P27CBPressure Control Solenoid R Electrical
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- An electrical fault of unspecified kind on solenoid R is what P27CB stands for. There is no public manufacturer description of this exact code. GM (shift solenoid 4 in the Corvette DCT table 23OBDG07) and Ford (SPV4 of the TR9070, 2024 overview) both use solenoid R, yet they break its wiring faults down into P27CD, P27CF and P27D0 rather than one lumped code. CARB 13 CCR 1968.2 obliges the module to detect circuit faults on such actuators. In practice the same checks apply as for the detailed codes: winding resistance against specification, pin fit inside the gearbox connector, insulation of the harness and, last of all, the output stage of the TCM.
- What you may notice
- MIL on
- Gear selection limited
- Emergency mode possible
- Likely causes
- LikelySolenoid R winding resistance out of specification
- PossiblePoor pin fit in the gearbox connector
- PossibleDamaged harness insulation
- RareTCM output stage fault
- 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.