Engine-Codes - Cadillac - P1031 CADILLAC

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

- Code Popularity: 4,472 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
Table of contents

|What are the Possible Causes of the P1031 CADILLAC Code?

  • 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 to Fix the P1031 CADILLAC Code?

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.

|P1031 CADILLAC code tech notes

Heated Oxygen Sensor (HO2S)

|What is the cost to diagnose the P1031 CADILLAC code?

Labor: 1.0

The cost to diagnose the P1031 CADILLAC code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

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|What are P1031 CADILLAC code possible symptoms?

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

|What Does the P1031 CADILLAC Code Mean?

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.
HO2S Heater Current Monitor Control Circuit Banks 1 And 2 Sensor 1

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