OBD Guide

P27DD

Pressure Control Solenoid T Control Circuit/Open

P27DD is an OBD-II diagnostic trouble code meaning: Pressure Control Solenoid T Control Circuit/Open. Common causes: broken wires in the solenoid control circuit, poor contact in connectors. Estimated repair cost: $17–56.

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

Symptoms

  • Check Engine light comes on
  • Incorrect operation of the solenoid controlled system
  • Reduced engine performance
  • Possible jerking when shifting gears (if the solenoid is connected to the transmission)
  • Increased fuel consumption

Causes

  • Broken wires in the solenoid control circuit
  • Poor contact in connectors
  • Malfunction of the solenoid itself
  • Relay or fuse problems
  • Engine control unit (ECU) malfunction

How to Fix

  1. Check the integrity of wires and connectors in the control circuit
  2. Measure the solenoid resistance
  3. Check power and ground in the circuit
  4. If necessary, replace the solenoid
  5. Reset the error code and check if it returns

Related codes

Error P27DD by Vehicle Brand

FAQ

What does the P27DD code mean?

P27DD is an OBD-II diagnostic trouble code that indicates: Pressure Control Solenoid T Control Circuit/Open

What causes a P27DD error code?

The most common causes of P27DD include: Broken wires in the solenoid control circuit; Poor contact in connectors; Malfunction of the solenoid itself; Relay or fuse problems.

How do I fix a P27DD diagnostic trouble code?

To fix P27DD: Check the integrity of wires and connectors in the control circuit. Measure the solenoid resistance. Check power and ground in the circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P27DD?

Yes, but get it checked soon

How much does it cost to fix P27DD?

The estimated repair cost for P27DD is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat