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Home >> Dodge and Ram >> 2008 >> Sprinter 2500, Van Cargo, 3.0 45 >> Repair and Diagnosis >> External Pages >> Different car >> Section 12 (Electronic Control Modules (Service Information)) >> MODULE, Engine Control, Diesel >> Operation >> Operation >> ECM Operating Modes >> Ignition Switch On (Engine Off)

Ignition Switch On (Engine Off)

WARNING: This page is about a different car, the 2009 Dodge Sprinter. However, it is still accessible from the selected car via links, so may be relevant.

When the Electronic Ignition Switch/Central GateWay (EIS/CGW) is turned to the ON position, it will send the ON signal to the ECM through the CAN-C bus. When the ECM receives the ON signal, it will send a signal through the LIN bus to actuate the glow plug module, which provides battery voltage to the glow plugs. At the same time, the ECM actuates the fuel pump relay, which battery voltage to the in-tank (low pressure) fuel pump. If the engine is not started within approximately 4 seconds of the ECM receiving the ON signal from the EIS/CGW, the ECM will turn off the in-tank fuel pump.

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