Engine-Codes - Gmc - P1031 GMC

P1031 GMC - HO2S Heater Current Monitor Control Circuit Banks 1 And 2 Sensor 1

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3  What is this?
Table of contents

P1031 GMC Possible Causes

  • Faulty Heated Oxygen Sensor Bank 1 or 2
  • Heated Oxygen Sensor Bank 1 or 2 harness is open or shorted
  • Heated Oxygen Sensor Bank 1 or 2 circuit poor electrical connection

How is the P1031 GMC code repair?

Start by checking 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.

Tech Notes

Heated Oxygen Sensor (HO2S)

What is the cost to diagnose the P1031 GMC code

Labor: 1.0

The cost to diagnose the P1031 GMC 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.

Possible Symptoms

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

P1031 GMC Meaning

The Powertrain Control Module (PCM) monitors the Heated Oxygen Sensor Bank 1 or 2. The PCM sets the OBDII code when the Heated Oxygen Sensor Bank 1 or 2 is not to factory specifications.

More Information

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