Diagnostictrouble code (DTC) P0500 stands for "Vehicle Speed Sensor (VSS) Malfunction." This code is set when the PCM or engine control module (ECM) detects incorrect speed readings or no signal at all from the vehicle speed sensor (VSS). Some vehicle platforms don't list this code but will set similar P050x codes, e.g., P0501, etc. Thetransmission speed sensors are used to calculate the actual gear ratio of the transmission while in use. There are generally two-speed sensors that work in conjunction to provide accurate transmission data to the vehicle's powertrain control module. The first is known as the Input Shaft Speed (ISS) sensor. As described, this sensor is Thebrake pedal is engaged or the brake pedal switch is malfunctioning. The traction control or ABS system is engaged for more than two seconds. The CPU self-diagnosis has detected a fault in the speed control assembly. A fuse has blown or an electrical short exists. A faulty VSS or Vehicle Speed Sensor. A malfunction with the throttle actuator. Listedbelow are a few of the warning signs that a problem with your yaw rate sensor may exist. 1. Check Engine Light comes on. When the yaw rate sensor works correctly, the fault that it detects is electronically sent to the device that needs to receive the input. This process is automatic and does not require any motion or action from the driver. Youll notice one or more of the following symptoms: A rough idle upon starting the engine (that is, when the engine is cold) and sometimes at a stop light or while looking for a spot in a parking lot (that is, at low engine speeds in a warmed-up engine). Stalling when the engine idles. Increase in fuel consumption. Hereare 10 common bad oxygen sensor symptoms: Continually failed emission tests. Flashing or illuminated CEL ( Check Engine Light) Misfiring, rough idling, or stalling. Bad fuel economy/ gas mileage. Poor engine performance. Engine noises. Black exhaust fumes. Sulfuric/rotten-egg smell from the exhaust. .

symptoms of a bad vehicle speed sensor