Glow Plugs
The glow plugs are 4.4 volt heaters in each of the cylinders that turn ON, then are pulse-width modulated when the ignition switch is turned to the RUN position prior to starting the engine. The glow plug controller remains pulsing the glow plugs a short time after starting, then are turned OFF.
A Wait to Start lamp on the instrument panel provides information on engine starting conditions. The Wait to Start lamp will not illuminate during post-start glow plug operation.