Powertrain
generic / SAE
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.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number7 / D0
Possible causes
- Control wire shorted to B+ high
- Open solenoid coil medium
- Connector pins corroded - high contact resistance low
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 200–1800 €
- Estimated time: 1.5–6 h
- Component: pressure control solenoid r
- Component: wiring harness
- MIL / check engine light
- limp mode possible
Sources
References
sae:J2012