Code Definition

P1920 — Engine mount control solenoid bank 1/2 open or shorted to ground

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

About P1920

P1920 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.

When P1920 is stored, the module has detected an open (broken or disconnected) electrical path in the monitored circuit; a short-circuit (voltage pulled to ground or to supply) in the monitored circuit; and a bank-specific fault, meaning it applies only to one cylinder bank of a multi-bank engine.

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.

P1920 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 triggered when the engine control module (ECM) detects an open circuit or a short-to-ground condition in the engine mount control solenoid circuit for Bank 1 or Bank 2. Active engine mounts use electronically controlled solenoids to adjust mount stiffness, reducing vibrations and improving ride comfort. A fault in this circuit may cause increased engine vibrations and affect overall drivability.

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