Speedometer Head: Description and Operation

POWER SUPPLY AND GROUND CIRCUIT
Power is supplied at all times
- through 7.5 A fuse [No. 24, located in the fuse block (J/B)]
- to combination meter terminal 3.
With the ignition switch in the ON or START position, power is supplied
- through 10 A fuse [No. 8, located in the fuse block (J/B)]
- to combination meter terminal 12.
Ground is supplied
- to combination meter terminal 2
- through body grounds M4 and M77.

The vehicle speed sensor provides a voltage signal to the combination meter for the speedometer.
The voltage is supplied
- to combination meter terminals 16 and 14 for the speedometer
- from terminals 2 and 1 of the vehicle speed sensor.
The speedometer converts the voltage into the vehicle speed displayed.