Search

Learn what P0633 means and how to diagnose intake air temperature sensor circuit issues P0633 Overview Code P0633 Code Type P Code Class P0 System Engine Severity Level Medium Emissions Related true Drivability Impact Major Diagnostic Protocol OBD2 Freeze Frame Useful true Code Definition Diagnostic trouble code P0633 indicates a malfunction in the intake air temperature sensor circuit Symptoms Poor acceleration; Check Engine Light Overview applies to this diagnostic code. Affected Systems On This Page Code Definition Symptoms Affected Systems Possible Causes Diagnostic Steps Drive Safety Notes More Resources Diagnostic Trouble Codes Diagnostic Q&A Automotive Knowledge Base All Diagnostic Products Intake air temperature sensor Possible Causes Faulty intake air temperature sensor; Wiring issues Diagnostic Steps 1 Inspect the intake air temperature sensor 2 Test sensor output Drive Safety Notes Improper air intake can reduce engine performance

Learn what P0128 means, common symptoms, causes, and diagnostic steps related to a thermostat operating below regulating temperature P0128 Overview Code P0128 Code Type P Code Class P0 System Engine Severity Level Low Emissions Related true Drivability Impact Minor Diagnostic Protocol OBD2 Freeze Frame Useful true Code Definition Diagnostic trouble code P0128 indicates that the engine coolant temperature is below the thermostat regulating temperature for too long during operation Symptoms Check Engine Light illuminated; Poor fuel economy; Heater not producing warm air Overview applies to this diagnostic code. Affected Systems On This Page Code Definition Symptoms Affected Systems Possible Causes Diagnostic Steps Drive Safety Notes More Resources Diagnostic Trouble Codes Diagnostic Q&A Automotive Knowledge Base All Diagnostic Products Engine cooling and emissions systems rely on proper thermostat operation Possible Causes Thermostat stuck open; Low coolant level; Faulty ECT sensor Diagnostic Steps 1 Confirm the fault code; 2 Monitor coolant temperature during warm-up; 3 Inspect thermostat operation; 4 Check coolant level and condition; 5 Replace the thermostat if necessary Drive Safety Notes Driving is generally safe, but prolonged operation may increase emissions and reduce efficiency

Learn what P0310 means, symptoms, causes, and diagnostic steps for start-up related engine misfires P0310 Overview Code P0310 Code Type P Code Class P0 System Engine Severity Level Medium Emissions Related true Drivability Impact Minor Diagnostic Protocol OBD2 Freeze Frame Useful true Code Definition Diagnostic trouble code P0310 indicates a misfire detected during engine start-up Symptoms Hard starting; Rough idle after start; Check Engine Light Overview applies to this diagnostic code. Affected Systems On This Page Code Definition Symptoms Affected Systems Possible Causes Diagnostic Steps Drive Safety Notes More Resources Diagnostic Trouble Codes Diagnostic Q&A Automotive Knowledge Base All Diagnostic Products Engine start-up combustion and emissions control Possible Causes Worn spark plugs; Fuel delivery issues; Ignition coil faults Diagnostic Steps 1 Inspect ignition components; 2 Check fuel pressure during start-up; 3 Clean or replace spark plugs; 4 Test ignition coils Drive Safety Notes Start-up misfires may affect reliability Repair promptly

Learn what P0480 means and how to diagnose cooling fan control circuit faults P0480 Overview Code P0480 Code Type P Code Class P0 System Engine Severity Level High Emissions Related false Drivability Impact Major Diagnostic Protocol OBD2 Freeze Frame Useful true Code Definition Diagnostic trouble code P0480 indicates a malfunction in the cooling fan control circuit Symptoms Engine overheating Overview applies to this diagnostic code. Affected Systems On This Page Code Definition Symptoms Affected Systems Possible Causes Diagnostic Steps Drive Safety Notes More Resources Diagnostic Trouble Codes Diagnostic Q&A Automotive Knowledge Base All Diagnostic Products Radiator fan operation Possible Causes Fan relay failure Diagnostic Steps 1 Command fan ON via scan tool; 2 Inspect relay and wiring Drive Safety Notes Risk of engine overheating

Learn what C0176 means and how to diagnose yaw rate sensor circuit faults C0176 Overview Code C0176 Code Type C Code Class C0 System ABS Severity Level Medium Emissions Related false Drivability Impact Minor Diagnostic Protocol CAN Freeze Frame Useful false Code Definition Diagnostic trouble code C0176 indicates an issue with the yaw rate sensor circuit Symptoms Stability control warning Overview applies to this diagnostic code. Affected Systems On This Page Code Definition Symptoms Affected Systems Possible Causes Diagnostic Steps Drive Safety Notes More Resources Diagnostic Trouble Codes Diagnostic Q&A Automotive Knowledge Base All Diagnostic Products Stability control system Possible Causes Yaw sensor misalignment Diagnostic Steps 1 Check sensor calibration 2 Inspect wiring Drive Safety Notes Stability control limited

