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P1023 – OBD-II Trouble Code Technical Description Fuel Pressure Control Valve Short to Ground What does Trouble Code P1023 mean? Diagnostic codes such as “P1023” refer to the OBD-II (On-Board Diagnostics II) system, which is used to monitor and diagnose vehicle components. P1xxx codes are usually related to the fuel injection control system. In the case of “P1023”, this indicates a short circuit of the fuel pressure control valve to ground. This could mean that there is a problem with the valve's electrical connection or that the valve itself is faulty. For more accurate information, consult the technical documentation of your specific vehicle or contact a professional automotive service. Possible Causes Code P1023 indicates a short circuit to ground from the fuel pressure control valve. It may…

P1022 – OBD-II Trouble Code Technical Description Throttle Pedal Position Sensor/Switch (TPS) Circuit A Low Input What does Trouble Code P1022 mean? Trouble code P1022 usually indicates problems with the vehicle's throttle pedal position sensor (TPS). Specifically, a “circuit A low input” error message indicates that the signal coming from the TPS sensor is too low or not within the expected range. The TPS measures the throttle opening angle and sends this information to the vehicle's Electronic Control Unit (ECU). A low input signal may be caused by a malfunction of the sensor itself, wiring or connection problems, or other electrical problems in the system. To accurately identify and resolve this problem, it is recommended to contact...

P1021 – OBD-II Trouble Code Technical Description Engine Oil Control Valve Circuit Bank 1 What does Trouble Code P1021 mean? The P1021 code indicates a problem with the bank 1 engine oil control valve circuit. This fault is usually associated with the variable valve timing (VVT) system or the exhaust camshaft control system (OCS). These systems are designed to change the position of camshafts to optimize engine performance under various conditions. Possible Causes What are the symptoms of DTC P1021? Symptoms for DTC P1021 may vary depending on specific engine conditions and characteristics. Here are some common symptoms that may occur: These symptoms may occur in varying degrees and will not necessarily be present at the same time. If…

P1020 – OBD-II Trouble Code Technical Description Valvetronic Eccentric Shaft Sensor Power Supply What does Trouble Code P1020 mean? The P1020 error code indicates a problem with the power supply to the Valvetronic eccentric shaft sensor in the engine management system. Valvetronic is a technology used in some BMW engines to change valve lift, which in turn affects the amount of air entering the cylinders. When the system detects a high voltage level in the eccentric shaft sensor power circuit, it may indicate the following possible problems: Possible Causes P1020 indicates a high voltage level in the Valvetronic eccentric shaft sensor power circuit. Possible causes for this error may include the following: To accurately diagnose and resolve the issue, it is recommended that you contact...

P1019 – OBD-II Trouble Code Technical Description Valvetronic Eccentric Shaft Sensor High Power Level What does Trouble Code P1019 mean? Code P1019 is associated with the Valvetronic system, which is responsible for changing the valve lift in the engine. The Valvetronic system works in combination with a variable valve timing system, allowing you to gently adjust the timing and duration of the intake valves. This system improves fuel economy, reduces emissions and eliminates the need to use the throttle during normal operation. The eccentric shaft position sensor is an important part of the Valvetronic system and is used to provide feedback regarding the position of the eccentric shaft. This shaft, controlled by the Valvetronic motor, regulates the lift of the intake valves. The eccentric shaft sensor is installed on the cylinder head under the valve cover. Diagnostic code P1019 will be...

P1018 – OBD-II Trouble Code Technical Description Reductant Control Module Sensor Power Circuit Low Voltage What does Trouble Code P1018 mean? Code P1018 is a standard trouble code used by the OBD-II (On-Board Diagnostics II) vehicle diagnostic system. It is specific to the engine area and is listed in addition to other codes to indicate specific problems or malfunctions. However, to accurately determine the meaning of the P1018 code, you must consider the make, model, and year of your specific vehicle. Different car manufacturers may use different codes to indicate the same problems. For accurate information about the P1018 code for your vehicle, it is recommended that you consult the service manual for your specific make and model, or consult with an authorized service center.…

P1017 – OBD-II Trouble Code Technical Description Valvetronic Eccentric Shaft Sensor Reliability What does Trouble Code P1017 mean? The Valvetronic system is an innovative valve lift control technology combined with a variable valve timing system, providing smooth control of the timing and duration of the intake valves. This system not only improves fuel economy and reduces emissions, but also eliminates the need for a throttle body in daily use. Valvetronic is based on an eccentric shaft, which is controlled by the Valvetronic engine and is responsible for adjusting the lift of the intake valve. An eccentric shaft position sensor is used to provide feedback on the position of the eccentric shaft. Located under the valve cover on the cylinder head, this sensor ensures that the position of the Valvetronic eccentric shaft...

P1016 - OBD-II Trouble Code Technical Description Reductant Control Module Sensor Serial Communication Circuit High Voltage What does Trouble Code P1016 mean? The reducing agent quality sensor is located in the reducing agent reservoir and uses an ultrasonic signal to evaluate the quality of the reducing agent. This sensor also has a built-in temperature sensor to measure the temperature of the reducing agent. It communicates with the reducing agent control module via serial data. If a malfunction is detected that results in high voltage in the signal circuit for more than 1 second, a diagnostic trouble code (DTC) is generated. Possible Causes Possible causes of DTC P1016 include, but are not limited to: It is important to note that these causes represent only a subset of the possible factors and other problems may also be...

