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International Automotive Technicians Network

Diagnostic Trouble Code Index for December 2020

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
4P0171Fuel System Lean (Bank 1)Chevrolet, Ford, Toyota
3P0174Fuel System Lean (Bank 2)Ford
3P0401Insufficient EGR Flow DetectedBuick, Suzuki
2P0087Fuel Rail Pressure Too LowAudi, Volkswagen
2P0299Turbocharger Engine UnderboostFord, Isuzu
2P0316Misfire Occurred In First 1,000 RevolutionsFord
1B2948security system sensor power circuit highChevrolet
1B2958Security system sensor data circuit highChevrolet
1B2960Security system sensor data incorrect but validChevrolet
1B2961key in ign. circuit malfunctionChevrolet
1P0016Crankshaft/Camshaft Timing MisalignmentChevrolet
1P0017Crankshaft Position - Exhaust Camshaft Position CorrelationChevrolet
1P0089Fuel Pressure Regulator PerformanceChevrolet
1P0101MAF Sensor PerformanceGMC
1P0128Engine Coolant Temperature Below Thermostat Regulating TemperatureKia
1P0130Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit MalfunctionLincoln
1P0148Fuel Delivery ErrorDodge
1P0150Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit MalfunctionLincoln
1P0172Fuel System Rich (Bank 1)Dodge
1P0191Fuel Rail Pressure Sensor PerformanceRam
1P0234Turbocharger Engine OverboostFord
1P0300Multiple Cylinder Misfire DetectedMercedes-Benz
1P0302Cylinder 2 Misfire DetectedFord
1P0304Cylinder 4 Misfire DetectedFord
1P0306Cylinder 6 Misfire DetectedFord
1P0320No Crank Reference Signal To PCMFord
1P0340Camshaft Position Sensor Circuit MalfunctionFord
1P0410Secondary Air System PerformanceMercedes-Benz
1P0415Secondary Air Injection System Switching Valve 'B' Circuit MalfunctionMercedes-Benz
1P0442EVAP System Small Leak DetectedChevrolet
1P0452Fuel Tank Pressure Sensor Circuit Low VoltageChevrolet
1P0455EVAP System Large Leak DetectedToyota
1P0456EVAP System Very Small Leak DetectedInfiniti
1P1127ETCS Actuator Power Source Circuit MalfunctionFord
1P1151Heated Oxygen Sensor (Bank 2 Sensor 1) Indicates A/F Ratio Too LeanFord
1P1361ICM Ignition Control Circuit Low VoltageHonda
1P1366Top Dead Center Sensor 2 Circuit Intermittent SignalHonda
1P1604PCM Internal Dual-Port Ram Read/Write Integrity FailureToyota
1P228DFuel Pressure Regulator 1 control performanceChevrolet
1P240FEGR delayed reactionMercedes-Benz
1P4417Evap Purge flow actuator stuck onToyota
1P5052Idle air control systemLand Rover