Section 11 (Instrument Panel): Testing: Tachometer: Notes
WARNING: This page is about a different car, the 1991 Mitsubishi Pickup, 1991 Mitsubishi Montero, and 1991 Dodge Ram 50. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
DO NOT
reverse polarity when installing tachometer, as diode and transistor may be damaged.