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Audi Workshop Service and Repair Manuals

All Technical Service Bulletins for Fuel Pressure Sensor:|240928|Page 624 > < All Technical Service Bulletins for Fuel Pressure Sensor:|240928|Page 622
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Fuel Pressure Sensor: Testing and Inspection

Low Fuel Pressure Sensor, Checking

Observe all safety precautions: => [ Safety Precautions ] See: Powertrain Management/Computers and Control Systems/Service Precautions/Safety
Precautions

View clean working conditions: => [ Clean Working Conditions ] See: Powertrain Management/Computers and Control Systems/Service
Precautions/Clean Working Conditions

Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.

For wiring diagrams, component locations, and connector views, Refer to the applicable wiring diagram.

Special tools, testers and auxiliary items required

‹› multimeter.

‹› Wiring diagram.

Test requirements

‹› The Fuel Pump (FP) Control Module (J538) OK. 

‹›  The Motronic Engine Control Module (ECM) ( J623 ) fuses OK.

‹› The fuel filter OK.

‹› The battery voltage at least 12.5 V.

‹› All electrical consumers switched off (radiator fan must NOT run during test).

‹› A/C switched off.

‹› The fuel tank at least 1/4 filled.

‹› The ignition switched off.

Test procedure

-

Perform a preliminary check to verify the customers complaint. Refer to => [ Preliminary Check ] See: Powertrain Management/Computers and
Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/Preliminary Check

Start diagnosis

-

Remove the engine cover with air filter.

Checking voltage

-

Disconnect the Low Fuel Pressure Sensor (G410 ) electrical harness connector - 2 -.

All Technical Service Bulletins for Fuel Pressure Sensor:|240928|Page 624 > < All Technical Service Bulletins for Fuel Pressure Sensor:|240928|Page 622