P2808 - PRESSURE CONTROL SOLENOID "G" PERFORMANCE / STUCK OFF

The proper operation of the transmissions is highly dependent on the correct amount of transmission fluid. To deliver such fluid, pressure control solenoids are used to send reference signals to the Powertrain Control Module (PCM) to determine the amount of fluid that will enter the transmission. Most automatic transmissions have three solenoids “A”, “B” and “C” built in, but in this code, the problem lies with solenoid “G” which means that the transmission is equipped with more solenoids for better performance.

When the PCM detects that the pressure control solenoid “G” is performing outside the normal parameters set by the manufacturer, the P2808 OBD2 diagnostic code will be set. The Check Engine service light will be displayed on the vehicle’s dashboard.

• MIL light illuminated.
• Engine performance problems.
• Fuel consumption increases.
• Transmission experiencing general problems.

The reasons for the DTC P2808 OBDII being stored are:

• Solenoid circuit wires and connectors may be faulty.
• The transmission fluid may be contaminated.
• The transmission pump could be malfunctioning.
• The pressure control solenoid "G" could have irregularities.

Consider the following recommendations to correct the P2808 OBD2 fault code:

• Check the TSB (Technical Service Bulletins).
• Check the wiring harness and connectors for damages. If you find deficiencies in one of these components, you should make the necessary corrections.
• Check that the transmission fluid has the proper levels and that it is free of contaminants. Also, check that the filter is not dirty or that the conduits through which the fluids circulate are blocked. Make the corresponding corrections.
• You must check that the relay of the solenoid circuit and the transmission pump are in good condition. If you find obvious damage that alters their functions, you must follow the manufacturer's instructions to make the appropriate repairs.
• Using a DVOM, check that the control solenoid is receiving the voltage and resistance levels required by the vehicle's data source. If the values differ significantly from those expected, the solenoid should be replaced.