DTC P0134: Heated Oxygen Sensor (Ho2S) No. 1 Circuit Activity Insufficient

This code will set when HO2S voltage does not exceed .45 volts for a specified time. For diagnostic test procedures, see DTC P0131: HEATED OXYGEN SENSOR (HO2S) NO. 1 CIRCUIT VOLTAGE LOW OR DTC P0132: HEATED OXYGEN SENSOR (HO2S) NO. 1 CIRCUIT VOLTAGE HIGH  .