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P0781 - 1-2 Shift Malfunction

Possible causes
- Low transmission fluid level
- Dirty transmission fluid
- Faulty shifting solenoid valve
- Shifting solenoid valve harness is open or shorted
- Shifting solenoid valve circuit poor electrical connection
What does this mean? What does this mean?
When is the code detected?
The P0781 code is detected when actual gear position and the commanded gear position are different
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Transmission may not shift to the next gear.
P0781 Description

This P0781 code indicates that the 1-2 shift valve in the valve body is locked in the direction of the spring compression. The Transmission Control Module (TCM) controls the gearshifts by turning the shift solenoid valves ON/OFF and switching oil pressure to the valves in the valve body. The TCM calculates the actual transmission gear by comparing the signals from the input speed sensor and the output speed sensor.

P0781 Information for specific makes
P0781 AUDI 1-2 Shift Malfunction
P0781 CHRYSLER 1-2 Shift Malfunction
P0781 DODGE 1-2 Shift Malfunction
P0781 FORD 1-2 Shift Error
P0781 JEEP 1-2 Shift Malfunction
P0781 LEXUS 1-2 Shift Valve
P0781 MAZDA 1-2 Shift Valve Malfunction
P0781 MERCEDES-BENZ 1-2 Shift Malfunction
P0781 SUZUKI 1-2 Shift Malfunction
P0781 TOYOTA 1-2 Shift Valve
P0781 VOLKSWAGEN 1-2 Shift Malfunction
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