audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Fuel Rail > < Fuel Pressure and Residual Pressure Before High Pressure Pump, Checking|Page 3476
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Fuel Pump Control Unit: Testing and Inspection

Fuel Pump Control Module, Checking, TFSI

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On vehicles with the TFSI engine, the fuel pump is supplied with voltage via the Fuel Pump (FP) Control Module J538.

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Fuel Pump (FP) Control Module J538 testing occurs in "Guided Fault Finding" operating mode.

Fuel Rail > < Fuel Pressure and Residual Pressure Before High Pressure Pump, Checking|Page 3476