Connecting Tachometer
WARNING: This page is about a different car, the 1995 Lexus SC 400. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Ensure tachometer is compatible with ignition system. DO NOT allow tachometer terminal (IG-) to become grounded, as it could result in damage to ignitor and/or ignition coil.
Connect tachometer between chassis ground and terminal IG- of DLC No. 1. See Figure. See COMPONENT LOCATIONS .