Current Draw, Checking

-- Remove the rear seat bench. Refer to "Rear Seats" in Removal and Installation .

-- Remove the cover that is on the right side of the fuel delivery unit, when viewed in the direction of travel.

-- First, pull on the 5 pin connector -1- without pressing the release to make sure it is connected securely. If the connector was not connected correctly, it could cause a fault.

Fig 1: Identifying Connectors -1- And -2-

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Disconnect the connector -1-.

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

-- Install the test instrument adapter/DSO (5-pin) VAS 5565 between the connectors on the fuel delivery unit and cover.

Fig 2: Connecting Current Clamp To Red Wire On Test Instrument Adapter/DSO (5-Pin) VAS 5565

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Connect the current clamp -A- to the red wire of the test instrument adapter/DSO (5-pin) VAS 5565 with the words "current clamp" on it.

-- Start the engine and run at idle speed.

-- Measure the current draw of the fuel pump.

Specified value: Max. 16 amps.

NOTE:

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

If malfunction in fuel system is sporadic, test can also be performed during a road test, but a second person is required.

If the Current Draw Is Exceeded

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