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DTC codes / Volkswagen codes / P1652

P1652 · VolkswagenCheck DTC Memory Of Transmissions ECU

P1652 is a Volkswagen-specific code that the engine control module (ECM) sets when it cannot retrieve or validate the fault memory stored in the transmission control module (TCM). The ECM is essentially telling you that the transmission computer has diagnostic trouble codes (DTCs) of its own that need to be read, or that communication with the TCM has failed.

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.

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