P1015 - OBD-II Trouble Code Technical Description Reductant Control Module Sensor Serial Communication Circuit Low Voltage What does Trouble Code P1015 mean? The reducing agent quality sensor is designed to measure the quality of the reducing agent in the tank using an ultrasonic signal. It also includes a built-in temperature sensor to monitor the temperature of the reducing agent. This sensor communicates with the reducing agent control module via serial data. If the remanufacturer control module detects a signal circuit malfunction resulting in a low signal for more than 1 second, a diagnostic trouble code (DTC) will be set. This code serves as an indicator of possible problems with the operation of the sensor or associated elements, which allows for more detailed diagnostics and repairs if necessary. Possible reasons…

P1014 – OBD-II Trouble Code Technical Description Exhaust Camshaft Position Actuator Park Position Bank 2 What does Trouble Code P1014 mean? The camshaft position (CMP) system allows the engine control module (ECM) to change the timing of all four camshafts while the engine is running. The CMP drive mechanism adjusts the camshaft position in response to controlled changes in oil pressure. The CMP actuator solenoid controls oil pressure, which is used to advance or retard the movement of the camshaft. CMP actuators include an outer housing that is driven by the engine timing chain. Inside the timing assembly is a wheel with fixed blades attached to the camshafts. CMP drive units are also equipped with a locking pin. This pin prevents movement...

P1013 – OBD-II Trouble Code Technical Description Intake Camshaft Position Actuator Park Position Bank 2 What does Trouble Code P1013 mean? The camshaft position (CMP) system provides the engine control module (ECM) with the ability to adjust the timing of all four camshafts while the engine is running. This mechanism allows the camshaft to change position in response to directional changes in oil pressure. The key element in this process is the CMP actuator solenoid, which controls the oil pressure applied to advance or retard the camshaft. CMP actuators have an outer housing that interfaces with the engine timing chain. Inside the timing assembly there is a wheel with fixed blades attached to the camshafts. Additionally, CMP drive units are equipped with a locking pin to prevent movement...

P1012 – OBD-II Trouble Code Technical Description Fuel Pump Supply Pressure Too High What does Trouble Code P1012 mean? The powertrain control module (PCM) regulates the pressure generated by the fuel pump. A diagnostic trouble code (DTC) is set when the fuel pump pressure exceeds the specified limits and becomes excessively high. Possible Causes There may be a problem with the fuel supply system. Possible causes may include: If you are experiencing a P1012 code, it is recommended that you conduct a detailed diagnosis using professional equipment or contact a qualified auto mechanic to resolve the issue. What are the symptoms of DTC P1012? Trouble code P1012, associated with “fuel pump supply pressure too high,” can present with a variety of symptoms depending on the specific conditions and make of the vehicle. Below…

P1011 – OBD-II Trouble Code Technical Description Fuel pump supply pressure is too low. What does trouble code P1011 mean? OBD-II trouble code P1011 indicates problems with the mass air flow (MAF) sensor or the signal cable associated with that sensor. The MAF sensor measures the amount of air entering the engine and relays this information to the engine control module (ECM). The ECM then uses this data to properly adjust the fuel/air mixture to ensure efficient engine operation. Possible Causes Possible Causes: What are the symptoms of DTC P1011? Possible symptoms: To resolve the problem, it is recommended to conduct a detailed diagnosis, including checking the MAF sensor, its wiring, connectors, and correct installation. In case of doubt or inability to carry out repairs yourself, it is recommended to contact…

P1010 – OBD-II Trouble Code Technical Description Ambient Air Temperature Sensor Circuit Low. What does trouble code P1010 mean? P1010 is not a standard OBD-II trouble code. P1xxx codes are usually manufacturer specific and may vary depending on the specific vehicle. To obtain accurate information about the P1010 code for your specific vehicle, it is recommended that you consult your repair manual or contact a dealer or auto repair shop that specializes in your make and model. Possible Causes P1010 – Transmission fault code. When your check engine light appears, the first thing to do is check your gas cap. Stop, check for cracks, tighten it and continue driving while watching the indicator. If necessary, replace the cover, the cost of which is usually...

P1009 – OBD-II Trouble Code Technical Description Valve Timing Advance Malfunction What does the P1009 trouble code mean? Trouble code P1009 refers to the engine's variable valve timing system and is typically associated with the VTEC (Variable Valve Timing and Lift Electronic Control) system. This code indicates possible problems with the operation of the timing control mechanism for opening and closing the timing valves. Possible causes In particular, code P1009 may indicate the following problems: To accurately determine the cause and eliminate the problem, it is recommended to contact a professional car service. Specialists can conduct additional diagnostics using specialized equipment and determine the necessary repair measures. What are the symptoms of trouble code P1009? Trouble code P1009 related to the variable valve timing system and...

P1008 - OBD-II Trouble Code Technical Description Engine Coolant Bypass Valve Command Counter Incorrect What does Trouble Code P1008 mean? Trouble code P1008 is usually associated with the engine management system and can have different meanings depending on the specific make and model of the vehicle. It indicates problems with the ignition control system or other components responsible for fuel and ignition control. To determine the exact meaning of the P1008 code for your specific vehicle, it is recommended that you consult the official repair manual for your make and model, the manufacturer's official website, or contact a qualified auto repair shop. Typically codes P1000-P1099 refer to the fuel and injection control system, ignition system, or other engine management related components. Possible…