October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

DTC P0137: General Description

Courtesy of HONDA, U.S.A., INC.

The secondary heated oxygen sensor (secondary HO2S (sensor 2)) detects the oxygen density in the exhaust gas and converts it into electrical signals. If the secondary HO2S (sensor 2) output voltage is a specified value for a set time, the powertrain control module (PCM) detects a malfunction and stores a DTC.