The P0657 trouble code is a diagnostic trouble code (DTC) that indicates an issue with the actuator supply voltage “A” circuit. This code is triggered when the Powertrain Control Module (PCM) detects an abnormal voltage reading from the actuator circuit, often due to an open circuit, which signifies a disconnection or failure in wiring. Actuators … Read more
The P1871 trouble code is a diagnostic trouble code (DTC) that indicates an “Undefined Gear Ratio” in the vehicle’s transmission system. This code is primarily associated with automatic transmissions and signals that the vehicle’s powertrain control module (PCM) has detected a discrepancy between the expected and actual gear ratios. When this code is triggered, it … Read more
The P203B trouble code is a diagnostic code related to the reductant level sensor circuit in diesel vehicles equipped with Selective Catalytic Reduction (SCR) systems. This code indicates that the Engine Control Module (ECM) or Powertrain Control Module (PCM) has detected an issue with the performance or range of the reductant level sensor circuit. Understanding … Read more
The P0A7F code indicates “Hybrid Battery Pack Deterioration.” This trouble code is specific to hybrid vehicles and signifies that the Powertrain Control Module (PCM) has detected either excessive resistance or an insufficient charge from the high-voltage (HV) battery pack. As hybrid vehicles rely heavily on their battery systems for performance and efficiency, encountering this code … Read more
The P0216 trouble code is a diagnostic trouble code (DTC) that indicates a malfunction in the injection timing control circuit, particularly in Bank 1 of the engine. This code is commonly associated with issues in diesel and gasoline engines that utilize electronic fuel injection systems. When the powertrain control module (PCM) detects a problem with … Read more
The P012C trouble code is a diagnostic trouble code (DTC) that indicates an issue with the Turbocharger/Supercharger Inlet Pressure Sensor ‘A’ circuit, specifically a low voltage condition. This code is part of the OBD-II system, which monitors various components of the vehicle’s powertrain to ensure optimal performance and emissions control. When the Powertrain Control Module … Read more