P0138

The Honda Accord is displaying a check engine light accompanied by trouble code P0138, indicating a high voltage signal from the oxygen sensor.

The P0138 code indicates a high voltage signal from the oxygen sensor, specifically the bank 1 sensor 2, in a Honda Accord 10th Generation (2018-2022). This may lead to poor fuel economy and increased emissions.

The Honda Accord 9th Generation (2013-2017) is experiencing a P0138 code, indicating a high voltage signal from the O2 sensor circuit, specifically relating to the Bank 1 Sensor 2.

The P0138 code on a 2013-2017 Honda Accord indicates that the Engine Control Module (ECM) has detected a high voltage signal from the oxygen sensor circuit, typically related to the downstream oxygen sensor.