The P1040 trouble code is a diagnostic trouble code (DTC) that indicates a malfunction in the injector circuit, specifically related to the supply voltage for the injectors. This code falls under the category of powertrain codes and is crucial for vehicle performance and emissions control. When the P1040 code is triggered, it typically signifies that … Read more
The P2404 diagnostic trouble code (DTC) is related to the vehicle’s Evaporative Emission Control (EVAP) system, specifically indicating an issue with the leak detection pump sense circuit. This code suggests that the powertrain control module (PCM) has detected an abnormal signal from the EVAP system’s leak detection pump, which is responsible for checking the integrity … Read more
The P0798 trouble code is an OBD-II diagnostic code that indicates a malfunction in the Pressure Control Solenoid “C” electrical circuit. This solenoid is crucial for managing hydraulic pressure within the vehicle’s transmission system, which directly affects gear shifting and overall vehicle performance. When this code is triggered, it often leads to symptoms such as … Read more
The P2158 trouble code is a diagnostic trouble code (DTC) that indicates an issue with the Vehicle Speed Sensor (VSS) “B.” This sensor plays a crucial role in providing speed information to the vehicle’s Engine Control Module (ECM). When this code is triggered, it suggests that the ECM has detected an inconsistency in the readings … Read more
The P2423 trouble code indicates a malfunction related to the hydrocarbon (HC) adsorption catalyst efficiency, specifically below the threshold for Bank 1 of the engine. This code is part of the On-Board Diagnostics II (OBD-II) system, which monitors various components involved in emissions control. When the Powertrain Control Module (PCM) detects that the efficiency of … Read more
The P0877 trouble code is a diagnostic trouble code (DTC) that indicates an issue with the Transmission Fluid Pressure Sensor/Switch “D” Circuit Low. This code is part of the OBD-II system, which monitors the performance of the vehicle’s engine and transmission. When the powertrain control module (PCM) detects that the fluid pressure readings from the … Read more