FixVault

P2A01 - O2 Sensor Circuit Range/Performance (Bank 1 Sensor 2)

DTC DESCRIPTION P2A01 - O2 SENSOR 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.