DTC Set Criteria

Engine coolant temperature is more than 68°F (20°C). Front HO2S (2.4L; 3.0L Federal) or right bank front HO2S (3.0L California) heater is on. Battery voltage is 11-16 volts. Code will set if heater current is lower than .2 amp, or more than 3.5 amps, for 6 seconds. One monitor runs each drive cycle.