Join Now
International Automotive Technicians Network

P0134 Diagnostic Trouble Code Discussion for June 2012

Heated Oxygen Sensor (Bank 1 Sensor 1) Signal Remains At Center


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 P0134
Help Request Posted
2006 Mazda 3 S 2.3L MIL Lamp on VIN: JM1BK12406
P0134: Heated Oxygen Sensor (Bank 1 Sensor 1) Lack Of Activity. we installed original o2, customer still had. it appears that pcm is defective or terminals have poor contact. We need some ideas how to check contacts to pcm from harness side, as pcm has been replaced and 02 sensor has also. With harness disconnected at both...
June 29, 2012
2006 Mazda 3 S 2.3L MIL Lamp on VIN: JM1BK12406
P0134: Heated Oxygen Sensor (Bank 1 Sensor 1) Lack Of Activity. we installed original o2, customer still had. it appears that pcm is defective or terminals have poor contact. We need some ideas how to check contacts to pcm from harness side, as pcm has been replaced and 02 sensor has also. With harness disconnected at both...
June 29, 2012