A4 Quattro Cabriolet L4-2.0L Turbo (BWT) (2009)
-
Install the test box. Refer to Fuel Injection and Ignition Repair Information.
If the manufacturers test box is not being used. Perform the following step.
-
Remove the Engine Control Module (ECM) (J623). Refer to => [ Engine Control Module, Replacing ] See: Computers and Control
Systems/Engine Control Module/Service and Repair.
-
Using a Multimeter, check the Evaporative Emission (EVAP) Canister Purge Regulator Valve (N80) electrical harness connector terminal 2 to
Engine Control Module (ECM) (J623) electrical harness connector T60 terminal 5 for resistance.
Specified value: 1.5 ohms max.
If the specification is not obtained:
-
Check the wiring for an open circuit, short circuit to each other, Battery (+), and Ground (GND).
-
Check the electrical harness connector for damage, corrosion, loose or broken terminals.
-
If necessary, repair the wiring connection.
If the specification was obtained:
-
Erase the DTC memory. Refer to => [ Diagnostic Mode 04 - Erase DTC Memory ] See: Computers and Control Systems/Testing and
Inspection/Scan Tool Testing and Procedures/Diagnostic Modes/Diagnostic Mode 04 - Erase DTC Memory.
-
Perform a road test to verify repair.
If the DTC does not return:
Repair complete, Generate readiness code. Refer to => [ Readiness Code ] See: Computers and Control Systems/Testing and Inspection/Monitors,
Trips, Drive Cycles and Readiness Codes.
-
End diagnosis.
If the DTC does return and no malfunction is detected in the wiring and the voltage supply was OK:
-
Replace the Engine Control Module (ECM) (J623 ). Refer to => [ Engine Control Module, Replacing ] See: Computers and Control
Systems/Engine Control Module/Service and Repair.
-
Assembly is performed in the reverse of the removal.
Final procedures