Monitored & Set Conditions

Closed loop operation is monitored after engine is started and battery voltage is greater than 10.4 volts. DTC will set when engine temperature does not enable closed loop. failure time depends on start-up coolant temperature and ambient temperature. (i.e. 2 minutes for a start up temp of 50°F (10°C) or up to 10 minutes with a start up temp of 19°F (-28°C). This is a two trip fault.