The vehicle speed sensor VSS (Vehicle Speed \u200b\u200bSensor) is a magnetic sensor, is mounted on the transaxle where would the speedometer cable.
The VSS provides an AC signal to the ECM which is interpreted as the vehicle speed. This sensor is a permanent magnet generator mounted on the transaxle. With increasing vehicle speed the frequency and voltage increase, then converts that voltage ECM Km / hr, which uses for its calculations. The Km / hr can be read with OTC monitor.
The VSS is responsible for informing the ECM of the vehicle speed to control the speedometer and odometer, coupling torque converter clutch (TCC) automatic transmissions, some are used as reference signal for speed control cruise control two-speed fan motor radiator.
has inside a spinning magnet that generates a sine wave AC directly proportional to vehicle speed. Each turn of the axis generates 8 cycles, the resistance should be 190 to 240 ohms.
With an AC voltmeter you check the output voltage when switched off and putting to turn one of the driving wheels at 40 miles per hour. The voltage should be 3.2 volts.
0 comments:
Post a Comment