OBD-II code · Powertrain (generic, extended)
P2738 Pressure Control Solenoid F Control Circuit Low
Voltage on the pressure control solenoid F control line is below the expected window. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
Is it safe to drive with P2738?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelyControl wire shorted to ground
- PossibleInternal short in solenoid coil
- Less likelyConnector pins corroded - high contact resistance
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1.5–6 h
- Emissions test
- Usually unaffected
- Parts involved
- Pressure Control Solenoid F, Wiring Harness
Related codes
- P0970Pressure Control Solenoid C Control Circuit Low
- P2720Pressure Control Solenoid D Control Circuit Low
- P2729Pressure Control Solenoid E Control Circuit Low
- P27BFPressure Control Solenoid N Control Circuit Low
- P27C7Pressure Control Solenoid P Control Circuit Low
- P27CFPressure Control Solenoid R Control Circuit Low
- P27D7Pressure Control Solenoid S Control Circuit Low
- P27DFPressure Control Solenoid T Control Circuit Low
- P2814Pressure Control Solenoid G Control Circuit Low
- P281DPressure Control Solenoid H Control Circuit Low
- P2826Pressure Control Solenoid J Control Circuit Low
- P282FPressure Control Solenoid K Control Circuit Low
- 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
- P273ATransmission Friction Element G Apply Time Range/Performance
- P273BTransmission Friction Element H Apply Time Range/Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.