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Home › Mazda › 2016 › MX-5 Miata Club, Automatic Trans › Repair and Diagnosis › Transmission › Automatic Trans › Automatic Transaxle System (Service Information) › Vehicle Speed Sensor (VSS) Inspection

Vehicle Speed Sensor (VSS) Inspection

CAUTION:
  • Water or foreign objects entering the connector can cause a poor connection or corrosion. Be sure not to drop water or foreign objects on the connector when disconnecting it.
  1. Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION .)
  2. Remove the selector lever knob. (See AUTOMATIC TRANSMISSION SHIFT MECHANISM REMOVAL/INSTALLATION .)
  3. Remove the shift panel component. (See SHIFT PANEL REMOVAL/INSTALLATION .)
  4. Remove the upper panel. (See UPPER PANEL REMOVAL/INSTALLATION .)
  5. Remove the parking brake lever boot panel. (See PARKING BRAKE LEVER BOOT PANEL REMOVAL/INSTALLATION .)
  6. Remove the rear console. (See REAR CONSOLE REMOVAL/INSTALLATION .)
  7. Remove the front console panel. (See FRONT CONSOLE PANEL REMOVAL/INSTALLATION .)
  8. Remove the front console component. (See FRONT CONSOLE REMOVAL/INSTALLATION .)
  9. Disconnect the connector and wiring harness clip.
    Fig 1: Disconnecting Connector And Wiring Harness Clip
    G10952813Courtesy of MAZDA MOTORS CORP.
  10. Place a clean rag behind the engine so that the engine does not contact the rear housing when it is tilted.
    Fig 2: Identifying Rear Housing And Rag
    G10952814Courtesy of MAZDA MOTORS CORP.
  11. Remove the front crossmember under cover. (See FRONT CROSSMEMBER UNDER COVER REMOVAL/INSTALLATION .)
  12. Disconnect the control rod from the selector lever component. (See AUTOMATIC TRANSMISSION SHIFT MECHANISM REMOVAL/INSTALLATION .)
  13. Remove the tunnel member.
    Fig 3: Removing Tunnel Member
    G10952815Courtesy of MAZDA MOTORS CORP.
  14. Disconnect the HO2S connector. (See HEATED OXYGEN SENSOR (HO2S) REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .)
  15. Disconnect the TWC from the exhaust manifold (WU-TWC). (See EXHAUST SYSTEM REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .)
  16. Suspend the TWC using a cable as shown in the figure.
    Fig 4: Suspending TWC Using Cable
    G10952816Courtesy of MAZDA MOTORS CORP.
  17. Remove the power plant frame. (See POWER PLANT FRAME REMOVAL [M66M-D] .) (See POWER PLANT FRAME INSTALLATION [M66M-D] .)
  18. Tilt the transmission while being careful not to allow parts on the back of the engine to contact the vehicle body.
  19. Disconnect the VSS connector.
    Fig 5: Disconnecting VSS Connector
    G10952817Courtesy of MAZDA MOTORS CORP.
    CAUTION:
    • Do not hit in the VSS.
    • Do not damage the terminals.
  20. Measure the resistance between the VSS terminals A and B.
    Fig 6: Identifying VSS Connector Terminals A And B
    G10952818Courtesy of MAZDA MOTORS CORP.

    VSS resistance 

    • 560-680 ohm
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