P1031 - Air Fuel Ratio Sensor 1 Heater Control Circuit Low Bank 1

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3  What does this mean?

P1031 Possible Causes

  • Faulty Air Fuel Ratio Sensor 1 Bank 1
  • Air Fuel Ratio Sensor 1 harness is open or shorted
  • Air Fuel Ratio Sensor 1 circuit poor electrical connection

How do I fix code P1031

    Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Cost of diagnosing the P1031 code

    Labor: 1.0

    The cost of diagnosing the P1031 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

When is the P1031 code detected?

The current amperage in the heated air fuel ratio (A/F) sensor 1 heater circuit is out of the normal range. An excessively low voltage signal is sent to Engine Control Module (ECM) through the heated air fuel ratio (A/F) sensor 1 heater.

P1031 Possible Symptoms

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

P1031 Meaning

The Engine Control Module (ECM) performs ON/OFF duty control of the Air Fuel Ratio (A/F) sensor 1 heater corresponding to the engine operating condition to keep the temperature of A/F sensor 1 element at the specified range.
OBDII Code P1031 - Air Fuel Ratio Sensor 1 Heater Control Circuit Low Bank 1 - Engine-Codes.com

P1031 More Information

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P1031 Information for specific makes

  • P1031 AUDI Intake Manifold Air Control Valve Position Sensor Specification Not Attained
  • P1031 BUICK HO2S Heater Current Monitor Control Circuit Banks 1 and 2 Sensor 1
  • P1031 CADILLAC HO2S Heater Current Monitor Control Circuit Banks 1 and 2 Sensor 1
  • P1031 CHEVROLET HO2S Heater Current Monitor Control Circuit Banks 1 and 2 Sensor 1
  • P1031 DODGE HO2S Heater Current Monitor Control Circuit Banks 1 and 2 Sensor 1
  • P1031 GMC HO2S Heater Current Monitor Control Circuit Banks 1 and 2 Sensor 1
  • P1031 INFINITI Air Fuel Ratio Sensor 1 Heater Control Circuit Low Bank 1
  • P1031 MERCEDES-BENZ Heated Oxygen Sensor Malfunction
  • P1031 NISSAN Air Fuel Ratio Sensor 1 Heater Control Circuit Low Bank 1
  • P1031 OLDSMOBILE HO2S Heater Current Monitor Control Circuit Banks 1 and 2 Sensor 1
  • P1031 PONTIAC HO2S Heater Current Monitor Control Circuit Banks 1 and 2 Sensor 1
  • P1031 SAAB Injector 3 Low Output
  • P1031 SATURN HO2S Heater Current Monitor Control Circuit Banks 1 and 2 Sensor 1
  • P1031 VOLKSWAGEN Intake Manifold Air Control Valve Position Sensor Specification Not Attained

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