DTC 37: Closed Loop Control
If closed loop control is interrupted, probable cause is in front HO2S or circuit. For diagnostic procedure, refer to DTC 33, FRONT HEATED OXYGEN SENSOR (HO2S) or DTC 91, FRONT HEATED OXYGEN SENSOR (HO2S) HEATER
If closed loop control is interrupted, probable cause is in front HO2S or circuit. For diagnostic procedure, refer to DTC 33, FRONT HEATED OXYGEN SENSOR (HO2S) or DTC 91, FRONT HEATED OXYGEN SENSOR (HO2S) HEATER