4th-gen Sunny came with with early dash (1979) and late dash (1980-1982)
Overview
Wiring
Tachometer has a 3-wire connector.
WHITE: TACH signal to coil NEG terminal (blue wire) GREEN: Light: to lighting circuit sometimes RED BLACK: Earth/ground
|L| |T|E|
1979 (early) Factory Service Manual wiring diagram (North America)