OBD Guide

P27B9

Pressure Control Solenoid N Performance/Stuck Off

P27B9 is an OBD-II diagnostic trouble code meaning: Pressure Control Solenoid N Performance/Stuck Off. Common causes: pressure control solenoid malfunction, dirty or clogged solenoid. Estimated repair cost: $17–56.

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

Symptoms

  • Incorrect gear shifting
  • Hard or abrupt shifts
  • Reduced engine power
  • Check Engine Light Illuminates
  • Increased fuel consumption

Causes

  • Pressure control solenoid malfunction
  • Dirty or clogged solenoid
  • Solenoid circuit problems
  • Low or contaminated transmission fluid
  • Mechanical problems in the transmission

How to Fix

  1. Check the level and condition of the transmission fluid
  2. Inspect the solenoid electrical circuit for damage.
  3. Clean or replace pressure control solenoid
  4. Check the operation of the transmission after repair
  5. Reset the error code and check if it returns

Related codes

Error P27B9 by Vehicle Brand

FAQ

What does the P27B9 code mean?

P27B9 is an OBD-II diagnostic trouble code that indicates: Pressure Control Solenoid N Performance/Stuck Off

What causes a P27B9 error code?

The most common causes of P27B9 include: Pressure control solenoid malfunction; Dirty or clogged solenoid; Solenoid circuit problems; Low or contaminated transmission fluid.

How do I fix a P27B9 diagnostic trouble code?

To fix P27B9: Check the level and condition of the transmission fluid. Inspect the solenoid electrical circuit for damage.. Clean or replace pressure control solenoid. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P27B9?

Yes, but get it checked soon

How much does it cost to fix P27B9?

The estimated repair cost for P27B9 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat