Supra L6-3.0L DOHC Turbo (7M-GTE) (1987)
Vehicle Speed Sensor: Testing and Inspection
No. 1 Speed Sensor (In Combination Meter)
NO. 1 SPEED SENSOR (IN COMBINATION METER)
a. Remove the combination meter.
b. Connect an ohmmeter between terminals A and B.
c. Revolve the meter shaft and check that the meter needle repeatedly deflects (four times per revolution of the shaft) from 0 ohms to infinity
ohms.