SPONSORED LINKS

Replaced O2 sensors cannot clear codes

Tiny
BARENNA12
  • MEMBER
  • 2009 MAZDA 6
  • 3.6L
  • V6
  • 2WD
  • AUTOMATIC
  • 189,000 MILES
I replaced the O2 sensors, but cannot clear the error codes in the ECU. I tried 'clear codes' using a diagnostic tool and I tried disconnecting the battery and draining it. The codes remain in the ECU without starting the car up.
Thursday, November 16th, 2017 AT 8:22 AM

2 Replies

Tiny
PATENTED_REPAIR_PRO
  • MECHANIC
  • 1,853 POSTS
If you cannot clear the codes, then most likely that means that replacing the O2 sensors did not fix the problem. Error codes do not always mean a sensor is bad, it just refers to the circuit, so it could be a problem with the circuit wiring.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Thursday, November 16th, 2017 AT 2:06 PM
Tiny
STEVE W.
  • MECHANIC
  • 13,577 POSTS
What are the actual codes you have? What tool are you using to clear them?
Was this
answer
helpful?
Yes
No
Thursday, November 16th, 2017 AT 2:18 PM

Please login or register to post a reply.

Related Oxygen Sensor Replace/Remove Content

Oxygen Sensor Replacement
VIDEO
Oxygen Sensor Replacement
Instructional repair video
Oxygen Sensor Replacement
GUIDE
Oxygen Sensor Replacement
An oxygen or lambda sensor is used to determine the engine exhaust mixture which can then be controlled by the computer. These sensors are equipped with a heater that can...
VIEW MORE

Sponsored links