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P0157 Diagnostic Trouble Code Discussion for September 2006

Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit Low Voltage

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Trouble Ticket Help Requests for DTC P0157
Help Request Posted
1999 Chevrolet Silverado 1500 5.3L MIL Lamp on VIN: 1GCEK14T7X
P0157: Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit Low Voltage. When we still had the same readings of low voltage at the rear O2s I unplugged the conector at the O2 and checked pins. The sensor wire (purple) and the tan wire which is grounded in the sensor both have 5 volt on them. We replaced the computer with a new one ...
September 12, 2006
2002 Chevrolet Silverado 2500 6.0L MIL Lamp on VIN: 1GCHK29U02
P0157: Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit Low Voltage. this truck resets this code intermitantly.have replaced rear sensor,ran new wires from pcm to sensor ,changed pcm and still has lower reading than bank 1 sensor 2. sometimes will take days to make light come back on. thank you for now
September 13, 2006