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The P0AC4 trouble code is a diagnostic trouble code (DTC) associated with hybrid vehicles, specifically indicating that the Hybrid Powertrain Control Module (HPCM) has requested the illumination of the Malfunction Indicator Lamp (MIL). This code typically signifies an underlying issue within the hybrid powertrain system that requires attention. When this code appears, it may not always be accompanied by noticeable symptoms, but it signals that

The P0502 trouble code indicates a problem with the vehicle’s speed sensor, specifically that the input from the Vehicle Speed Sensor (VSS) A is low. This code is set by the Powertrain Control Module (PCM) when it detects that the voltage signal from the VSS A is below the expected level. The VSS plays a crucial role in monitoring vehicle speed, which is essential for

The P026A trouble code is a diagnostic trouble code (DTC) that indicates an issue with the charge air cooler (CAC) efficiency in a vehicle’s engine system. Specifically, it signifies that the engine control module (ECM) has detected that the efficiency of the charge air cooler is below the expected threshold. This can lead to various performance issues, including reduced engine power and increased emissions. Understanding

The P0504 trouble code is a diagnostic trouble code (DTC) that indicates a problem with the brake switch circuit, specifically the “Brake Switch A/B Correlation.” This code is generated when the vehicle’s powertrain control module (PCM) detects a discrepancy between the signals from the brake switch circuits. When this occurs, it can lead to various issues affecting the vehicle’s functionality, including problems with the brake

The P1354 trouble code is a diagnostic trouble code (DTC) that indicates a malfunction in the Variable Valve Timing (VVT) system, specifically related to the VVT solenoid or its associated components. This code can appear in various vehicle makes and models, often leading to performance issues such as poor acceleration, engine stalling, or increased emissions. Understanding this code and its implications is crucial for vehicle

The P0651 trouble code is a diagnostic trouble code (DTC) that indicates an issue with the “Sensor Reference Voltage ‘B’ Circuit.” This code is triggered when the powertrain control module (PCM) detects an open circuit condition in the reference voltage circuit designated as “B” for various engine sensors. The PCM sends a 5-volt reference signal to these sensors, which are crucial for monitoring engine performance.

The P1705 trouble code is a diagnostic trouble code (DTC) that indicates an issue with the transmission range sensor circuit. This code is specific to automatic transmissions and signifies that the transmission control module (TCM) has detected a malfunction in the transmission range sensor or its circuit. The transmission range sensor, also known as the gear position sensor, is crucial for determining the current gear

The P2419 trouble code is a diagnostic trouble code (DTC) that indicates an issue with the evaporative emission control system, specifically the “Evaporative Emission System Switching Valve Control Circuit Low.” This code is logged when the Powertrain Control Module (PCM) detects that the control circuit for the EVAP system switching valve is operating below its expected range. The EVAP system plays a crucial role in

The P0090 trouble code is a diagnostic trouble code (DTC) that indicates a malfunction in the fuel pressure regulator control circuit. This code is part of the On-Board Diagnostics II (OBD-II) system, which monitors various components and systems in modern vehicles. When the Engine Control Module (ECM) detects that the fuel pressure regulator is not functioning correctly, it triggers the P0090 code. This can lead

The P1717 trouble code is a diagnostic trouble code (DTC) that indicates an issue with the transmission range switch, which is crucial for the proper functioning of the vehicle’s transmission. This code typically arises when the Engine Control Module (ECM) detects a problem with the input shaft speed sensor (ISS) or the transmission range switch circuit. Understanding this code is essential for vehicle owners and