FixVault
Home
›
Subaru
›
2019
›
WRX STI
›
Repair and Diagnosis
›
Engine Performance
›
System
›
Engine Control System (Diagnostics) (STI) (1 Of 4)
›
Diagnostic Procedure With Diagnostic Trouble Code (DTC)
›
DTC P0141: O2 Sensor Heater Circuit Bank 1 Sensor 2
›
Execution Condition
Execution Condition
Secondary parameters
Execution condition
Battery voltage
≥ 10.9 V
Elapsed time after starting the engine
≥1000 ms
A/F sensor element impedance
≤35Ω
A/F sensor heater control duty
≤75%
Rear oxygen sensor heater control duty
< 75%