P1031 OBD Trouble Code

1 result found

P1031 - GM
Type Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled

HO2S Heater Current Monitor Control

Location Bank 1 & 2 Sensor 1

Key on or engine running, system voltage from 9-16v, then the PCM detected an incorrect circuit condition for the commanded state of the HO2S Heater current monitor driver

Try also: https://www.obd-codes.com/p1031