Speedometer Head: Description and Operation

Models With Tachometer

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.

Models Without Tachometer

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 (34) for the water temperature gauge, fuel gauge and speedometer.
^ to combination meter terminal (30)
^ 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 (23) and (22) for the speedometer
^ from terminals (2) and (1) of the vehicle speed sensor.
The speedometer converts the voltage into the vehicle speed displayed.