Test sequence

• Switch ignition off.
• Disconnect connector from Recirculating valve for turbocharger -N249-.
• Measure resistance between terminals of valve.

Specified value: 25...35

If specified value is not obtained:

• Replace Recirculating valve for turbocharger -N249-:

• Vehicles with engine code AWD, see item  16
• Vehicles with engine code AWP, AWW, see item  17

• Erase DTC memory of Engine Control Module (ECM), see DIAGNOSTIC MODE 4: RESET/ERASE DIAGNOSTIC DATA .
• Generate readiness code, see READINESS CODE, GENERATING .

If specified values are obtained:

• Connect test box to control module wiring harness, see CONNECT TEST BOX FOR WIRING TEST .
• Check wire between test box socket 105+2-pin connector terminal 2 for open circuit according to wiring diagram.

  Wire resistance: max: 1.5 Ω

• Also check the wire for short circuit to B+ and Ground (GND).

If no malfunctions are found in wire:

• Check wire between 2 -pin connector terminal 1 and the Fuel Pump (FP) Relay -J17- for open circuit according to wiring diagram.

Wire resistance: max: 1.5 Ω

If no malfunctions are found in wires:

• Replace Engine Control Module (ECM), see REPLACING ENGINE CONTROL MODULE (ECM)