Learn what P0750 means and how to diagnose shift solenoid A faults P0750 Overview Code P0750 Code Type P Code Class P0 System Transmission Severity Level Medium Emissions Related false Drivability Impact Major Diagnostic Protocol OBD2 Freeze Frame Useful true Code Definition Diagnostic trouble code P0750 indicates a shift solenoid A malfunction Symptoms Delayed shifts Overview applies to this diagnostic code. Affected Systems On This Page Code Definition Symptoms Affected Systems Possible Causes Diagnostic Steps Drive Safety Notes More Resources Diagnostic Trouble Codes Diagnostic Q&A Automotive Knowledge Base All Diagnostic Products Transmission shift control Possible Causes Solenoid A failure Diagnostic Steps 1 Test solenoid A 2 Inspect valve body Drive Safety Notes Gear shifting affected

Learn what P0184 means and how to diagnose intermittent fuel temperature sensor faults P0184 Overview Code P0184 Code Type P Code Class P0 System Engine Severity Level Low Emissions Related false Drivability Impact None Diagnostic Protocol OBD2 Freeze Frame Useful false Code Definition Diagnostic trouble code P0184 indicates intermittent signal from the fuel temperature sensor Symptoms Intermittent Check Engine Light Overview applies to this diagnostic code. Affected Systems On This Page Code Definition Symptoms Affected Systems Possible Causes Diagnostic Steps Drive Safety Notes More Resources Diagnostic Trouble Codes Diagnostic Q&A Automotive Knowledge Base All Diagnostic Products Fuel temperature monitoring Possible Causes Loose connector; Failing sensor Diagnostic Steps 1 Wiggle test wiring; 2 Monitor live data; 3 Inspect connectors for corrosion; 4 Replace sensor if needed Drive Safety Notes Vehicle remains drivable

Learn what P0821 means and how to diagnose shift lever position sensor circuit faults P0821 Overview Code P0821 Code Type P Code Class P0 System Transmission Severity Level High Emissions Related true Drivability Impact Major Diagnostic Protocol OBD2 Freeze Frame Useful true Code Definition Diagnostic trouble code P0821 indicates a malfunction in the shift lever position sensor circuit Symptoms Harsh shifting Slipping transmission Overview applies to this diagnostic code. Affected Systems On This Page Code Definition Symptoms Affected Systems Possible Causes Diagnostic Steps Drive Safety Notes More Resources Diagnostic Trouble Codes Diagnostic Q&A Automotive Knowledge Base All Diagnostic Products Shift lever position sensor Possible Causes Faulty shift lever position sensor Wiring or connection issues Diagnostic Steps 1 Inspect shift lever position sensor2 Test sensor circuit Drive Safety Notes Malfunctions in the shift lever position sensor can cause improper shifting behavior

Learn what P0873 means and how to diagnose transmission fluid pressure sensor performance malfunctions P0873 Overview Code P0873 Code Type P Code Class P0 System Transmission Severity Level High Emissions Related true Drivability Impact Major Diagnostic Protocol OBD2 Freeze Frame Useful true Code Definition Diagnostic trouble code P0873 indicates a malfunction in the transmission fluid pressure sensor performance Symptoms Poor shifting Transmission slippage Overview applies to this diagnostic code. Affected Systems On This Page Code Definition Symptoms Affected Systems Possible Causes Diagnostic Steps Drive Safety Notes More Resources Diagnostic Trouble Codes Diagnostic Q&A Automotive Knowledge Base All Diagnostic Products Transmission fluid pressure sensor Possible Causes Faulty fluid pressure sensor Wiring or circuit issues Diagnostic Steps 1 Inspect fluid pressure sensor2 Test sensor performance Drive Safety Notes A malfunction in the fluid pressure sensor can cause poor shifting and erratic transmission behavior

Learn what P0481 means and how to diagnose cooling fan 2 control issues P0481 Overview Code P0481 Code Type P Code Class P0 System Engine Severity Level High Emissions Related false Drivability Impact Major Diagnostic Protocol OBD2 Freeze Frame Useful true Code Definition Diagnostic trouble code P0481 indicates a malfunction in cooling fan 2 control circuit Symptoms Engine overheats at idle Overview applies to this diagnostic code. Affected Systems On This Page Code Definition Symptoms Affected Systems Possible Causes Diagnostic Steps Drive Safety Notes More Resources Diagnostic Trouble Codes Diagnostic Q&A Automotive Knowledge Base All Diagnostic Products Secondary cooling fan operation Possible Causes Fan motor failure Diagnostic Steps 1 Test fan motor; 2 Inspect control wiring Drive Safety Notes Overheating possible in traffic

Learn what P0509 means and how to diagnose IAC valve circuit range issues P0509 Overview Code P0509 Code Type P Code Class P0 System Idle Control Severity Level Medium Emissions Related true Drivability Impact Minor Diagnostic Protocol OBD2 Freeze Frame Useful true Code Definition Diagnostic trouble code P0509 indicates an idle air control valve circuit range problem Symptoms Erratic idle; Check Engine Light Overview applies to this diagnostic code. Affected Systems On This Page Code Definition Symptoms Affected Systems Possible Causes Diagnostic Steps Drive Safety Notes More Resources Diagnostic Trouble Codes Diagnostic Q&A Automotive Knowledge Base All Diagnostic Products Idle air control circuit Possible Causes Failed IAC valve; Faulty wiring Diagnostic Steps 1 Inspect IAC valve 2 Test IAC resistance Drive Safety Notes Idling may become unstable