In order to move around things like gears and clutch packs, the computer needs little plunger-like devices called pressure control solenoids, to maintain the correct amount of hydraulic pressure based on the throttle position and gear selection. If the ECU detects an electrical problem with the pressure control solenoid labeled E, a P2725 DTC will be stored.
How Serious is the Code?
The P2725 diagnostic trouble code is actually pretty serious. If the ECU cannot control a particular pressure control solenoid, a number of drivability and safety issues can occur. Like engine stalling, limp mode and erratic transmission behavior.
Symptoms of a P2725 include:
- Harsh, delayed or erratic shifts
- Slipping in-and-out of gear
- Engine stalling
- Transmission gets stuck in gear
- Vehicle won’t move when in gear
- Reduced fuel economy
- Transmission overheats
- Limp mode
- Dirty transmission fluid/filter
- Low transmission fluid
- Damaged wiring
- Damaged connectors
- Failed pressure control solenoid
- Failed transmission pump
- Internal pressure blockage
- Valve body issue
- TCM or ECU failure
How to Diagnose the Code?
When first diagnosing a P2725 OBDII diagnostic trouble code, the technician should first check to see if the transmission fluid is clean and at the proper level. Dirty or low transmission fluid can lead to a number of hydraulic pressure problems, including pressure control solenoid problems. If everything looks good, then the wiring and connectors on the transmission harness need to be checked. If there are no loose wires or broken connectors, and the pressure control solenoid itself will need to be tested. If no issues are found there, then the ECU programming, valve body and transmission pump should be considered.
What Repairs Will Fix P2725?
- Change the transmission fluid and filter
- Replace the pressure control solenoid
- Repair or replace a faulty transmission pump
- Repair or replace transmission valve body
- Repair or replace wiring/connectors
- Reflash or replace TCM/ECU
- P2722 – Pressure Control Solenoid E
- P2723 – Pressure Control Solenoid E Perf or Stuck Off
- P2724 – Pressure Control Solenoid E Stuck On
- P2726 – Pressure Control Solenoid E Intermittent
- P2727 – Pressure Control Solenoid E Ctrl Circ / Open
- P2728 – Pressure Control Solenoid E Ctrl Circ Range/Perf
- P2729 – Pressure Control Solenoid E Ctrl Circ Low
- P2730 – Pressure Control Solenoid E Ctrl Circ High