Join Now
International Automotive Technicians Network

P0157 Diagnostic Trouble Code Discussion for November 2014

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


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P0157
Help Request Posted
2005 Chevrolet Tahoe LS 5.3L MIL Lamp on VIN: 1GNEK13T55
P0157: Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit Low Voltage. ... code only. customer opted for walker aftermarket Y-pipe with 2 cats built in. Truck came back 2 weeks later with P0157 low voltage B2S2 oxygen sensor. Installed oem Delco sensor. 2 weeks later P0157 is back. Scan tool shows voltage stays low on B2S2 even a...
November 10, 2014