OBD2 Car ScannerWhat does P2738 mean?
P2738 stands for Pressure Control Solenoid F Control Circuit Low. The transmission control system has found a problem. You may notice harsh, late or missing gear changes.
Powertrain codes cover the engine, transmission and emissions. When the car's computer sees a reading outside its normal range, it stores this code and may turn on a warning light on the dashboard.
Common causes
- Low or old transmission fluid
- Faulty shift solenoid
- Faulty transmission speed or temperature sensor
- Damaged wiring
- Internal transmission wear
What to do
- Read all stored and pending codes with a scanner. Several codes together often point to one cause.
- Note the freeze frame data (speed, temperature, load) recorded when the code was set.
- Inspect the wiring and connectors of the part named in the code for damage, corrosion or looseness.
- Fix the most likely and cheapest cause first, then clear the code and drive to see if it comes back.
Read this code from your own car
Plug in a cheap ELM327 adapter and the app shows every fault code, what it means and how to fix it.
Frequently asked questions
What does P2738 mean?
P2738 means “Pressure Control Solenoid F Control Circuit Low”. It belongs to the transmission group: The transmission control system has found a problem. You may notice harsh, late or missing gear changes.
Is it safe to drive with P2738?
Avoid driving long distances. This kind of fault can cause damage or affect safety, so get it checked as soon as possible.
How do I clear P2738?
Fix the cause, then clear the code with an OBD2 scanner or app. If the fault is still there, the code will come back.
Related codes
- P2734Pressure Control Solenoid F Electrical
- P2735Pressure Control Solenoid F Intermittent
- P2736Pressure Control Solenoid F Control Circuit/Open
- P2737Pressure Control Solenoid F Control Circuit Range/Performance
- P2739Pressure Control Solenoid F Control Circuit High
- P2740Transmission Fluid Temperature Sensor B Circuit
- P2741Transmission Fluid Temperature Sensor B Circuit Range/Performance
- P2742Transmission Fluid Temperature Sensor B Circuit Low
Code meanings can vary by manufacturer. This page is general guidance, not a repair manual. Always confirm the cause before replacing parts.