OBD-II code · Powertrain (generic, extended)
P27D0 Pressure Control Solenoid R Control Circuit High
Voltage on the pressure control solenoid R control line is above 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 P27D0?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyControl wire shorted to B+
- PossibleOpen 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 R, Wiring Harness
Related codes
- P0971Pressure Control Solenoid C Control Circuit High
- P2721Pressure Control Solenoid D Control Circuit High
- P2730Pressure Control Solenoid E Control Circuit High
- P2739Pressure Control Solenoid F Control Circuit High
- P27C0Pressure Control Solenoid N Control Circuit High
- P27C8Pressure Control Solenoid P Control Circuit High
- P27D8Pressure Control Solenoid S Control Circuit High
- P27E0Pressure Control Solenoid T Control Circuit High
- P2815Pressure Control Solenoid G Control Circuit High
- P281EPressure Control Solenoid H Control Circuit High
- P2827Pressure Control Solenoid J Control Circuit High
- P2830Pressure Control Solenoid K Control Circuit High
- P27CDPressure Control Solenoid R Control Circuit/Open
- P27CEPressure Control Solenoid R Control Circuit Range/Performance
- P27CFPressure Control Solenoid R Control Circuit Low
- P27D1Pressure Control Solenoid S Performance/Stuck Off
- P27D2Pressure Control Solenoid S Stuck On
- P27D3Pressure Control Solenoid S Electrical
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.