor's voltage and resistance, check the sensor's wiring and connectors for damage, and perform a visual inspection of the sensor.

5. Is it safe to continue driving my 2008 Toyota Camry with OBDII code P2240 present?

- It is not recommended to drive your vehicle with this code active, as it can lead to decreased fuel efficiency and potentially cause damage to the catalytic converter over time.

6. What are the repair options for resolving OBDII code P2240 in a 2008 Toyota Camry?

- Repair options include replacing the oxygen sensor on Bank 2, Sensor 1, repairing any damaged wiring or connectors, and resetting the ECM to clear the code.

7. Can I fix the OBDII code P2240 issue in my 2008 Toyota Camry myself?

- If you have experience working on automotive electrical systems, you may be able to diagnose and repair the issue yourself. Otherwise, it is recommended to seek help from a qualified mechanic.

8. How much does it typically cost to repair OBDII code P2240 in a 2008 Toyota Camry?

- The cost of repairs can vary depending on the exact cause of the issue, but replacing the oxygen sensor and addressing any wiring issues can cost anywhere from $200 to $500 at a repair shop.

9. Will resetting the check engine light resolve OBDII code P2240 in a 2008 Toyota Camry?

- Simply resetting the check engine light will not fix the underlying issue causing the code. It is important to diagnose and repair the problem to prevent it from recurring.

10. How often does OBDII code P2240 occur in 2008 Toyota Camry vehicles?

- While the occurrence of this specific code may vary, issues related to oxygen sensors are relatively common in vehicles, including the 2008 Toyota Camry. Regular maintenance can help prevent such problems.