P27BEPressure Control Solenoid N Control Circuit Range/Performance
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P27BE means the control circuit of solenoid N is electrically intact but behaves implausibly, for example a measured current that does not follow the command. No manufacturer documents P27BE publicly. GM's Corvette dual-clutch table 23OBDG07 does monitor exactly this for synchronizer valve 2, comparing target current with the current estimated from duty cycle and battery voltage, but files a deviation above 70 % for 60 ms or above 400 mA for 300 ms under P27C0 rather than here. Ford's TR9070 list also has no entry for it. CARB 13 CCR 1968.2 asks for a functional check of automatic transmission solenoids and, where none is feasible, at least circuit fault detection. Likely causes are a coil with drifting resistance, high connection resistance or a weak driver stage.
- What you may notice
- MIL on
- Slow or incomplete gear engagement on one shift rod
- Likely causes
- LikelySolenoid N coil resistance out of specification
- PossibleHigh resistance at connector or crimp
- RareUnstable supply voltage to the TCM
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €100 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.