View source for P11AF/004527

==  P11AF/004527 - Cam Adjustment Actuator B; Cylinder 4: Elec. Malf. or Open Circuit ==

==== Possible Symptoms ====

* Possible loss of power, due to AVS (Audi Valve Lift System) default position affecting lower (1000~3100 RPM) torque curve
* All non affected actuators are switched to the Large Valve Lift position.
* Fault code entry without EPC or Check Engine lights due to no deterioration of Exhaust Emissions

==== Possible Causes ====

* Wiring and/or connections (short circuit?)
* Voltage supply failure to the Cam Adjustment Actuators
* Faulty Engine Control Module

==== Possible Solutions ====

* Check wiring and connections
* Check for battery voltage at Cam Adjustment Actuators
* Check Engine Control Module with [Output tests] 

==== Special Notes ====

* See the Ross-Tech forum post: [https://forums.ross-tech.com/index.php?threads/25709/#post-220583 - Case Study: P11A7 00 - Audi Valve Lift System - E888 engines]
** This Fault code is for the '''F373-Control element (8) for camshaft adjustment, Cylinder [4]'''</span>
** AVS system function when coolant temperature is above 14°F (–10°C). 
** Maximum of 3.0 amperes for each Cam Adjustment Actuator




[[Category:Fault Codes]]