AutoCodes.com | All About OBDII Engine Codes
AutoCodes - Infiniti - P0052 2005 Infiniti G35

P0052 2005 Infiniti G35 Code - Air Fuel Ratio Sensor 1 Heater Bank 2 Control Circuit High

- Code Popularity: 4,578 Views
- Repair Importance Level: 2/3
- Repair Difficulty Level: 2/3
Table of contents
Share on Facebook   Share on Twitter   Share on Linkedin

What are the Possible Causes of the DTC P0052 2005 Infiniti G35?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Air-Fuel Ratio (A/F) Sensor Bank 2 Sensor 1
  • Air-Fuel Ratio (A/F) Sensor Bank 2 Sensor 1 harness is open shorted to ground
  • Air-Fuel Ratio (A/F) Sensor Bank 2 Sensor 1 circuit poor electrical connection
  • Faulty Engine Control Module (ECM)
⚠ Does your Infiniti have Safety Recalls? → Check here

How to Fix the DTC P0052 2005 Infiniti G35?

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

Code Tech Notes

The code means that there is a problem with the heater element circuit of the heated oxygen sensor. Water getting inside the heated oxygen sensor connector can caused the heated oxygen sensor fuse to blow, which is a very common problem for this type codes. Before replacing the sensor, check for the condition of the heated oxygen sensor fuse and connectors.

Search for P0052 2005 Infiniti G35 Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0052 2005 Infiniti G35 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

When is the Code Detected?

The P0052 is set when the ECM detects an excessively low voltage through the heated oxygen sensor heater circuit

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code P0052 2005 Infiniti G35 Description

Air-Fuel Ratio (A/F)sensor need to reach a minimum operating temperature of 1200 degrees F to produce an accurate voltage signal. The faster the air-fuel ratio sensor reaches that temperature the faster the sensor will start sending an accurate signal to the Engine Control Module (ECM).
In order to achieve the require temperature, a heater element is included inside the air-fuel ratio sensor. The ECM controls the air-fuel ratio sensor heater element based on signals from the engine coolant temperature and engine load. The ECM controls the heater element circuit by allowing current flow to ground.
The ECM monitors the voltage signal received through the heater element circuit and determines the state of the circuit by comparing the voltage detected with the factory specifications.

OBDII Code P0052 2005 Infiniti G35 - Air Fuel Ratio Sensor 1 Heater Bank 2 Control Circuit High - AutoCodes.com
P0052 2005 Infiniti G35 Code - Air Fuel Ratio Sensor 1 Heater Bank 2 Control Circuit High

Need More Information on the Code?

Need more information on how to fix the P0052 2005 Infiniti G35 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0052 2005 Infiniti G35 code diagnosed by a professional: Find a repair shop in your area

Code P0052 2005 Infiniti G35 comments

Help us improve AutoCodes.com. Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the P0052 2005 Infiniti G35 code? Have you replaced any parts?
Any information is appreciated. Thanks