Engine-Codes - Subaru - P1155 SUBARU

P1155 SUBARU - HO2S21 Sensor Circuit Range/Performance High

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

P1155 SUBARU Possible Causes

  • Faulty O2 Sensor HO2S21
  • O2 Sensor HO2S21 harness is open or shorted
  • O2 Sensor HO2S21 circuit poor electrical connection

How do I fix code P1155 SUBARU?

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.

Cost of diagnosing the P1155 SUBARU code

Labor: 1.0

The cost of diagnosing the P1155 SUBARU 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)

P1155 SUBARU Meaning

HO2S21 Sensor Circuit Range/Performance High is the generic description for the P1155 Subaru code, but the manufacturer may have a different description for your model and year vehicle. Currently, we have no further information abouth the P1155 Subaru OBDII code.

Still have questions? Please post your question on our Comments Section of the main page for more information.


P1155 SUBARU More Information

Need more information on how to fix the P1155 SUBARU code?
Get Access to Factory Service Manuals

Need more help?

Get the P1155 Subaru code diagnosed by a professional: Find a repair shop in your area