P2D27
- Powertrain
- Manufacturer-specific
Get it looked at now
Driving may cause further damage or leave you stranded. Arrange service promptly rather than waiting.
Coolant Pump F Control Circuit Performance/Stuck Off
This code is in our catalogue but has not yet been through editorial review, so the guidance below is limited to what our structured data supports. We publish deeper diagnostic content only after a code has been reviewed — here is why.
Coolant pump F is commanded on but does not respond as expected. Pump motor stuck, relay weld, or driver fault.
A trouble code records what a control module measured. It does not identify which part failed. Test before replacing anything.
- Safe to drive
- Driving may cause further damage or leave you stranded. Arrange service promptly rather than waiting.
- Urgency
- Get it looked at now
- Will it pass emissions
- Not affected
- Check engine light
- Solid
| # | Cause | How often | Component |
|---|---|---|---|
| 1 | Pump motor mechanically stuck | Very common | — |
| 2 | Output driver fault | Common | — |
| 3 | Carbon or debris buildup preventing free movement | Occasional | — |
Ordering reflects how often each cause is responsible in general, not a probability for your vehicle. Confirm by testing.
- Coolant Pump F
- Wiring Harness
- ECM
- Definition
- Generic code set (SAE J2012 / ISO 15031-6) via the OBDexopen database, dedicated to the public domain under CC0-1.0.
- Diagnostic guidance
- Written and reviewed in-house. See our editorial policy.
- Review status
- Awaiting review
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