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P2A01 - O2 Circuit Range/Performance Bank 1, Sensor 2

DTC DESCRIPTION P2A01 - O2 CIRCUIT RANGE/PERFORMANCE BANK 1, SENSOR 2

Description:  This DTC sets when the heated oxygen sensor bank 1, sensor 2 (HO2S12) voltage is out of range low for a calibrated period of time.
Possible Causes: 
  • Crossed HO2S12 and SIGRTN circuits
  • Corrosion
  • Incorrect connections
  • Contaminated HO2S12
  • Deteriorating HO2S12
  • Damaged HO2S12
Diagnostic Aids:  Inspect the connectors for signs of damage, water intrusion or corrosion.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to Pinpoint Test DW .