LEMON Manuals: Even more car manuals for everyone
Home >> Lincoln >> 2018 >> MKZ Select, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 2277 (Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid) - DTC P0001 - P0209) >> Diagnostic Trouble Code (DTC) Charts And Descriptions >> P0030 - Ho2S Heater Control Circuit (Bank 1 Sensor 1)

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

WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2017 Lincoln Navigator, 2017 Lincoln MKZ, 2017 Lincoln MKX, 2017 Lincoln MKT, and 2017 Lincoln MKC. However, it is still accessible from the selected car via links, so may be relevant.
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 
KA GO to Pinpoint Test DW .
All others GO to Pinpoint Test DZ .
scientia non olet · About LEMON Manuals