× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network

P0156 Diagnostic Trouble Code Discussion for April 2014

Heated Oxygen Sensor (Bank 2 Sensor 2) Closed Loop Fuel Control

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 P0156
Help Request Posted
2004 Toyota Tundra Limited 4.7L MIL Lamp on VIN: 5TBDT48154
P0156: Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit Malfunction. Recuiring p0156, replace o2. Comes back occasinally o2 test good. Found tsb on replacing o2's and flash ecm. However checking mode 6 data ecu $10 test id $08 component $01 min value is 184, it is about to fail. The value is 185. Can't find info to identify fai...
April 14, 2014