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The P1390 trouble code is a diagnostic trouble code (DTC) that indicates a problem within the engine’s timing system. Specifically, it often points to an issue with the timing belt or chain, which may have skipped one or more teeth. This can lead to improper synchronization between the crankshaft and camshaft, resulting in various performance issues. When this code appears, it typically triggers the Check

The P2796 trouble code is a diagnostic trouble code (DTC) that indicates an issue with the auxiliary transmission fluid pump control circuit. This code is specific to the powertrain system and signals that the electronic control module (ECM) has detected a malfunction in the circuit that controls the auxiliary transmission fluid pump. The auxiliary pump plays a crucial role in maintaining proper fluid circulation in

The P26A7 trouble code is a diagnostic trouble code (DTC) that indicates a malfunction within the engine coolant bypass valve ‘A’ position sensor circuit. This code is part of the OBD-II system, which monitors the performance of various components in a vehicle’s powertrain. When the engine control module (ECM) detects an issue with the coolant bypass valve’s position sensor, it triggers the P26A7 code, alerting

The P0819 trouble code is a diagnostic trouble code (DTC) that indicates an issue with the correlation between the upshift/downshift switch and the transmission range switch in vehicles equipped with automatic transmissions. This code is particularly relevant for those utilizing manual shift modes, such as paddle shifters or sport modes. When the powertrain control module (PCM) detects a malfunction in this system, it triggers the

The P20E4 trouble code is a diagnostic trouble code (DTC) associated with the exhaust gas temperature sensor. Specifically, it indicates a correlation issue between Exhaust Gas Temperature Sensor 2 and Sensor 3 in Bank 1 of the engine. This code is crucial for maintaining optimal engine performance and emissions control. When the engine control module (ECM) detects that the temperature readings from these sensors do

The P21AB trouble code is an OBD-II diagnostic code that indicates a malfunction related to the Reductant Level Sensor ‘B’ circuit, specifically signaling that the circuit voltage is too high. This code is primarily associated with diesel engines that utilize Diesel Exhaust Fluid (DEF) systems to reduce emissions. When this code appears, it can lead to various operational issues, including reduced engine performance and potential

The P0300 diagnostic trouble code (DTC) indicates that the engine control module (ECM) has detected a random or multiple cylinder misfire. This means that one or more cylinders in the engine are not firing correctly, which can lead to a variety of performance issues and potential damage if not addressed promptly. Understanding the causes, symptoms, and solutions for this trouble code is essential for vehicle

The P268B trouble code is an OBD-II diagnostic trouble code (DTC) that indicates a problem with the high-pressure fuel pump calibration in a vehicle’s engine management system. Specifically, it means “High Pressure Fuel Pump Calibration Not Learned/Programmed.” This code is significant as it can lead to poor engine performance, reduced fuel efficiency, and potential starting issues if not addressed promptly. Understanding this code is crucial

The P2712 trouble code is a diagnostic trouble code (DTC) that indicates a problem related to the hydraulic power unit in a vehicle’s transmission system. Specifically, it refers to “Hydraulic Power Unit Leakage Intermittent.” This code is triggered when the engine control module (ECM) or transmission control module (TCM) detects low hydraulic pressure, which can lead to various transmission issues, including slipping, overheating, and poor

The P2682 trouble code is a diagnostic code that indicates an issue with the Engine Coolant Bypass Valve ‘A’ Control Circuit. This code is part of the OBD-II (On-Board Diagnostics) system, which monitors various vehicle systems to ensure they operate correctly. When the Powertrain Control Module (PCM) detects a low voltage signal in the control circuit of the coolant bypass valve, it triggers this code,