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Ron Z.
Ron Z., - Chevy Tech -
Category: Chevy
Satisfied Customers: 18775
Experience:  18+yrs experience. State Inspector and Chevy Diagnostics
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Throwing p135 and141 codes after an accident, p0135 p0141

Customer Question

throwing p135 and141 codes after an accident
JA: Just to clarify, what's the exact code? And have you tried to reset it?
Customer: p0135 p0141 yes cleared with scanner but come back on
JA: What is the model/year of your Chevy?
Customer: 2014chevy equinox
JA: What year is your Equinox?
Customer: 2014
JA: Are you fixing your Equinox yourself? What have you tried so far?
Customer: nothing except clearing with scanner
JA: Anything else you want the mechanic to know before I connect you?
Customer: no
Submitted: 10 months ago.
Category: Chevy
Expert:  Ron Z. replied 10 months ago.

Hi! Welcome to JustAnswer. I'm Ron Z and I'll be helping you with your question today.

These codes are pointing to the rear oxygen sensors. Specifically, with the internal heaters for the sensors. It's very uncommon for both sensors to fail at the same time. Very likely, there was damage done to the sensor's wire harnesses during the accident. First, check the fuse #41 in the under-hood fuse block. Should be labeled as "O2 SNSR POST". If the fuse is good, then the wiring harness should be carefully inspected for any damaged, pinched or broken wires. If you are absolutely sure the wiring has no issues, then the problem may very well lie in the ECM (on-board computer). Please remember to leave a rating using the 'stars' or click 'Accept'. A 5-star rating is much appreciated! Rating or accepting my answer does not cost you extra.

Expert:  Ron Z. replied 10 months ago.

Hi! I noticed this thread was still open, so I wanted to check in and see if there was anything else I could do for you on this issue? Any other questions you had? Was there something you wanted addressed that I may have missed in my answer? Did you find my answer helpful?

Expert:  Ron Z. replied 10 months ago.