Check U1797 Fault Code

When you check engine light came on code U1797 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However your vehicle's manufacturer may have a different definition for the U1797 OBD-II Diagnostic Network (U) Trouble Code. So you should chech it on our car models.

U1797 DTC specifically refers to the camshaft (cam) timing. In this case, if the cam timing is over-retarded, the engine light will be illluminated and the code will be set.

U1797 Possible Fix :

Small but critical, a spark plug makes the car move. Its function is to ignite the compressed fuel in the engine. A worn spark plug will cause a weak spark. It may even prevent ignition entirely, or cause ignition at the wrong time. A misfire will affect engine power and fuel economy and cause massive amounts of potential damage.

U1797 OBD-II Diagnostic Network (U) Trouble Code Description U1797 SCP (J1850) Lack of Acknowledgment for Door Locks so you have to check ODB-II Fault Code Check list. Reason For U1797 Code The reason of U1797 OBD-II Fault Code Check is U1797 SCP (J1850) Lack of Acknowledgment for Door Locks.

U1797 Solution:

Power Steering Pressure (PSP) Switch Signal Malfunction The PCM counts the number of times vehicle speed transitions from 0 to a calibratable speed. After a calibratable number of speed transitions the PCM expects that the PSP input should have changed. This DTC is set if the transition is not detected. Vehicle towed with engine running Power steering hydraulic concern was repaired but DTC was not erased PSP switch/shorting bar damaged SIG RTN circuit open PSP circuit open or shorted to SIGRTN PCM damaged Check, if possible, if vehicle was towed or power steering service was performed. Observe PSP V PID while checking wires for intermittents.

What does fault code U1797 mean ? What does a diagnostic reading U1797 mean ? How to fix OBD2 Code U1797 ? What do we know about U1797 code ?

How to Clear U1797 Trouble Code

An OBD 2 scanner is the best and safest way to erase a DTC from your car's system. This scanner communicates with the car's computer and instructs the computer to erase the code. It does not change or tweak the settings from inside the car or its systems.