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Removing and installing control unit for reducing agent metering systemJ880 > < Control unit for reducing agent metering system - exploded view

A4 Mk3

Checking control unit for reducing agent metering systemJ880
Checking control unit for reducing agent metering system -J880-
t  The control unit for reducing agent metering system -J880- actuates the transfer pump for reducing agent -V436- and the reducing agent heaters and processes the signals from the tank sender for reducing agent -G684-.
t  You can check the control unit for reducing agent metering system -J880- via the Guided Fault Finding function → Vehicle diagnostic tester.
   

Removing and installing control unit for reducing agent metering systemJ880 > < Control unit for reducing agent metering system - exploded view