This code indicates a communication failure between the vehicle's main computer and the control module responsible for active aerodynamic components, such as grille shutters. It signifies that data is not being received from the specific network node designated as Module D. This is typically an electrical network issue rather than a mechanical engine problem.
Physical damage, corrosion, or moisture in the harness connecting to the aerodynamic module is the most frequent cause.
The aerodynamic control module may not be receiving voltage due to a failed fuse or relay in the supply circuit.
Internal electronic failure within the specific module can prevent it from transmitting or receiving network signals.
A corroded or loose ground connection can disrupt the module's ability to communicate on the vehicle network.
A short circuit on the communication lines can interrupt data flow between multiple control units.
Internal failure of the main powertrain computer is rare and should only be considered after all wiring and modules are verified.
No, replacing the PCM is rarely the fix for this code; wiring or the aerodynamic module itself is usually the culprit.
Generally yes, but engine cooling efficiency may be reduced, and fuel economy could decrease.
A single wiring break or power loss can cause several modules to report lost communication simultaneously.
This typically affects active grille shutters, air dams, or spoilers designed to manage airflow.