× 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

P0138 Diagnostic Trouble Code Discussion for August 2005

Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High 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 P0138
Help Request Posted
1995 Jaguar Vanden Plas 4.0L MIL Lamp on VIN: SAJKX1748S
P0138: B1S1 voltage high. Thanks for taking your time to read this post. This XJ6 came in yesterday with no drivability complaint, just a MIL light on and the need for an Ohio E check. Hooked up scan tool and Pulled codes and found po420,430 and po138. Check O2 sensor operation(w/ scan...
August 11, 2005
2001 Nissan Pathfinder SE 3.5L MIL Lamp on VIN: JN8DR0PY11
P0138: Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Input (Rich Shift). ... Code p0138 was set as a pending code. The generic OBD II scan tool stated the sensor voltage was high. Mithell on demand code description states sensor voltage too low. Sensor voltage is low it switches between 0 and 150 mv at crusing speeds. On start up v...
August 31, 2005