MTA gearbox fault: P1773 insufficient hydraulic pressure

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MTA gearbox fault: P1773 insufficient hydraulic pressure


Lancia Musa 1.4 16V - 70 KW - Engine Code: 843A1000 - year 2007

Car remains with the gearbox locked and it is impossible to restart the engine. the gearbox warning light remains on.

Check: hydraulic oil level, correct functioning of the pressure accumulator, correct functioning of the electric pump, correct functioning of the clutch solenoid valve and the presence of any oil leaks from the solenoid valves.

CAUSE: we have verified that there is a hydraulic oil leak from the selection stroke sensor (figure below, position potentiometer
gear selection 2b).

SOLUTION: the case was solved by replacing the MTA electro-hydraulic unit.

 

Until next time... 

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