When is the p0797 OBD-II trouble code set?
When the P0797 OBD-II trouble code is set, the Powertrain Control Module (PCM) has detected a problem with the Transmission Pressure Control Solenoid “C”. Most automatic transmissions incorporate at least three solenoids that are solenoid A, B and C. The trouble codes related to the “C” solenoid are codes P0795, P0796, P0797, P0798 and P0799.
What is the code for pressure control solenoid C stuck on?
P0797 is a diagnostic trouble code (DTC) for “Pressure Control Solenoid C Stuck On”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic.
How does the PCM control the pressure solenoids?
Based on the signals from associated devices monitoring the speed of the vehicle, the PCM controls the pressure solenoids to direct fluid at the appropriate pressure to various hydraulic circuits that change the transmission gear ratio at the correct time.
What causes a transmission solenoid to malfunction?
When a transmission solenoid is malfunctioned, in most cases the problem is not the electrical part of the solenoid; the problem is foreign material obstructing the mechanical function of the solenoid or the flow of the fluid through the transmission valve body.
When the P0797 OBD-II trouble code is set, the Powertrain Control Module (PCM) has detected a problem with the Transmission Pressure Control Solenoid “C”. Most automatic transmissions incorporate at least three solenoids that are solenoid A, B and C. The trouble codes related to the “C” solenoid are codes P0795, P0796, P0797, P0798 and P0799.
P0797 is a diagnostic trouble code (DTC) for “Pressure Control Solenoid C Stuck On”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic.
Based on the signals from associated devices monitoring the speed of the vehicle, the PCM controls the pressure solenoids to direct fluid at the appropriate pressure to various hydraulic circuits that change the transmission gear ratio at the correct time.
When a transmission solenoid is malfunctioned, in most cases the problem is not the electrical part of the solenoid; the problem is foreign material obstructing the mechanical function of the solenoid or the flow of the fluid through the transmission valve body.