Current Draw, Checking: Procedure

WARNING: This page is about a different car, the 2018 Volkswagen Jetta, 2017 Volkswagen Jetta, 2016 Volkswagen Jetta, and 2015 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

The connector couplings must >>audibly<< engage when locking.

Note the color coding when installing the connector coupling. Refer to Coupling Allocation !

Pull on the connector coupling to check for secure fit.

Disconnect the connector couplings. Refer to CONNECTOR COUPLINGS .

Voltage supply OK:

-- Pay attention to all safety precautions. Refer to SAFETY PRECAUTIONS .

-- Follow the guidelines for clean working conditions. Refer to PARKING/AUXILIARY HEATER AND FUEL SYSTEM CLEAN WORKING CONDITIONS .

-- Remove the bench seat. Refer to REAR SEATS .

-- Unclip the cover -1- at the tabs in direction of -arrows- using the Trim Removal Wedge :3409 .

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

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

-- Release and 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 :VAS5565 to the connector and to the fuel delivery unit.

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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 :VAS5565 .

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

-- Measure the current draw of the fuel pump.

Specified value: maximum 9 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 required to do this.

If The Current Draw Is Exceeded:

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

-- Remove the fuel delivery unit and inspect it for debris. Refer to FUEL DELIVERY UNIT/FUEL LEVEL SENSOR, REMOVING AND INSTALLING .

-- Check the fuel pressure. Refer to FUEL PRESSURE, CHECKING, VEHICLES WITH FUEL FILTER IN FUEL DELIVERY UNIT FLANGE .

If No Malfunction Was Detected:

-- Replace the fuel delivery unit. Refer to FUEL DELIVERY UNIT/FUEL LEVEL SENSOR, REMOVING AND INSTALLING .