Hybspec

P0955

Średni

Code P0955 indicates a fault in the manual shift mode circuit (Auto Shift Manual Mode) in an automatic transmission. It concerns the system that allows the driver to manually select gears, known as Tiptronic, Sport mode, or Manumatic.

Fault code P0955 indicates a problem in the circuit responsible for manual gear shifting in an automatic transmission. This may mean a damaged switch, wires, or connectors, resulting in no response to attempts at manual gear changes. For an accurate diagnosis, we recommend a visit to a professional workshop.

Symptoms

• Check Engine Light (MIL) is on • Manual shift mode does not work or works incorrectly • Inability to change gears using paddle shifters or the lever in manual mode • The transmission may remain in automatic mode despite attempting to engage sequential mode • Intermittent or complete ignoring of gear change commands in manual mode

Possible causes

• Open or short circuit in the manual mode switch wiring harness • Corroded, loose, or damaged connectors at the switch or transmission control module (TCM) • Faulty manual mode switch (stuck, intermittent, or with an electrical defect) • Poor ground or power supply issue in the circuit • Blown fuse or damaged relay in the circuit • Chafed or damaged wire insulation causing intermittent shorts

Affected systems

Skrzynia automatycznaTransmission Control Module (TCM)Manual mode switch / selectorElectrical wiring and connectorsBody Control Module (BCM) — in some integrations

Related codes

P0950Średni

Uszkodzony obwód sterowania ręczną zmianą biegów w automatycznej skrzyni biegów (Auto Shift Manual). Kod oznacza nieprawidłowość w obwodzie elektrycznym przełącznika trybu sekwencyjnego.

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Does code P0955 require professional diagnostics?

The code alone is not enough. To find the cause, you need to read live data, check freeze frame conditions, and compare with vehicle behavior. Book a diagnostic session.