A4 Quattro Wagon L4-1.8L Turbo (AWM) (2001)
Fuel Pump Relay: Testing and Inspection
Fuel Pump (FP) Relay -J17- And Activation, Checking
Special Tools and Equipment
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VAG1526A
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VAG1594A
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VAG1598/31
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VAS5051 with VAG5051/1
Voltage is supplied to the Fuel Pump (FP) and several components of the injection system via the Fuel Pump (FP) relay -J17-.
Engine must be turning for Fuel Pump (FP) relay -J17- to close. This means that the relay does not receive Ground (GND) (via ECM) until the ECM
recognizes RPM signals.
Test requirement:
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Battery voltage at least 12.7 V
Function test of Fuel Pump (FP) relay
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Remove driver-side storage compartment.
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Connect VAS5051 tester and select vehicle system "01 - Engine electronics". Ignition must remain switched on for this. Refer to "Scan Tool