OBD Guide

P27DF

Pressure Control Solenoid T Control Circuit Low

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

Symptoms

  • Check Engine light comes on
  • Rough engine operation
  • Power reduction
  • Shifting problems (if the solenoid is connected to the transmission)
  • Increased fuel consumption

Causes

  • Pressure control solenoid T malfunction
  • Open or short circuit in control circuit
  • Poor contact in connectors
  • Engine control unit (ECU) malfunction
  • Problems with power or grounding of the circuit

How to Fix

  1. Check the integrity of the solenoid control circuit
  2. Check the solenoid resistance (compare with factory values)
  3. Inspect connectors and contacts for corrosion or damage
  4. If necessary, replace pressure control solenoid T
  5. Check the operation of the engine control unit

Related codes

Error P27DF by Vehicle Brand