Join Now
International Automotive Technicians Network

P1271 Diagnostic Trouble Code Discussion for May 2012

Air Fuel Sensor (Bank 1 Sensor 1) Circuit No Activity


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 P1271
Help Request Posted
2002 Chevrolet Trailblazer LT 4.2L MIL Lamp on, Won't accelerate
P1271: Accelerator Pedal Position Sensor 1-2 Correlation. These 2 codes were in the system and wouldn't clear. Checked according to flow chart and it says the pedal position sensor is faulty. Replace sensor and problem still exists. When looking at pedal position sensor voltages one is at 4.96v and the other is at 5....
May 03, 2012
2002 Chevrolet Trailblazer LT 4.2L MIL Lamp on, Won't accelerate
P1271: Accelerator Pedal Position Sensor 1-2 Correlation. These 2 codes were in the system and wouldn't clear. Checked according to flow chart and it says the pedal position sensor is faulty. Replace sensor and problem still exists. When looking at pedal position sensor voltages one is at 4.96v and the other is at 5....
May 04, 2012
2002 Chevrolet Trailblazer LT 4.2L MIL Lamp on, Won't accelerate
P1271: Accelerator Pedal Position Sensor 1-2 Correlation. These 2 codes were in the system and wouldn't clear. Checked according to flow chart and it says the pedal position sensor is faulty. Replace sensor and problem still exists. When looking at pedal position sensor voltages one is at 4.96v and the other is at 5....
May 03, 2012
2002 Chevrolet Trailblazer LT 4.2L MIL Lamp on, Won't accelerate
P1271: Accelerator Pedal Position Sensor 1-2 Correlation. These 2 codes were in the system and wouldn't clear. Checked according to flow chart and it says the pedal position sensor is faulty. Replace sensor and problem still exists. When looking at pedal position sensor voltages one is at 4.96v and the other is at 5....
May 04, 2012