Code result
P2D27
Coolant Pump F Control Circuit Performance/Stuck Off
High severity
What it means
Coolant pump F is commanded on but does not respond as expected. Pump motor stuck, relay weld, or driver fault.
Is it safe to drive?
No — stop driving
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.
Most likely causes
Pump motor mechanically stuck
highOne of the most commonly reported causes for this code — check this first.
Output driver fault
mediumA plausible cause — test and verify before replacing parts.
Carbon or debris buildup preventing free movement
lowLess common, but worth ruling out after the more likely causes.
Related help
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