April 5, 2026: LEMON Manuals is launched! Read the announcement.

Glow Plug Relay

The glow plug relay controls glow plug on-time. The glow plug relay performs 3 functions:

Pre-Glow - Pre-heating time with ignition switch on.
After-Glow - Pre-heating time with ignition switch on after glow plug light goes out (after-glow lasts a few seconds).
Cranking Glow - Pre-heating time with ignition switch on and engine in cranking mode.