P27D4

Pressure Control Solenoid S Intermittent

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Incorrect gear shifting
Transmission slipping
Hard gear shifts
Check Engine Light Illuminates
Reduced transmission efficiency

Causes

Damaged solenoid wiring harness
Pressure control solenoid S malfunction
Problems with contacts in the electrical circuit
Transmission control module (TCM) malfunction
Corrosion or oxidation of contacts

How to Fix

Check the integrity of the solenoid wiring harness
Check the resistance and operation of the solenoid
Clean and check circuit contacts
Scan TCM for errors
Replace solenoid if necessary

Related codes

P27D3 P27D5 P27D6