What causes a pressure control solenoid to go bad?
A faulty electronic pressure control solenoid is the most likely cause of this code; however, blocked transmission fluid passages, low or dirty transmission fluid, faulty electrical components within the circuit, or internal transmission failures could all be to blame.
What is the diagnostic code for pressure control solenoid C?
P0796 is a diagnostic trouble code (DTC) for “Pressure Control Solenoid C Performance or Stuck Off”. 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.
When to use pressure control solenoid code p0746?
The code P0746 is set by the PCM when the Pressure Control Solenoid “A” is not functioning properly or stuck in the “Off” position. Example of a transmission pressure control solenoid: What is the severity of this DTC?
How does the solenoid valve on an oil pump work?
Opening the exhaust port decreases the output fluid pressure regulated by the PC solenoid valve, which ultimately decreases line pressure. The line pressure solenoid valve regulates the oil pump discharge pressure to suit the driving condition in response to a signal sent from the Transmission Control Module (TCM).
What causes a pressure control solenoid to stop working?
Causes for this P2723 transmission code may include: Defective Pressure Control Solenoid. Dirty or contaminated fluid. Dirty or clogged transmission filter. Defective Transmission Pump.
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.
The code P0746 is set by the PCM when the Pressure Control Solenoid “A” is not functioning properly or stuck in the “Off” position. Example of a transmission pressure control solenoid: What is the severity of this DTC?
Opening the exhaust port decreases the output fluid pressure regulated by the PC solenoid valve, which ultimately decreases line pressure. The line pressure solenoid valve regulates the oil pump discharge pressure to suit the driving condition in response to a signal sent from the Transmission Control Module (TCM).
A transmission solenoid can fail due to electrical issues, or dirty fluid that’s caused the shift solenoid to become stuck open / closed.