Altima SE L4-2.4L (KA24DE) (1997)
Tachometer: Description and Operation
With the ignition switch in the ON or START position, power is supplied:
^ through 10 A fuse (No. (25) located in the fuse block)
^ to combination meter terminal (43) for the water temperature gauge
^ combination meter terminal (22) for the tachometer and
^ combination meter terminal (2) for the fuel gauge and speedometer.
Ground is supplied:
^ to combination meter terminal (38)
^ through body grounds (M51), (M76) and (M77)
TACHOMETER
The tachometer indicates engine speed in revolutions per minute (rpm).
The tachometer is regulated by a signal:
^ from terminal (3) of the ECCS control module (ECM)
^ to combination meter terminal (35) for the tachometer.