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Home >> Suzuki >> 2007 >> SX4 Base, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 239 (Engine Control System - System And Component Checks, Specifications, Special Tools And Equipment) >> Fuel Pump Relay Circuit Check >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2006 Suzuki Verona. However, it is still accessible from the selected car via links, so may be relevant.

When the ignition switch is turned ON, the Engine Control Module (ECM) will activate the fuel pump relay and run the in-tank fuel pump. The fuel pump will operate as long as the engine is cranking or running and the ECM is receiving ignition reference pulses.

If there are no reference pulses, the ECM will shut off the fuel pump within 2 seconds after the ignition switch is turned ON.

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