Code Definition

P1907 — Controller Area Network data bus fault

System: Powertrain  |  Type: Manufacturer-Specific  |  Make: Volkswagen

About P1907

P1907 is a manufacturer-specific powertrain diagnostic trouble code recorded for Volkswagen vehicles. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

P1907 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

This fault code is set when the engine control module (ECM) detects a communication issue on the Controller Area Network (CAN) bus. The CAN bus is responsible for transmitting data between various control modules, such as the ECM, transmission control module (TCM), ABS module, and other vehicle systems. A fault in this network can lead to communication failures, warning lights, or system malfunctions.

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