K 1500 Suburban 4WD V8-393 6.5L DSL Turbo VIN S (1996)
Glow Plug Relay: Description and Operation
Glow Plug Location
The glow plug relay is mounted at the rear of the right cylinder head, which is a solid state device that operates the glow plugs. The PCM uses an ignition
voltage signal in order to control the solid state circuitry of the glow plug relay.
