P1138 MAZDA - Rear O2 Sensor Self Test Fault

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

P1138 MAZDA Possible Causes

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

First diagnose P1138 MAZDA code

    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 terminals.

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 widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

P1138 MAZDA Possible Symptoms

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

P1138 MAZDA Meaning

Rear O2 Sensor Self Test Fault is the generic description for the P1138 MAZDA code, but the manufacturer may have a different description. Currently we have no further information abouth the P1138 MAZDA OBDII code. Please post your question on the Q&A section for more information: AutoCodes.com Questions.
OBDII Code P1138 MAZDA - Rear O2 Sensor Self Test Fault - Engine-Codes.com

P1138 MAZDA More Information

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