Current Draw, Checking

WARNING: This page is about a different car, the 2016 Volkswagen Beetle, 2015 Volkswagen Beetle, 2014 Volkswagen Beetle, and 2013 Volkswagen Beetle. However, it is still accessible from the selected car via links, so may be relevant.

Special Tools And Workshop Equipment Required

Trim Removal Wedge 3409
Vehicle Diagnostic Tester - Test Adapter - 5 Pin VAS 5565
Pickup Clamp such as Pickup Clamp VAG 1526B/2

-- Remove the bench seat. Refer to REMOVAL AND INSTALLATION .

-- If equipped, remove the cover -1- and Fuel Pump Control Module -J538- -2- from the fuel delivery unit.

Fig 1: Identifying Cover With Fuel Pump Control Module J538

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-- Unclip the cover -1- at the tabs -arrows- using the Trim Removal Wedge 3409.

Fig 2: Identifying Right Cover

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-- Pull on the connector -1- without pressing the release to make sure the connection is secure.

Fig 3: Fuel Pump Control Module Connector

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-- If the connector was not connected correctly, it could cause a fault.

-- Disconnect the connector -arrow-.

-- Check the contacts on the connector and on the fuel delivery unit for damage.

-- Attach the Vehicle Diagnostic Tester - Test Adapter - 5 Pin VAS 5565 to the connector and to the fuel delivery unit.

Fig 4: Connecting Current Clamp To Red Wire On Test Instrument Adapter/DSO (5-Pin) VAS 5565

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-- Connect the current probe -A- to the red cable labeled "current probe" for the Vehicle Diagnostic Tester - Test Adapter - 5 Pin VAS 5565.

-- Start the engine and let it run at idle.

-- Measure current draw of fuel pump.

Specified value: maximum 10 amps

NOTE:

The fuel pump starting current may be higher than the specified value briefly when starting the engine.

If the malfunction in the fuel system only occurs sporadically, the test can also be performed during a road test. A second person is needed to do this.

If Current Draw Is Exceeded:

-- Check the fuel lines for possible restrictions (kinks) or blockages.

-- Remove the fuel delivery unit. Refer to FUEL DELIVERY UNIT and inspect it for debris.

-- Fuel Pressure, Checking. Refer to FUEL PRESSURE, CHECKING .

If Current Draw Is Exceeded:

-- If the fuel pump is faulty, replace the fuel delivery unit. Refer to FUEL DELIVERY UNIT .