Therefore, you likely need to replace the thermostat. While it's the most likely culprit, it's *possible* that other issues could contribute to this code, such as:
* Faulty thermostat housing: Cracks or leaks in the housing can prevent proper coolant flow.
* Worn or clogged coolant passages: Restricting coolant flow.
* Failing coolant temperature sensor: Though less likely, a faulty sensor could give a false reading.
Recommendation: Start by replacing the thermostat. It's the cheapest and easiest fix first. If the problem persists *after* replacing the thermostat, then investigate the other possibilities listed above. A mechanic can help diagnose more complex issues.
