U0507 is set when a control module (often the PCM) receives invalid or corrupted data from the convertible (folding) top control module. The fault usually originates in the top module itself, its wiring, or power/ground supplies, rather than in the engine computer. The code indicates a network communication problem that can prevent the convertible top from operating.
The module that manages the convertible top can fail, sending corrupted data onto the vehicle network.
Open, shorted, or corroded wires and poor connections can corrupt the data signals between the module and other controllers.
Insufficient voltage or a bad ground to the folding top control module can cause it to transmit invalid data.
A problem with the Controller Area Network bus (e.g., noise, resistance mismatch) can corrupt data frames, leading to this code.
Outdated firmware or incorrect calibration in the top control module may produce invalid data.
Although unlikely, the engine control module can misinterpret data from the top module; this is seldom the root cause.
No; the fault is usually in the folding top control module, its wiring, or power supply. Replacing the PCM rarely fixes the issue.
Yes; damaged, corroded, or loose connectors can corrupt data and trigger U0507.
Scan all modules for additional codes, then visually inspect the top module’s wiring and connectors.
The car can usually be driven, but the convertible top may not function; it’s best to diagnose and repair promptly.