William “Bill” Guzenski has produced hundreds of how-to videos for the automotive community. When not working in the Contact Center in Grand Prairie, Texas for CarParts.com, he’s attending race events and car shows throughout the country. He also loves to travel in his 40-foot motorhome, exploring abandoned mines and ghost towns. He’s currently building another car for Bonneville Salt Flats and will be campaigning a drag car at several events.
Credentials:
Summary DTC P2617 stands for “Crankshaft Position Signal Output Circuit/Open,” and it’s logged when the PCM detects a problem in…
Summary The P2502 code is defined as Charging System Voltage. This code triggers when the charging system voltage falls below…
Summary The P244B code stands for “Diesel Particulate Filter Differential Pressure Too High Bank 1.”This code is set when the…
The camshaft position sensor monitors the position of the engine’s camshaft as it rotates and calculates its rotational speed. The…
Summary Diagnostic trouble code (DTC) P2414 stands for “Oxygen Sensor Exhaust Sample Error Bank 1 Sensor 1.” This code triggers…
Summary Diagnostic trouble code (DTC) P2254 is defined as “O2 Sensor Negative Current Control Circuit/ Open Bank 2 Sensor 1.”If…
Summary The P2229 code stands for “Barometric Pressure Sensor A High,” which means the powertrain control module (PCM) senses a…
Summary Code P2423 stands for “HC Adsorption Catalyst Efficiency Below Threshold.”This code is logged once the PCM detects that the…
Summary The intake manifold runner opens to let more air in when the engine is running at a high RPM.…
Summary The P2001 code stands for “NOx Adsorber Efficiency Below Threshold Bank 2,” which means the powertrain control module detects…
Summary The diagnostic trouble code (DTC) P0762 indicates “Shift Solenoid 'C' Stuck On.”The powertrain control module (PCM) will set this…
Summary Diagnostic trouble code (DTC) U0107 stands for “Lost Communication with Throttle Actuator Control Module.” This code is triggered when…
Summary NOx sensors monitor nitrogen oxide levels in exhaust gases before and after going through the NOx trap. Code P2000…
The transmission takes the power produced by the engine and sends that force to the drive wheels. An automatic transmission…
Summary DTC P3425 stands for “Cylinder 4 Deactivation/Intake Valve Control Circuit/Open.”It is logged when the PCM detects an incorrect voltage…
Summary The P2723 code stands for “Pressure Control Solenoid E Performance/Stuck Off.” This code triggers when the pressure control solenoid…
Summary Diagnostic trouble code (DTC) P0880 stands for “TCM Power Input Signal.” If the powertrain control module (PCM) detects an…
Summary The diagnostic trouble code (DTC) P0579 indicates “Cruise Control Multi-Function Input ‘A’ Circuit/Range Performance.”The powertrain control module (PCM) will…
Summary DTC P0281 stands for “Cylinder 7 Contribution/Balance.” This code is logged when the controller detects a problem with the…
Summary The diagnostic trouble code (DTC) P0275 stands for “Cylinder 5 Contribution/Balance” and applies to vehicles with engines that have…
Summary The diagnostic trouble code (DTC) P2413 stands for “Exhaust Gas Recirculation System Performance.”The powertrain control module (PCM) will set…
Summary Diagnostic trouble code (DTC) P0544 stands for “Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 1.” This code triggers…
The secondary air injection (SAI) system supplies ambient air to the exhaust manifold or catalytic converter to burn up exhaust…
Summary Diagnostic trouble code (DTC) P0391 is defined as “Camshaft Position Sensor ‘B’ Circuit/Range Performance Bank 2.” This code is…
Summary DTC P0264 stands for “Cylinder 2 Injector Circuit Low.” This code is logged when the PCM detects a low…
Summary Trouble code P0197 is set when the oil temperature sensor is unable to send the correct signals to the…
Summary DTC P054A stands for “Cold Start B Camshaft Position Timing Over-Advanced Bank 1.” It’s triggered when the PCM detects…
Summary An activated P0429 trouble code indicates a problem in the catalyst heater control circuit. A bad exhaust temperature sensor,…
Summary The P0856 code is set once the PCM or EBCM senses an issue that can affect ABS operation.The common…
Summary The P0727 code stands for “Engine SPeed Input Circuit No Signal.”The PCM sets this trouble code when it fails…
Summary Code P2259 will be logged once the PCM detects that the actual and desired states of the SAI control…
