P0781 Suzuki - 1-2 Shift Malfunction
- 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
When is the code detected?
The P0781 code is detected when actual gear position and the commanded gear position are different
- Engine Light ON (or Service Engine Soon Warning Light)
- Transmission may not shift to the next gear.
P0781 Suzuki 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.
Need more help?
Do you need more help with the P0781 Suzuki code? ask a question to our users or search the top hand picked automotive forums for more information
Repair Shops Around Your Area
Need parts to fix this code? Search hundreds of stores at the same time and compare prices
Help us improve Engine-Codes.com. Leave a comment below or tell us if the information above help you fix the code. What are symptoms is your vehicle for the P0781 Suzuki code?
Have you replaced any parts?
Any information is appreciated. Thanks