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P0031 2006 Toyota Corolla Code - Oxygen Sensor Heater Control Circuit Low Bank 1 Sensor 1 3ZZ-FE Engine

- Code Popularity: 11,809 Views
- Repair Importance Level: 2/3
- Repair Difficulty Level: 2/3
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What are the Possible Causes of the DTC P0031 2006 Toyota Corolla?

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 1 Sensor 1
  • Air-Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 harness is open shorted to ground
  • Air-Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 circuit poor electrical connection
  • Air-Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 circuit fuse
  • Faulty Engine Control Module (ECM)
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How to Fix the DTC P0031 2006 Toyota Corolla?

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.

Search for P0031 2006 Toyota Corolla Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0031 2006 Toyota Corolla 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 P0031 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 P0031 2006 Toyota Corolla 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 P0031 2006 Toyota Corolla - Oxygen Sensor Heater Control Circuit Low Bank 1 Sensor 1 3ZZ-FE Engine - AutoCodes.com
P0031 2006 Toyota Corolla Code - Oxygen Sensor Heater Control Circuit Low Bank 1 Sensor 1 3ZZ-FE Engine

Need More Information on the Code?

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Code P0031 2006 Toyota Corolla comments

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