DTC U029F: Lost Communication With Evaporative Emission System Leak Detection Control Module

2012 Volkswagen Beetle Base, 2.5L Eng VIN P, Standard TransSECTION DTC U029F: Lost Communication With Evaporative Emission System Leak Detection Control Module
WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2011 Mercury Milan, 2011 Mercury Mariner, 2011 Mercury Grand Marquis, 2011 Lincoln Town Car, and 2011 Lincoln Navigator L. However, it is still accessible from the selected car via links, so may be relevant.
U029F - LOST COMMUNICATION WITH EVAPORATIVE EMISSION SYSTEM LEAK DETECTION CONTROL MODULE

Description:  Network DTC concerns occur during module-to-module communication.
Possible Causes: 
  • Invalid data network concerns - data is transferred within the normal inter-module message, but contains known invalid data. The transmitting module logs a DTC related to the invalid data concern.
  • Missing message network concerns - missing message concerns are logged by the module upon failure to receive a message from another module within a defined retry period.
  • Inline fuse open (if equipped)
Diagnostic Aids:  Check for other powertrain control module (PCM) DTCs or PCM related symptoms. Diagnose all other PCM DTCs or PCM related symptoms first.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST HZ .
RENDER: 1.0x

NO RELATED

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