OBD-II code · Powertrain (generic, extended)
P2182 Engine Coolant Temperature Sensor 2 Circuit
A general electrical fault is reported on engine coolant temperature sensor 2 — open, shorted, or out of plausibility. Sensor 2 is typically at the radiator outlet or as redundancy on the second cylinder bank.
Is it safe to drive with P2182?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySensor failed
- PossibleHarness fault
Symptoms
- Check engine light on
- Cooling fan runs constantly or not at all
- Cabin heater weak or excessively hot
- Possible long warm-up time or hard cold start
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–2 h
- Emissions test
- Likely to fail
- Parts involved
- Engine Coolant Temperature Sensor 2
Related codes
- P01E3Engine Coolant Temperature Sensor 3 Circuit
- P2AFCEngine Coolant Temperature Sensor 4 Circuit
- P2B2BEngine Coolant Temperature Sensor 5 Circuit
- P2BB6Engine Coolant Temperature Sensor 6 Circuit
- P217FFuel Injector Group H Supply Voltage Circuit High
- P2180System Too Rich Off Idle Bank 2
- P2181Cooling System Performance
- P2183Engine Coolant Temperature Sensor 2 Circuit Range/Performance
- P2184Engine Coolant Temperature Sensor 2 Circuit Low
- P2185Engine Coolant Temperature Sensor 2 Circuit High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.