P0059 Chrysler HO2S21 Heater Control Circuit Low/High/Heater Resistance

Possible causes

– Faulty heated oxygen sensor
– Heated oxygen sensor harness open or shorted
– Heated oxygen sensor circuit poor connection

What about the obd code?

Heater current requirements too low or high in the heated oxygen sensor (HO2S) heater control circuit

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)