P0057 Infiniti Code - HO2S22 Heater Control Circuit Low
Quick Answer
The P0057 code for Infiniti vehicles indicates an issue with the HO2S22 (Heated Oxygen Sensor 2 Bank 2) heater control circuit being low. Common causes include Faulty HO2S22 sensor, Damaged wiring or connectors in the sensor circuit, Issues with the engine control module. 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
- P0057 Infiniti indicates HO2S22 Heater Control Circuit Low.
- Common causes
- Common causes include Faulty HO2S22 sensor, Damaged wiring or connectors in the sensor circuit, Issues with the engine control module.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P0057 Infiniti Description
The P0057 code for Infiniti vehicles indicates an issue with the HO2S22 (Heated Oxygen Sensor 2 Bank 2) heater control circuit being low. This sensor is responsible for monitoring the oxygen levels in the exhaust gases to ensure the engine is running efficiently. The heater control circuit is designed to keep the sensor at an optimal operating temperature for accurate readings. When this circuit is detected to be low, it can affect the sensor's performance and lead to incorrect readings being sent to the engine control module.
Common Causes of P0057 Infiniti
- Faulty HO2S22 sensor
- Damaged wiring or connectors in the sensor circuit
- Issues with the engine control module
- Electrical problems such as blown fuses or relays
- Exhaust leaks affecting sensor readings
Symptoms of P0057 Infiniti
- Check Engine Light is illuminated
- Decreased fuel efficiency
- Rough idling or stalling
- Poor engine performance
- Increased emissions
How to Fix P0057 Infiniti
- Begin by performing a visual inspection of the HO2S22 sensor and its wiring for any visible damage.
- Test the sensor using a multimeter to check for proper resistance and voltage output.
- Replace the HO2S22 sensor if it is found to be faulty.
- Check and repair any damaged wiring or connectors in the sensor circuit.
- Clear the diagnostic trouble codes and perform a test drive to ensure the issue has been resolved.
Cost to Fix P0057 Infiniti
The typical repair costs for addressing the P0057 code on an Infiniti vehicle can range from $150 to $400, depending on the specific cause of the issue and whether any parts need to be replaced. It's important to note that labor rates at auto repair shops can vary, so it's recommended to inquire locally for a more accurate estimate. Additionally, the cost of the oxygen sensor itself can vary based on the make and model of the vehicle.
Tech Notes for P0057 Infiniti
When is the Code Detected?
Need more information about the P0057 Infiniti code?
Need more information on how to fix the P0057 Infiniti code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0057 Infiniti code diagnosed by a professional: Find a repair shop in your area
Information for Specific Infiniti Models
- P0057 2003 Infiniti G35 — HO2S22 Heater Control Circuit Low
- P0057 2004 Infiniti G35 — HO2S22 Heater Control Circuit Low
- P0057 2005 Infiniti G35 — HO2S22 Heater Control Circuit Low
- P0057 2006 Infiniti G35 — HO2S22 Heater Control Circuit Low
Frequently Asked Questions about P0057 Infiniti Code
1. What does the OBDII code P0057 mean on an Infiniti?
P0057 indicates a problem with the Heater Control Circuit Low for the downstream oxygen sensor (HO2S22) on Bank 2.
2. What are the common symptoms of code P0057 in an Infiniti?
Symptoms may include a check engine light, reduced fuel efficiency, failed emissions tests, or no noticeable performance changes in some cases.
3. What causes the P0057 code on an Infiniti?
Common causes include a faulty oxygen sensor, damaged wiring or connectors in the heater circuit, a blown fuse, or a malfunctioning powertrain control module (PCM).
4. How do I diagnose the P0057 code on my Infiniti?
Check the wiring and connectors for damage or corrosion, test the oxygen sensor heater element with a multimeter, and ensure proper voltage and ground at the sensor.
5. Can I drive my Infiniti with a P0057 code?
While it may be safe to drive short-term, ignoring the issue can lead to increased emissions, reduced fuel economy, or damage to other components.
6. How do I fix the P0057 code on my Infiniti?
Repairs might include replacing the oxygen sensor, repairing damaged wiring, replacing a blown fuse, or, in rare cases, replacing the PCM.
7. How much does it cost to repair a P0057 code on an Infiniti?
Repair costs vary, but replacing a downstream oxygen sensor typically costs $100-$300, including parts and labor.
8. Which oxygen sensor is affected by the P0057 code in an Infiniti?
The P0057 code refers to the Bank 2 Sensor 2, which is the downstream oxygen sensor on the side of the engine opposite Cylinder 1.
9. Can a bad oxygen sensor cause the P0057 code?
Yes, a faulty oxygen sensor is one of the most common causes of the P0057 code.
10. Will clearing the P0057 code fix the problem on my Infiniti?
Clearing the code will turn off the check engine light temporarily, but the issue will return if the underlying problem isn’t addressed.
Discuss the causes and fixes for P0057 Infiniti OBDII Code
Code P0057 Infiniti comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.