The input turbine speed sensor detects rotation of the input shaft of the input shaft speed sensor transmission. The computer uses that information, along with the output shaft speed sensor to determine if the transmission is operating according to plan. If the computer detects a difference between the input shaft speed , and the expected output shaft speed, it will adjust transmission pump pressure to prevent clutch disc slip. If adding pressure doesn't solve the problem, it will set a trouble code.
Regardless of the design though, the purpose of all clutch actuating systems is to improve the driving experience by removing the need for manual clutch operation by the driver. Computer-controlled clutch actuating systems work particularly well in dual clutch systems where one clutch controls gear changes of even-numbered gear ratios, and a second clutch that controls gear changes of odd-numbered ratios.
Difficulty Level (Easy)
Repair Time (45 Min.)
||Cost Prediction : $ 80-120|
If your p1397 system voltage out of self test range check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system P1397 and engine control unit are in charge of monitoring a bunch of different p1397 system voltage out of self test range, and if they get a reading that's a little out of whack, up pops the check engine light.
P1397 is a kind of Powertrain Trouble Code
Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air.
You can view according P1397 DTC for your car model. We selected several models to see obd2 solutions click and view it.
|+P1397 Oldsmobile Starfire||+P1397 Ford Kuga||+P1397 Mercury Montclair||+P1397 Beijing BJ+750||+P1397 Mercedes-Benz B+class|