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Vehicle Speed Sensor (VSS) Inspection: Notes

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 terminal. (See NEGATIVE BATTERY TERMINAL 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.
    G11279118Courtesy 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.
    G13489246Courtesy 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.
    G11279121Courtesy 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.
    G11279122Courtesy 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.
    G11279354Courtesy 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.
G11279355Courtesy of MAZDA MOTORS CORP.
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