OBD Codes List

Diagnostic reference · P27CD

P27CD

Pressure Control Solenoid R Control Circuit/Open

System
Transmission (P code)
Lamp
Check Engine Light
Category
Powertrain - Transmission

What it means

P27CD means Pressure Control Solenoid R Control Circuit/Open.

Where it lives

For P27CD, the circuit described runs through the solenoid. The description of P27CD reports the solenoid as open.

Check these first

  • An open in the pressure control solenoid R control circuit
  • A short to ground or voltage on the pressure control solenoid R control wire
  • A failed pressure control solenoid R
  • A corroded or backed out pin at the pressure control solenoid R connector

What to do next

  1. Read pressure control solenoid R status on a scan tool
  2. Command pressure control solenoid R on and off
  3. Test the pressure control solenoid R control circuit for open and short faults
  4. Check the pressure control solenoid R connector pins
  5. Replace pressure control solenoid R if the circuit tests good
  6. Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.