Description of DTC code P0796

Most vehicle brands include at least 3 solenoids in their models in order to control the fluid pressure for the best performance of a given automatic transmission. Therefore, the vehicle computer receives electrical signals according to the pressure inside the solenoids.

Through the transmission pressure of the solenoids, the values of the fluid are monitored. In this way, it is sought to verify if the system is working as expected. A correct operation of the transmission system depends greatly on the pressure, taking into account that the gear changes are carried out successfully when the pressure is adequate. The solenoids have the function of sending the fluid with the correct pressure to the various circuits that are in charge of the ratio changes.

The storage of the P0796 OBD2 fault code occurs when performance problems or lock-up conditions are discovered in the Pressure Control Solenoid C.

Symptoms of fault code P0796

  • Check Engine Lamp illuminated.
  • Transmission slipping.
  • Transmission temperatures are rising.
  • Fuel consumption will be totally irregular.
  • The car goes into limp mode.
  • The code may be accompanied by other ignition related symptoms.

Causes of OBD2 P0796

The P0796 OBDII fault code is stored by the following:

  • Pressure Control Solenoid C-related wires or connectors may be in poor condition.
  • Transmission fluid may have contaminated conditions.
  • Damaged transmission pump.
  • Hydraulic passages or transmission filters may be blocked.
  • Pressure Control Solenoid C could be in bad condition.
  • Damaged transport body.
  • PCM error.

Possible solutions of the DTC code P0796

To troubleshoot DTC P0796 OBD2 consider the following:

  • As a first step consult the TSB.
  • Check the transmission fluid in order to verify that its condition and level are adequate. If you discover inconsistencies, proceed with the appropriate adjustments.
  • Check the integrity of the pressure control solenoid C wiring and connections. If you detect deficiencies due to wear or burns, proceed with the corresponding repairs.
  • Check, repair, and replace the transmission valve body if necessary.
  • Replace the transmission pump if it is defective.
  • Replace the pressure control solenoid.
  • As a last option, you can replace the PCM. Although it is not common, it can be faulty or out of configuration.

Codes related to P0796

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