Ls160 Wiring Diagram !!top!! Jun 2026

Whether you are swapping an LQ4 into a Nissan 240sx, an older muscle car, or simply trying to diagnose a no-start condition in your GM truck, understanding the is the single most critical step in your project.

The controller sends a ground signal to the relay coil. If the dash indicator lights but engine starts hard, measure voltage at the glow plug busbar during preheat—should be 10.5V–12V. Ls160 Wiring Diagram

Without these four connections, your LS160 will not even crank, let alone start. Whether you are swapping an LQ4 into a

If you wire up your LS160 and the engine cranks but refuses to start, the problem is almost certainly VATS. Without these four connections, your LS160 will not

: This includes the battery, alternator, starter motor, and ignition switch . Issues such as failing to start in "Run" mode often require inspecting the starter relay and ignition switch contacts.

Have you chased a ghost in an LS160 wiring harness? Share your story in the comments below—misery loves company, and so do mechanics.