This code indicates that the vehicle's main computer network can no longer exchange data with the Lighting Driver Control Module D. It typically points to a break in the communication wiring, a power or ground issue to that specific module, or a failure of the module itself.
Corroded, disconnected, or damaged wiring and connectors affecting the communication, power, or ground lines to the lighting module.
A blown fuse, open circuit, or poor ground connection specifically preventing the Lighting Driver Control Module D from powering up.
An internal hardware or software failure within the lighting module itself causing it to drop off the network.
Shorted or open circuits on the communication bus (CAN/LIN) caused by another module or wiring fault taking down the network.
An internal fault in the powertrain control module (extremely rare, but possible if the PCM is the originating node failing to communicate).
It depends on the lighting failure. If exterior lights are inoperative, it is unsafe and likely illegal to drive at night or in poor weather.
No. Drivers are sometimes told to replace the PCM for communication codes, but this is almost always incorrect. The cause is usually wiring, a fuse, or the lighting module itself.
It is a specialized computer that controls specific vehicle lighting functions, receiving commands over the vehicle's network from the main computers.
Yes, low system voltage or a failing battery can cause modules to shut down or drop off the communication network, triggering communication codes.