OBD Guide

P25AB

Piston Cooling Oil Control Circuit High

P25AB is an OBD-II diagnostic trouble code meaning: Piston Cooling Oil Control Circuit High. Common causes: open or short circuit in control circuit, malfunction of the piston cooling solenoid valve. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • Increased engine noise
  • Engine overheating
  • Unstable operation at high speeds

Causes

  • Open or short circuit in control circuit
  • Malfunction of the piston cooling solenoid valve
  • Wiring Harness Problems
  • Engine control unit malfunction
  • Dirty or clogged oil passages

How to Fix

  1. Check the integrity of the control circuit
  2. Check the operation of the solenoid valve
  3. Inspect the wiring harness for damage
  4. Check the condition of the oil channels
  5. If necessary, replace faulty components

Related codes

Error P25AB by Vehicle Brand

FAQ

What does the P25AB code mean?

P25AB is an OBD-II diagnostic trouble code that indicates: Piston Cooling Oil Control Circuit High

What causes a P25AB error code?

The most common causes of P25AB include: Open or short circuit in control circuit; Malfunction of the piston cooling solenoid valve; Wiring Harness Problems; Engine control unit malfunction.

How do I fix a P25AB diagnostic trouble code?

To fix P25AB: Check the integrity of the control circuit. Check the operation of the solenoid valve. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P25AB?

Limited driving only, diagnose soon

How much does it cost to fix P25AB?

The estimated repair cost for P25AB is $17–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat