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9,253 diagnostic guides

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Find codes by symptomChoose what you notice to search matching code guides.

Rough idle or shakingVibration while stopped Hard to startLong cranking or no-start Engine stallsCuts out at idle or on the road Hesitates or loses powerSlow response when accelerating Battery light is onCharging system warning Harsh gear changesDelayed or rough shifting

A symptom can have several causes. Treat matching codes as clues and follow the diagnostic checks in each guide.

Electrical & Charging System Low priority P · Powertrain Clear all

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Engine1049 Emissions515 Fuel1016 Sensors & Electronics2110 Transmission866 Electrical & Charging1797 Body & Restraints193 Chassis & Brakes479 Network & Communication1228

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All severities9253 Low priority305 Check soon8256 Urgent621

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All families9253 P · Powertrain7353 B · Body193 C · Chassis479 U · Network1228

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These are generic OBD2 definitions. Exact make, model, engine, and year compatibility will appear after vehicle-fitment data is added.

Diagnostic codes

Showing 1–22 of 22

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P0D74A/C Compressor Control Module InternalTemperature Sensor A Circuit Intermittent/ErraticLow priorityElectrical & Charging System45–120 minutes for initial diagnosisP0D74 concerns a/c compressor control module internaltemperature sensor a circuit intermittent/erratic. Learn what this fault indicates and where to begin diagnosis.P0D75A/C Compressor Control Module Output Driver Temperature Sensor CircuitLow priorityElectrical & Charging System45–120 minutes for initial diagnosisP0D75 concerns a/c compressor control module output driver temperature sensor circuit. Learn what this fault indicates and where to begin diagnosis.P0D76A/C Compressor Control Module Output Driver Temperature Sensor PerformanceLow priorityElectrical & Charging System45–120 minutes for initial diagnosisP0D76 concerns a/c compressor control module output driver temperature sensor performance. Learn what this fault indicates and where to begin diagnosis.P0D77A/C Compressor Control Module Output Driver Temperature Sensor Circuit HighLow priorityElectrical & Charging System45–120 minutes for initial diagnosisP0D77 concerns a/c compressor control module output driver temperature sensor circuit high. Learn what this fault indicates and where to begin diagnosis.P0D78A/C Compressor Control Module Output Driver Temperature Sensor Circuit LowLow priorityElectrical & Charging System45–120 minutes for initial diagnosisP0D78 concerns a/c compressor control module output driver temperature sensor circuit low. Learn what this fault indicates and where to begin diagnosis.P0D79A/C Compressor Control Module Output Driver Temperature Sensor Circuit Intermittent/ErraticLow priorityElectrical & Charging System45–120 minutes for initial diagnosisP0D79 concerns a/c compressor control module output driver temperature sensor circuit intermittent/erratic. Learn what this fault indicates and where to begin diagnosis.P0EBCA/C Refrigerant Temperature Sensor A CircuitLow priorityElectrical & Charging System45–120 minutes for initial diagnosisP0EBC concerns a/c refrigerant temperature sensor a circuit. Learn what this fault indicates and where to begin diagnosis.P0EBDA/C Refrigerant Temperature Sensor A Circuit HighLow priorityElectrical & Charging System45–120 minutes for initial diagnosisP0EBD concerns a/c refrigerant temperature sensor a circuit high. Learn what this fault indicates and where to begin diagnosis.P0EBEA/C Refrigerant Temperature Sensor A Circuit LowLow priorityElectrical & Charging System45–120 minutes for initial diagnosisP0EBE concerns a/c refrigerant temperature sensor a circuit low. Learn what this fault indicates and where to begin diagnosis.P0EBFA/C Refrigerant Temperature Sensor A Range/PerformanceLow priorityElectrical & Charging System45–120 minutes for initial diagnosisP0EBF concerns a/c refrigerant temperature sensor a range/performance. Learn what this fault indicates and where to begin diagnosis.P0EC1A/C Refrigerant Temperature Sensor B CircuitLow priorityElectrical & Charging System45–120 minutes for initial diagnosisP0EC1 concerns a/c refrigerant temperature sensor b circuit. Learn what this fault indicates and where to begin diagnosis.P0EC2A/C Refrigerant Temperature Sensor B Circuit HighLow priorityElectrical & Charging System45–120 minutes for initial diagnosisP0EC2 concerns a/c refrigerant temperature sensor b circuit high. Learn what this fault indicates and where to begin diagnosis.P0EC3A/C Refrigerant Temperature Sensor B Circuit LowLow priorityElectrical & Charging System45–120 minutes for initial diagnosisP0EC3 concerns a/c refrigerant temperature sensor b circuit low. Learn what this fault indicates and where to begin diagnosis.P0EC4A/C Refrigerant Temperature Sensor B Range/PerformanceLow priorityElectrical & Charging System45–120 minutes for initial diagnosisP0EC4 concerns a/c refrigerant temperature sensor b range/performance. Learn what this fault indicates and where to begin diagnosis.P0EC6A/C Power Supply Relay Control Circuit/OpenLow priorityElectrical & Charging System45–120 minutes for initial diagnosisP0EC6 concerns a/c power supply relay control circuit/open. Learn what this fault indicates and where to begin diagnosis.P0EC7A/C Power Supply Relay Control Circuit LowLow priorityElectrical & Charging System45–120 minutes for initial diagnosisP0EC7 concerns a/c power supply relay control circuit low. Learn what this fault indicates and where to begin diagnosis.P0EC8A/C Power Supply Relay Control Circuit HighLow priorityElectrical & Charging System45–120 minutes for initial diagnosisP0EC8 concerns a/c power supply relay control circuit high. Learn what this fault indicates and where to begin diagnosis.P0EC9A/C Refrigerant Distribution Valve A Stuck/OpenLow priorityElectrical & Charging System45–120 minutes for initial diagnosisP0EC9 concerns a/c refrigerant distribution valve a stuck/open. Learn what this fault indicates and where to begin diagnosis.P0EE2A/C Refrigerant Distribution Valve B Stuck/OpenLow priorityElectrical & Charging System45–120 minutes for initial diagnosisP0EE2 concerns a/c refrigerant distribution valve b stuck/open. Learn what this fault indicates and where to begin diagnosis.P0EE3A/C Refrigerant Distribution Valve B Control Circuit/OpenLow priorityElectrical & Charging System45–120 minutes for initial diagnosisP0EE3 concerns a/c refrigerant distribution valve b control circuit/open. Learn what this fault indicates and where to begin diagnosis.P0EE4A/C Refrigerant Distribution Valve B Control Circuit LowLow priorityElectrical & Charging System45–120 minutes for initial diagnosisP0EE4 concerns a/c refrigerant distribution valve b control circuit low. Learn what this fault indicates and where to begin diagnosis.P0EE5A/C Refrigerant Distribution Valve B Control Circuit HighLow priorityElectrical & Charging System45–120 minutes for initial diagnosisP0EE5 concerns a/c refrigerant distribution valve b control circuit high. Learn what this fault indicates and where to begin diagnosis.