Corolla 2006-2007

Vehicle Speed Sensor

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Operation



Specific to:

Toyota Corolla 2006-2008

Vehicles, which are not equipped with ABS, detect the vehicle speed using the No. 1 vehicle speed sensor. The No. 1 vehicle speed sensor transmits a 4-pulse signal for every revolution of the rotor shaft, which is rotated by the transaxle output shaft via the driven gear. The 4-pulse signal is converted into a more precise rectangular waveform by the waveform shaping circuit inside the combination meter. The signal is then transmitted to the ECM. The ECM determines the vehicle speed based on the frequency of the pulse signal.

Removal & Installation



Specific to:

Toyota Corolla 2006-2008

  1. Disconnect VSS sensor connector from sensor.
  2.  
  3. Remove VSS sensor attaching screws and remove VSS from transaxle assembly.
  4.  

To install:

  1. Reverse removal procedure
  2.  

Testing



Specific to:

Toyota Corolla 2006-2008

Check connections at VSS sensor connections, combination meter and ECM. If any of these are present, repair, clear codes, and retest.


NOTE
Proper testing of VSS sensor requires active tasks of vehicle speed system by an Intelligent tester scan tool. Without proper tester, accurate VSS sensor testing is not possible.



Click image to see an enlarged view

Fig. Vehicle speed sensor pinout

 
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