DTC P0030 - Ho2S Heater Control Circuit (Bank 1 Sensor 1)

P0030 - HO2S HEATER CONTROL CIRCUIT (BANK 1 SENSOR 1)

Description:	The PCM controls the heater ON and OFF duty cycle to maintain a calibrated temperature. This DTC sets when the sensor does not warm up to the required temperature in a calibrated amount of time. This DTC also sets when the PCM is not able to maintain the required temperature after the sensor is warm.
Possible Causes:	UO2S11 circuit open (if equipped) UO2SGREF11 circuit open (if equipped) UO2SHTR11 circuit open (if equipped) UO2SHTR11 circuit short to voltage (if equipped) HTR11 circuit open (if equipped) HTR11 circuit short to ground (if equipped) VPWR circuit open Incorrect connections Damaged or corroded pins Exhaust temperature significantly higher than expected Damaged universal heated oxygen sensor bank 1, sensor 1 (HO2S11) (if equipped) Damaged HO2S11 (if equipped)
Diagnostic Aids:	Inspect the connectors for signs of damage, water intrusion or corrosion.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
EcoSport 1.5L, KA	GO to PINPOINT TEST DW .
All others	GO to PINPOINT TEST DZ .