P0135 — o2 sensor heater circuit (bank 1, sensor 1) If your vehicle is showing a p0135 code, this video explains what it means. The pcm detected a malfunction in the heater circuit of the.
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Code p0135 is most often caused by issues within the heater circuit of the upstream oxygen sensor on bank 1
Learn all about the p0135 code, what causes oxygen sensor heater circuit malfunction, and how to diagnose and fix.
