What does the P0500 OBD2 code mean? The P0500 code, which stands for “Vehicle Speed Sensor Malfunction,” indicates there is an issue with the vehicle speed sensor (VSS) circuit. Specifically, it means: The vehicle speed information is used for important systems like the speedometer, automatic transmission shifting, ABS, traction control, cruise control and more. When …
What Is the P0171 Code? P0171 is an important engine diagnostic trouble code that every car owner should be familiar with. Specifically, P0171 indicates that the engine is running too lean or with insufficient fuel for the air entering the engine. The oxygen sensors in the exhaust system detect this lean air-fuel mixture, which then …
What is the P1778 Trouble Code? The P1778 code means there is a communication problem between the transmission control module (TCM) and the powertrain control module (PCM). These two components work together to control gear shifting and engine operation. When they can’t communicate properly, the TCM detects signals from the PCM that are outside normal …