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Home >> Audi >> 2002 >> S4 Quattro, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing >> Modules, Motors, Relays & Solenoids >> Fuel Pump Relay
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Fuel Pump Relay

Fuel Pump (FP) relay supplies voltage to the fuel pump as well as several other fuel injection components. ECM grounds FP relay when ECM receives RPM signal. Fuel pump relay is located in passenger compartment relay panel. To test fuel pump relay, see fuel pump relay related DTC(s) under DIAGNOSTIC TROUBLE CODE DEFINITIONS in appropriate SELF-DIAGNOSTICS article.

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