AutoCodes - OBDII Code List - P1138 MAZDA

P1138 MAZDA - Rear O2 Sensor Self Test Fault

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

P1138 MAZDA Possible Causes

  • Faulty Rear O2 Sensor
  • Rear O2 Sensor harness is open or shorted
  • Rear O2 Sensor circuit poor electrical connection

How do I fix code P1138 MAZDA?

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.
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Cost of diagnosing the P1138 MAZDA code

Labor: 1.0

The cost of diagnosing the P1138 MAZDA code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

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

P1138 MAZDA Description

Rear O2 Sensor Self Test Fault is the generic description for the P1138 Mazda code, but the manufacturer may have a different description for your model and year vehicle. Currently, we have no further information abouth the P1138 Mazda OBDII code.

Still have questions? Please post your question on our Comments Section below for more information.

OBDII Code P1138 Mazda - Rear O2 Sensor Self Test Fault -

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