P2184
Engine Coolant Temperature Sensor 2 Circuit Low
P2184 is an OBD-II diagnostic trouble code meaning: Engine Coolant Temperature Sensor 2 Circuit Low. Common causes: malfunction of coolant temperature sensor no. 2, open or short circuit in the sensor circuit. Estimated repair cost: $6–28.
Symptoms
- Incorrect temperature readings on the dashboard
- Problems turning on the cooling fan
- Deteriorating fuel economy
- Unstable engine operation at idle
- Possible appearance of the Check Engine indicator
Causes
- Malfunction of coolant temperature sensor No. 2
- Open or short circuit in the sensor circuit
- Poor contact in the sensor connector
- Corroded contacts or damaged wiring
- Malfunction of the engine control unit (rare)
How to Fix
- Check the condition of the sensor and its connector
- Check the integrity of the wiring to the sensor
- Measure sensor resistance at different temperatures
- If necessary, replace the coolant temperature sensor
- Reset the error code and check if it appears again
Related codes
Error P2184 by Vehicle Brand
FAQ
What does the P2184 code mean?
P2184 is an OBD-II diagnostic trouble code that indicates: Engine Coolant Temperature Sensor 2 Circuit Low
What causes a P2184 error code?
The most common causes of P2184 include: Malfunction of coolant temperature sensor No. 2; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Corroded contacts or damaged wiring.
How do I fix a P2184 diagnostic trouble code?
To fix P2184: Check the condition of the sensor and its connector. Check the integrity of the wiring to the sensor. Measure sensor resistance at different temperatures. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2184?
Limited driving only, diagnose soon
How much does it cost to fix P2184?
The estimated repair cost for P2184 is $6–28. Actual cost depends on your vehicle, location, and labor rates.
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