Celica Liftback L4-122 1998cc 2.0L DOHC Turbo (3S-GTE) (1992)
Vehicle Speed Sensor: Testing and Inspection
- Jack-up one rear tire and shift transmission into N range.
- With the ignition turned OFF, unplug the ECU connector.
- Locate terminal SPD on the ECU and connect an Ohmmeter probe between the SPD harness terminal and ground.
- Slowly rotate the raised rear tire and count the deflections of the ohmmeter.
- There should be 3 - 4 deflections per revolution of the tire.
- If not as specified, check wiring to the instrument cluster.
- If no problem is found, replace the VSS.
- Reconnect the ECU connector and lower the vehicle rear tire.