Engine-Codes - Gmc - P1139 GMC

P1139 GMC - HO2S Insufficient Switching Bank 1 Sensor 2

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

P1139 GMC Possible Causes

  • Faulty HO2S Bank 1 Sensor 2
  • HO2S Bank 1 Sensor 2 harness is open or shorted
  • HO2S Bank 1 Sensor 2 circuit poor electrical connection

How is the P1139 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.

What is the cost to diagnose the P1139 GMC code

Labor: 1.0

The cost to diagnose the P1139 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.
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Possible Symptoms

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

P1139 GMC Meaning

HO2S Insufficient Switching Bank 1 Sensor 2 is the generic description for the P1139 Gmc code, but the manufacturer may have a different description for your model and year vehicle. Currently, we have no further information abouth the P1139 Gmc OBDII code.

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More Information

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