Silverado 3500 2WD V8-6.6L DSL Turbo (2006)
Glow Plug Control Module: Description and Operation
GLOW PLUG/CONTROLLER
The glow plug controller is a solid state device which operates the glow plugs. The glow plug controller is connected to the following circuits:
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The fuel heater ignition 1 voltage circuit
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The battery voltage circuit
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The CAN communication circuit located between the engine control module (ECM) and the glow plug controller
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The engine ground circuit
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The glow plug supply voltage circuits located between the glow plug controller and the glow plugs.
The glow plug diagnostic circuits are directly monitored individually by using a separate transistor to control current to each glow plug. Individual
diagnosis is thus possible for every glow plug.
