What does code P1651 mean?

Q: What does code P1651 mean?

Data Bus Powertrain Missing Messages. P1651 on Volkswagen vehicles means the engine control module (ECM) has lost CAN (Controller Area Network) powertrain bus messages from one or more modules that should be broadcasting on that network. The ECM sets this code when it expects periodic data frames from a partner module and they stop arriving within the allowed timeout window.

DTC codes / Volkswagen codes / P1651

P1651 · VolkswagenData Bus Powertrain Missing Messages

P1651 on Volkswagen vehicles means the engine control module (ECM) has lost CAN (Controller Area Network) powertrain bus messages from one or more modules that should be broadcasting on that network. The ECM sets this code when it expects periodic data frames from a partner module and they stop arriving within the allowed timeout window.

SystemPowertrain

Code typeVolkswagen specific

SeverityMedium

Fix difficultyProfessional

AreaComputer and output circuits

Guidance is general and written for Volkswagen vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.