A4 Quattro Wagon L4-2.0L Turbo (BPG) (2005)
-
Remove the screws - arrows - and cover from the E-Box in the plenum chamber.
-
Using a screwdriver, remove the retainer bar - arrow - and Engine Control Module (ECM) J623 and position aside.
-
Remove the Motronic Engine Control Module (ECM) Power Supply Relay J271 - 2 - from the E-Box.
-
Remove the Motronic Engine Control Module (ECM) Power Supply Relay J271 - 2 - from the E-box.
-
Connect the Test Box 105 Pin VAG1598/42 to the wiring harness of the Engine Control Module (ECM) J623. The ECM is not connected.
-
Using the Test Box 105 Pin VAG1598/42 and Multimeter V.A.G 1526 A or equivalent, check the following wiring connection for an open circuit.
Relay carrier position 2 Terminal
Test box Socket
4
69
Specified resistance 1.5 Ohms max.