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DTC P0141: O2 Heater Circuit (Bank 1, Sensor 2)

P0141 - O2 HEATER CIRCUIT (BANK 1, SENSOR 2)

Description:  This DTC sets when the current draw exceeds a calibrated limit or an open or short circuit is detected.
Possible Causes: 
  • HO2S heater circuit short to voltage
  • VPWR circuit open
  • GND circuit open
  • Low battery voltage
  • Water in the harness connector
  • Corrosion
  • Incorrect connections
  • Damaged HO2S heater
Diagnostic Aids:  Inspect the connectors for signs of damage, water ingress, or corrosion.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST DW .
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