Shift solenoids play an important role in automatic transmission operation. Automatic transmissions are usually controlled by the vehicle’s computer, and the computer uses the solenoids to properly manage the movement of transmission fluid between the different hydraulic circuits. As a result, a change in transmission ratio is made as needed. This provides the best fuel efficiency, as well as increases engine performance at the lowest possible speeds.
When the diagnostic code P0760 OBDII is stored, it shows that the actual gear ratio is not within the manufacturer’s set parameters. This is because the transmission shift solenoid “C” has been working wrongly.