OBD Guide

P27D1

Pressure Control Solenoid S Performance/Stuck Off

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Incorrect gear shifting
  • Check Engine light comes on
  • Reduced transmission efficiency
  • Jerks when shifting gears
  • Increased fuel consumption

Causes

  • Solenoid jammed
  • Open or short circuit in the circuit
  • Control unit malfunction
  • Solenoid contamination
  • Wiring problems

How to Fix

  1. Check solenoid electrical connections
  2. Measure the solenoid resistance
  3. Check the mechanical operation of the solenoid
  4. Clean or replace solenoid
  5. Check and repair wiring

Related codes

Error P27D1 by Vehicle Brand