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 …

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.

Jun 5, 2024 · 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 …

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.

The purpose of code P0158 is to track the amount of time the rear Oxygen Sensor remains in a phase that indicates low levels of oxygen. If it stays in this 'rich phase' ( high levels of oxygen) …

The P0158 code stands for “O2 Sensor Circuit High Voltage (Bank 2, Sensor 2).” It shows that the powertrain control module (PCM) detects a high voltage signal from the oxygen sensor located …

Sep 17, 2025 · Learn all about the P0158 code, what causes high voltage in the O2 sensor circuit, and how to diagnose and fix common issues to maintain optimal engine performance.

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.