Test Procedure

-- Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK

Start diagnosis

-- Lift the vehicle on a hoist to access the turbocharger recirculating valve connector.

Checking internal resistance

-- Disconnect the Turbocharger Recirculating Valve -N249- electrical harness connector -2-.

Fig 1: Disconnecting Turbocharger Recirculating Valve N249 Electrical Harness Connector

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Using a multimeter, check the Turbocharger Recirculating Valve -N249- terminals 1 to 2 for resistance.

Specified value: 13.6 Ω +/- 5 ohms (at room temperature)

If the specified value was Not obtained:

-- Replace the Turbocharger Recirculating Valve -N249-. Refer to the Repair Information.

If the specified value was obtained:

Checking Voltage supply

-- Using a multimeter, check the Turbocharger Recirculating Valve -N249- electrical harness connector terminal 1 to engine ground.

-- Start the engine.

Specified value: Battery voltage.

-- Switch the ignition OFF.

If the specified value was Not obtained:

-- Check the wiring for an open, short circuit to each other, high resistance or short to ground.

-- Check the electrical harness connector for damage, corrosion, loose or broken terminals.

-- If necessary, repair the wiring connection.

If no malfunctions are found in the wiring: