Code result
P25AE
Piston Cooling Oil Pressure Too Low
Moderate severity
What it means
With the piston-cooling jets commanded on, the dedicated oil-pressure sensor in that gallery reads below the safe threshold. Insufficient flow to the jets means real piston cooling is not happening — the ECM warns the driver and may reduce torque to protect the pistons.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Low engine oil level
highOne of the most commonly reported causes for this code — check this first.
Sludge-clogged oil gallery
mediumA plausible cause — test and verify before replacing parts.
Worn oil pump
lowLess common, but worth ruling out after the more likely causes.
Related help
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