Detailed information on troubleshooting and repairing a P0158 DTC code which refers to a high voltage in the number 2 O2 sensor circuit on bank 2. Also includes links to relevant forum topics on the code.

Code P0158 Description The O2 sensor, or oxygen sensor, is a crucial component of a vehicle's emissions system that monitors the oxygen levels in the exhaust gases. The P0158 diagnostic …

Feb 18, 2026 · Find out everything you need to know about the meaning, causes, and symptoms of the OBD-II code P0158 with this short but informative guide.

Jan 5, 2025 · What does the P0158 Oxygen Sensor Circuit High Voltage (Bank 2, Sensor 2) mean? P0158 code gets triggered when the Engine Control Module detects that the voltage from the oxygen …

A P0158 code is not typically serious. It simply means that there is a problem in the bank 2, sensor 2 circuit and the power control module (PCM) has stored a code for future reference.

Jul 14, 2025 · In this helpful guide, you'll learn what the P0158 engine code is, how to diagnose it, and how to fix it.

Jan 3, 2026 · Master the electrical diagnosis for the P0158 O2 sensor high voltage code. Follow our step-by-step guide to identify the root cause and complete the repair.

Mar 29, 2022 · Check engine light code P0158 means O2 Sensor Circuit High Voltage (Bank 2, Sensor 2). Find out how to fix it in this article!

Jun 23, 2025 · Learn what causes the P0158 O2 sensor code, how to diagnose it, and why ignoring it could damage your catalytic converter. Fix it before it costs more.

Oct 25, 2023 · If your car's ECM throws a P0158 trouble code, it's a good idea to resolve it quickly. Here's what causes code P0158 and how to fix it...