200SX SE-R L4-1998cc 2.0L DOHC MFI (SR20DE) (1998)
Speedometer Head: Description and Operation
With the ignition switch in the ON or START position, power is supplied:
^ through 10 A fuse (No. (12), located in the fuse block [J/B])
^ to combination meter terminal (41) for the water temperature gauge,
^ to combination meter terminal (22) for the tachometer and speedometer
^ to combination meter terminal (10) for the fuel gauge.
Ground is supplied:
^ to combination meter terminal (28)
^ through body grounds (M43), (M44) and (M60).
The vehicle speed sensor provides a voltage signal to the combination meter for the speedometer.
The voltage is supplied:
^ to combination meter terminals (30) and (24) for the speedometer
^ from terminals (2) and (1) of the vehicle speed sensor.
The speedometer converts the voltage into the vehicle speed displayed.