U0797 Mercedes 35 Hp OBD Code

OBD/2 U0797 error code description and symptoms.

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.

Gear changes are accomplished by a command from the TCM to energize the clutch actuator to release the clutch; after which various actuators inside the transmission disengage the current gear, and depending on current operating conditions, engage the next higher or lower gear ratio. All of this happens much faster than a human driver could change gears, and in most applications, gear changes are as smooth and seamless as on any fully automatic transmission.

U0797 Mercedes 35 Hp Error Code Repair Process :

If your injector high sides shorted together 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 U0797 and engine control unit are in charge of monitoring a bunch of different injector high sides shorted together, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Mercedes 35 Hp U0797 OBD2 Code

A common cause of code U0797 is the failure of Injector High Sides Shorted Together, but there are several other possible causes as well, such as ;

Faulty Air Flow Meter
Engine Control Module (ECM)
Incorrect Positive Crankcase Ventilation (PCV) hose connection
Damaged VCT phaser

U0797 is a kind of Network Trouble Code

U-code indicates that engine communication errors and shows lost communication with engine parts.U-Codes are fairly straight forward, given all of the articles and technical publications that have been written regarding these problematic codes. In most cases, it just comes down to identifying the module that isn't communicating with the other modules on the CAN bus line for whatever reason.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

About Us | Contact | Privacy

U0797 Mercedes 35 Hp OBD Code

U0797 Mercedes 35 Hp Error Code Repair Process :

Common Causes of Mercedes 35 Hp U0797 OBD2 Code

U0797 code for other Mercedes cars