p2181
Moderate
Dodge · Sedans & Muscle Cars
Coolant Temperature Inconsistency
Quick Answer
Error code P2181 on your Dodge Sedans & Muscle Cars means: Coolant Temperature Inconsistency. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Read coolant temperature sensor values
2
Compare actual vs reported temperature
3
Inspect thermostat housing for leaks
4
Replace faulty sensor or thermostat
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Coolant temperature sensor
Thermostat
Coolant
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