Since he is testing the 2 wire speed sensor while it is out of the vehicle he breaks out the high powered drive device a drill to spin the sensor at the necessary rpms to generate a signal. Before stealth conversions began offering aftermarket vehicle speed sensors for engine swaps in 1991 the biggest obstacle for most people who installed the tpitbi engines into their vehicles was the vss vehicle speed sensor.
Can T Get A Speed Signal To The Ecu Need Help Figuring This
Vehicle speed sensor wiring diagram. If you are intending on testing the vehicle you will actually have to drive the wheels with the engine to obtain sufficient rpms to generate a signal. By hamilton318 march 28 2011 in 1999 2013 silverado sierra 1500. Tremec electronic speed sensor info vss posted on july 2 2019 july 3 2019. Turn the ignition switch to the off position. A pulse compensatorconverter unit may be. One speed sensor is called the input shaft speed sensor and the other is the output shaft speed sensor.
Some aftermarket wiring harnesses dont use a vssthey simply ground the pn parkneutral wire so that the ecm. While i am going down the. If the resistance is 190250 ohms the sensor is okay. The function of the input shaft speed sensor is to keep track of. There are 2 wires connected to the vss a black one and a white one. Using a digital volt ohmmeter dvom measure the resistance ohmmeter function between the sensor terminals.
You will actually find two speed sensors in the transmission of each new vehicle out today. Hamilton318 0 hamilton318 0 enthusiast. Follow your speedometer manufacturers recommendation for wiring connections. I installed a navigation system in my truck over the weekend but am having a bit of a problem. Both wires connect the vss to your vehicle to ground the sensor and transmit information about youre vehicles speed. Vehicle speed sensor testing.
These two sensors work together to relay information back to the engine control unit. Disengage the wiring harness connector from the vss. Disengage the wiring harness connector from the vss. Vehicle speed sensor replacement. Vehicle speed sensor wire location. Blue wire on most wiring diagrams and the one on the right toward the rear of car is the signal terminal yellow on most wiring diagrams.
Posted march 28 2011.
Gallery of Vehicle Speed Sensor Wiring Diagram
