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International Automotive Technicians Network

Diagnostic Trouble Code Index for May 2023


Note: This is a professional automotive technician's resource.
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Diagnostic Trouble Codes (DTC)
Count Trouble Code Sample Definition Manufacturers
4P0300Multiple Cylinder Misfire DetectedChevrolet, Ford, GMC, Jeep
2P0171Fuel System Lean (Bank 1)Ford, Volvo
2P0172Fuel System Rich (Bank 1)Chevrolet, Ford
2P0304Cylinder 4 Misfire DetectedBMW, Mercedes-Benz
2P0441EVAP Purge System PerformanceChrysler, Lexus
1C121CTorque request signal deniedJeep
1P0019Crankshaft Position - Exhaust Camshaft Position Correlation (Bank 2)Jeep
1P0042p208064-Mercedes-Benz
1P0101MAF Sensor PerformanceNissan
1P0133Heated Oxygen Sensor (Bank 1 Sensor 1) Slow ResponseJeep
1P0141Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Circuit MalfunctionHonda
1P0175Fuel System Rich (Bank 2)Ford
1P0299Turbocharger Engine UnderboostJeep
1P0301Cylinder 1 Misfire DetectedMercedes-Benz
1P0302Cylinder 2 Misfire DetectedMercedes-Benz
1P0305Cylinder 5 Misfire DetectedBMW
1P0306Cylinder 6 Misfire DetectedBMW
1P0344Camshaft Position Sensor Signal IntermittentChrysler
1P0369Camshaft Position Sensor Circuit Intermittent (Bank 1 Sensor 2)Chrysler
1P0411Secondary AIR System Incorrect Airflow DetectedPontiac
1P0420Catalyst Efficiency Below Normal (Bank 1)Chevrolet
1P0442EVAP System Small Leak DetectedLincoln
1P0446EVAP Vent System PerformanceLexus
1P0455EVAP System Large Leak DetectedChevrolet
1P050ACold Start Idle Air Control System PerformanceMercedes-Benz
1P050DCold Start Rough IdleChevrolet
1P060APCM Internal Control Module ErrorHonda
1P124C5 injector high control circuit shorted to control circuitChevrolet
1P1564ASCD Steering Switch Circuit MalfunctionNissan
1P2080Exhaust Gas Temperature Sensor Circuit Performance (Bank 1 Sensor 1)Mercedes-Benz
1P2096Downstream Fuel System Lean - HO2S-12 (Bank 1 Sensor 2)Jeep
1P2110Electronic Throttle Control - Forced Limited RPMGMC
1P2112Electronic Throttle Control - Unable To OpenFord
1P2181Cooling System PerformanceAudi
1P2188Fuel Trim System Rich At Idle (Bank 1)Buick
1P2190Fuel Trim System Rich At Idle (Bank 2)Buick
1P219Efuel air mix cyl 3 unbalanced sporadicMercedes-Benz
1P249DReductant Injection control at limit - Flow to LowChevrolet
1P2556Engine coolant level sensor/ switch circuitAudi
1P4047P042ffa-Mercedes-Benz
1P6A90p040473-Mercedes-Benz
1U0020Can C bus off perfromanceJeep
1U0137ip moduleChevrolet
1U0191pcm lost communication with fuel pump moduleChevrolet
1U1260Data Circuit MessageAudi
1U1407Implausible Maximum Engine Torque Request Signal ReceivedBuick