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International Automotive Technicians Network

Diagnostic Trouble Code Index for July 2024

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.

Diagnostic Trouble Codes (DTC)
Count Trouble Code Sample Definition Manufacturers
1P0171Fuel System Lean (Bank 1)Toyota
1P025AFuel Pump Flow Control Module Enable Circuit MalfunctionChevrolet
1P0299Turbocharger Engine UnderboostFord
1P0300Multiple Cylinder Misfire DetectedFord
1P0301Cylinder 1 Misfire DetectedFord
1P0302Cylinder 2 Misfire DetectedFord
1P0305Cylinder 5 Misfire DetectedFord
1P0316Misfire Occurred In First 1,000 RevolutionsFord
1P0328Knock Sensor Circuit High Voltage (Bank 1)Toyota
1P0615Starter Relay Control Circuit MalfunctionChevrolet
1P0642Sensor Reference Voltage 1 Circuit LowRam
1P1618Sensor Reference Voltage 1 Circuit ErraticRam
1P1682Ignition 1 Switch Circuit 2 MalfunctionChevrolet
1P2122Accelerator Pedal Position Sensor 1 Circuit Low VoltageRam
1P2195Air Fuel Sensor (Bank 1 Sensor 1) Signal Stuck LeanFord
1P2635Fuel Pump Flow PerformanceChevrolet
1U0100Lost Communication With ECM/PCMChevrolet
1U0140Lost Communication With BCMChevrolet