DTC P0141: Ho2S Bank No. 1 (Left Bank) Sensor No. 2 (B1 S2) Circuit Malfunction: Condition

DTC is set when Power Control Module (PCM) detects HO2S B1 S2 heater circuit voltage input is 13.8 volts or higher, or 8.7 volts or lower. MIL is illuminated when PCM detects malfunction during 2 consecutive drive cycles. Possible causes are:

• HO2S B1 S2 malfunction.
• PCM malfunction.