Test Procedure
WARNING: This page is about a different car, the 2014 Volkswagen Passat, 2013 Volkswagen Passat, and 2012 Volkswagen Passat. However, it is still accessible from the selected car via links, so may be relevant.
-- Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK
Start diagnosis
-- Disconnect the Reducing Agent Injector -N474- -3- electrical harness connector.
NOTE:
The exhaust system MUST be at room temperature or the readings will be incorrect.