Summary Diagnostic trouble code (DTC) P2257 stands for “Secondary Air Injection System Control ‘A’ Circuit Low. This code triggers if…
Summary DTC P2123 stands for “Throttle/Pedal Position Sensor/Switch ‘D’ Circuit High,” and it’s logged when the PCM detects abnormally high…
Summary Diagnostic trouble code (DTC) P20BD stands for “Reductant Heater ‘B’ Control Circuit/Open.”The P20BD code can be logged because of…
Summary Code P0426 is logged once the PCM doesn’t get the right response from the upstream oxygen sensor located in…
Summary On-board diagnostics will log a P0840 code when there’s an electrical fault in the transmission fluid pressure sensor/switch.Aside from…
Summary A P2767 trouble code is set when the powertrain control module (PCM) is unable to detect a signal from…
Summary The P2A04 code stands for “O2 Sensor Circuit Range/Performance Bank 2 Sensor 2.”The voltage signals from downstream O2 sensors…
Summary The PCM regularly checks the TFT sensor. Once the controller senses an intermittent problem with the transmission fluid temperature…
Summary Diagnostic trouble code (DTC) P0724 stands for “Brake Switch ‘B’ Circuit High.” It covers vehicles with automatic transmissions.Code P0724…
Summary The P0793 code stands for “Intermediate Shaft Speed Sensor ‘A’ Circuit No Signal.”It’s triggered when the intermediate shaft speed…
Summary DTC P0657 stands for “Actuator Supply Voltage ‘A’ Circuit/Open” and it’s logged when there’s a problem with actuator A.Some…
Summary If diagnostic trouble code P0652 appears on your scan tool, it means that there’s a problem with the reference…
Summary The diagnostic trouble code (DTC) P040D means “Exhaust Gas Recirculation Temperature Sensor ‘A’ Circuit High.” The PCM compares the…
Summary The diagnostic trouble code (DTC) P0390 indicates “Camshaft Position Sensor ‘B’ Circuit Bank 2.” Your vehicle's powertrain control module…
Summary The P0370 code stands for “Timing Reference High Resolution Signal ‘A’ Malfunction.”It’s set when the PCM detects a corrupt…
Summary Code P0350 is logged once the PCM detects an issue with the coil’s primary and secondary circuits.Some common causes…
Summary The P2623 code stands for “ Injector Control Pressure Regulator Circuit/Open.”This code is logged when the PCM detects a…
Summary The P2284 code stands for “Injector Control Pressure Sensor Circuit Range/Performance,” which means the injection control pressure sensor transmitted…
Summary The diagnostic trouble code (DTC) P2179 indicates “System Too Lean Off Idle Bank 2.”The powertrain control module (PCM) will…
Summary Diagnostic trouble code (DTC) P0346 stands for “Camshaft Position Sensor ‘A’ Circuit Range/Performance Bank 2.” Code P0346 is set…
Summary The water in fuel (WIF) sensor checks the amount of water in a diesel vehicle’s fuel system. Code P2269…
The oxygen sensor checks how much oxygen there is in the exhaust gases produced by the engine burning a mixture…
Summary DTC P2407 stands for “Evaporative Emission System Leak Detection Pump Sense Circuit Intermittent/Erratic.” It’s logged when the PCM receives…
Summary The diagnostic trouble code (DTC) U3000 has the simple definition of “Control Module.” This indicates an issue with the…
Summary DTC P0334 stands for “Knock Sensor 2 Circuit Intermittent (Bank 2),” and this is logged when the PCM detects…
Summary DTC P0310 stands for “Cylinder #10 Misfire Detected,” and this is logged when the PCM detects that cylinder #10…
Summary The diagnostic trouble code (DTC) P0182 stands for “Fuel Temperature Sensor 'A' Circuit Low.” The powertrain control module (PCM)…
Summary The P2088 code is logged once the PCM senses an issue with the actuator oil solenoid or its circuit…
Summary Diagnostic trouble code (DTC) P2078 stands for “Intake Manifold Tuning (IMT) Valve Position Sensor/Switch Circuit High Bank 1.” It’s…
Diesel vehicles can have problems with their selective catalytic reduction (SCR) system while showing minimal issues. A great way to…
Summary DTC P2014 stands for “Intake Manifold Runner Position Sensor/Switch.”This code is logged when the PCM detects a signal from…
Summary DTC P2005 stands for “Manifold Runner Control Stuck Open Bank 2.” It’s logged when the PCM can’t control the…
Summary The P0935 code stands for “Hydraulic Pressure Sensor High.”This code is set when the hydraulic pressure sensor sends an…
Summary To keep the 2018 Dodge Journey’s engine in good condition, you’ll have to change its oil as early as…
Summary With proper maintenance and repairs, your 2021 Toyota Tacoma can last 300,000 miles or more.There are various maintenance tasks…
