What happens when the VSS does not work?
What happens when the VSS does not work?
Speedometer Failure – Without a properly working vehicles speed sensor, the speedometer will not register any speed. It’ll just sit at 0 MPH while you are driving. The Odometer may not work at all. Cruise Control Failure – When a vehicle is not getting a signal from the VSS, it’ll not let the cruise control engage.
Why is my VSS reading not matching my speed?
Monitor the VSS while driving and see if it corresponds to how fast you are driving. If the reading doesn’t match your actual speed, something is wrong with the sensor or its circuit. If the reading does match but you still have a P0500 code, you likely have an intermittent problem.
Can a meter be used to test VSS sensors?
While a meter can be used to test VSS sensors, it’s much better to test them with an oscilloscope. A scope allows you to view the sensor signal waveform pattern and check for any inconsistencies. A magnetic pickup sensor will produce an alternating sine wave pattern.
What are the symptoms of a VSS malfunction?
Symptoms may include shift problems, engine performance problems and improper speedometer function. In some cases, the only symptom will be an illuminated check engine light. Other lights may be on as well, such as ABS and traction control. How do you troubleshoot code P0500?
What happens if the VSS sensor is not working?
Vehicle speed information relayed by the VSS is used by the transmission control module (TCM) or powertrain control module (PCM) to determine shift timing. Therefore, a failing speed sensor will have a direct impact on automatic transmission operation.
Monitor the VSS while driving and see if it corresponds to how fast you are driving. If the reading doesn’t match your actual speed, something is wrong with the sensor or its circuit. If the reading does match but you still have a P0500 code, you likely have an intermittent problem.
Symptoms may include shift problems, engine performance problems and improper speedometer function. In some cases, the only symptom will be an illuminated check engine light. Other lights may be on as well, such as ABS and traction control. How do you troubleshoot code P0500?
How to check VSS code on reed switch sensor?
If the VSS checks out OK, but you still have P0500 code illuminated, you’ll need to check the sensor circuit. Reed switch sensor: A reed switch VSS circuit is pretty simple. The sensor will have two wires going to it: power and the return signal to the PCM.