Summary With proper upkeep, the 2018 GMC Sierra can get up to 250,000 miles without needing any major repairs.V8-powered versions…
Summary The 2018 Toyota Highlander 3.5L is known for being a very dependable SUV, but the manufacturer’s maintenance schedule needs…
Summary Your 2021 GMC Sierra 3.0 will display a warning message from its engine oil life system when it’s time…
Summary An oil change is recommended every 3,000 to 5,000 miles if your vehicle uses conventional oil. With synthetic oil,…
Summary The 2021 Ram 1500 has several trim levels including Big Horn, HFE, Laramie, Limited, and Lone Star, among others.Ram…
Summary Your 2020 Toyota RAV4 XLE requires routine maintenance tasks to stay on top of its game. Always consult your…
Summary Toyota recommends getting an oil change every six months or every 5,000 miles.The 2010 Toyota Corolla has an engine…
Summary Sticking with the maintenance schedule of your 2018 Chevrolet Silverado 1500 can keep it running for up to 300,000…
Summary Diagnostic trouble code (DTC) P0348 stands for “Camshaft Position Sensor ‘A’ Circuit High Bank 2.” Code P0348 triggers when…
Summary Your vehicle might log a P0338 trouble code when the engine computer detects an issue with the crankshaft position…
Summary The diagnostic trouble code (DTC) P0276 indicates “Cylinder 6 Injector Circuit Low.” The powertrain control module (PCM) will set…
Summary The P0272 code stands for “Cylinder 4 Contribution/Balance,” which means the powertrain control module (PCM) detects that cylinder 4…
Summary The P2191 code stands for “Manifold Absolute Pressure/Mass Air Flow – Throttle Position.” It’s logged once the PCM detects…
Summary The PCM will record a P2073 code on a scan tool if the MAP/MAF reading doesn’t match the calculated…
Summary The PCM will log a P023F trouble code if it detects a problem with the fuel pump or its…
Summary The P0229 code stands for “Throttle/Pedal Position Sensor Switch “C” Circuit Intermittent.” It’s triggered when the code detects a…
Summary The P0179 code stands for “Fuel Composition Sensor High Input.”This code is set when the PCM detects a high-voltage…
Summary DTC P2510 stands for “ECM/PCM Power Relay Sense Circuit Range/Performance,” and it’s logged when the vehicle exhibits signs of…
Summary The 2019 Ram 1500 trims are Express, SLT, Limited, Big Horn, Lone Star, Tradesman, HFE, Laramie, Rebel, and Longhorn.Ram…
Summary The P2443 code stands for “Secondary Air Injection System Switching Valve Stuck Closed Bank 2,” which means the powertrain…
Summary DTC P0615 stands for “Starter Relay Circuit” This code is logged when the PCM is alerted by the starter…
Summary Diagnostic trouble code (DTC) P2433 stands for “Secondary Air Injection System Air Flow/Pressure Sensor Circuit High Bank 1.” The…
Summary Diagnostic trouble code (DTC) P2294 has the definition of “Fuel Pressure Regulator 2 Control Circuit/Open.” If the powertrain control…
Summary The P0296 code stands for “Cylinder 12 Contribution/Balance.” It’s set when the #12 cylinder isn’t contributing as much power…
Summary The U0020 code stands for “Low Speed CAN Communication Bus Performance.” This code is set when the system perceives a…
Summary The P0358 code stands for “Ignition Coil H Primary/Secondary Circuit Malfunction.”It is set when an open or short is…
Summary The P3441 code stands for “Cylinder 6 Deactivation/Intake Valve Control Circuit/Open,” which means the powertrain control module (PCM) detects…
Summary DTC P2601 stands for “Coolant Pump ‘A’ Control Circuit Range/Performance,” and it’s logged when the PCM detects a problem…
Summary The diagnostic trouble code (DTC) P2565 indicates “Turbocharger Boost Control Position Sensor ‘A’ Circuit High.”The powertrain control module (PCM)…
Summary Diagnostic trouble code (DTC) P2128 stands for “Throttle/Pedal Position Sensor/Switch ‘E’ Circuit High.” It applies to vehicles with electronic…
Summary DTC P0AA6 stands for “Hybrid Battery Voltage System Isolation Fault”This code is logged when the PCM detects an isolation…
Summary DTC P2500 stands for “Generator Lamp/L-Terminal Circuit Low,” and this is logged when the control circuit of the generator…
Summary Diagnostic trouble code (DTC) P2459 stands for “Diesel Particulate Filter Regeneration Frequency.” This code only applies to diesel-engined vehicles.The…
Summary Diagnostic trouble code (DTC) P2450 stands for “Evaporative Emission System Switching Valve Performance/Stuck Closed.”This code triggers when the powertrain…