P2182 OBD-II Trouble Code: Engine Coolant Temperature Sensor 2 Circuit

Our certified mechanics come to you · 12-month, 12,000-mile warranty

SCHEDULE P2182 DIAGNOSTIC Get a fair and transparent estimate upfront
Red-stars EXCELLENT RATING ON

Cost of diagnosing the P2182 code

P2182 is a diagnostic trouble code (DTC) for "Engine Coolant Temperature Sensor 2 Circuit". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $70.00. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $30.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford$70.00$30.00
Toyota$70.00$30.00
BMW$70.00$30.00
SCHEDULE P2182 DIAGNOSTIC Get a fair and transparent estimate upfront

Check Engine Light

What the P2182 code means?

P2182 is an OBD-II generic code for the engine control module (ECM) detecting the engine coolant temperature sensor (ECT) #2 does not correlate with ECT sensor #1 at cold engine start up.

What causes the P2182 code?

  • The engine control module (ECM) checks the ECT sensors when the engine is first started cold to see if the two sensors correlate with each other and with the ambient air temperature sensor.

  • The ECT sensor is not reading correct when compared to the other sensors.

What are the symptoms of the P2182 code?

  • The Check Engine light will be illuminated and the code is set in ECM memory as a fault.

  • The ECM will ignore the ECT #2 sensor and test it each time the engine has a cold start to see if the same problem is happening.

How does a mechanic diagnose the P2182 code?

  • Scans for codes and documents the code in the ECM and looks at the freeze frame data for failure.

  • Scans the engine only after the engine has been sitting for at least 8 hours and is at ambient temperature.

  • Scans the ECM and check readings from the two ECT sensors and the ambient air temperature sensor to see if the ECT #2 sensor is different from the other two sensors. All three should be within a few degrees of each other.

  • Checks the ECT sensor connector for problems like loose or corroded pins.

Common mistakes when diagnosing the P2182 code?

  • Clearing ECM memory codes before checking the freeze frame data for the main failure problem, so the failure may be duplicated and repaired

  • Failing to clear the ECM codes after the codes are fixed so the ECM will enable the system to normal again

  • Failing to repair any connector issues before replacing the ECT sensor

How serious is the P2182 code?

Code P2182 is a code indicating the ECT sensors do not match each other and if the second sensor fails then the engine may have running issues. This will fail the vehicle for emissions testing.

What repairs can fix the P2182 code?

Additional comments for consideration regarding the P2182 code

Code P2182 is for the second ECT sensor and should not cause any running issues with the engine except turning on the check engine light. Failure to fix the problem will keep the check engine light on and if another fault happens you would not be alerted to an issue since the check engine light would already be on. You cannot pass the emission tests with this code and the light on.

Need help with a P2182 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

trouble codes
Check Engine Light
P2182

Fast and easy Check Engine Light is on Inspection service at your home or office.

SCHEDULE P2182 DIAGNOSTIC
Get a fair and transparent estimate upfront

Recent Check Engine Light is on Inspection reviews

Excellent Rating


YourMechanic Check Engine Light is on Inspection Service

Average Rating

4.5/5

Number of Reviews

3,484

Rating Summary
3,176
153
40
23
92
3,176
153
40
23
92

Richard

10 years of experience
415 reviews
Richard
10 years of experience
This is the second time I’ve had Richard work on my car. He always does an outstanding job and is quick, knowledgeable and professional. Highly recommended!!
2012 DODGE CHALLENGER - CHECK ENGINE LIGHT IS ON - LAS VEGAS, NEVADA

Michael

13 years of experience
372 reviews
Michael
13 years of experience
Mike was an absolute professional when he arrived. He walked me thru the whole process of my repairs and also made good recommendations for preventive issues. His mechanical knowledge and good customer services was a breath of air and greatly appreciated :-)
2007 CHEVROLET AVALANCHE - CHECK ENGINE LIGHT IS ON INSPECTION - MARIETTA, GEORGIA

Rodrigo

10 years of experience
85 reviews
Rodrigo
10 years of experience
Rodrigo was exactly on time, very professional and friendly. He assessed my car, let me know the exact problem when a previous mechanic from a shop in my area was unable to. I felt he was very honest and sincere letting me know the level of urgency that I deal with the issue. Absolutely no pressure. I will absolutely use Rodrigo the next time I need anything to do with my car and will tell everyone about him. This is such a great service, I will never go to another mechanic again. It is so convenient. I couldn’t be happier. :)
2013 SMART FORTWO - CHECK ENGINE LIGHT IS ON - LAS VEGAS, NEVADA

Ricardo

8 years of experience
223 reviews
Ricardo
8 years of experience
Great service and was very helpful on what maintenance my vehicle needed and what to expect in the future. Would definitely recommend to anyone and will.
2004 MITSUBISHI LANCER - CHECK ENGINE LIGHT IS ON - LOS ANGELES, CALIFORNIA

More related articles

P0222 OBD-II Trouble Code: Throttle/Pedal Position Switch/Sensor B Circuit Low Input
P0222 code definition Throttle/Pedal Position Switch/Sensor B Circuit Low Input What the P0222...
Veteran and Military Driver Laws and Benefits in Idaho
The state of Idaho offers a number of benefits and perks for those Americans who have either served in an Armed Forces branch in the...
Veteran and Military Driver Laws and Benefits in New Mexico
The state of New Mexico offers a number of benefits and perks for those Americans who have either served in an Armed Forces branch...

Related questions

Q: My car's air bag light is flashing with code 34

The airbag light code 34 means that there could be a poorly mated connector on the airbag sliding contact that may not push the shorting bars back into their fully retracted positions. There also could be a short across the...

Q: Why would I continue to have a P0106 code in my 2009 Ford Explorer

If you are continuing to get this code then you either got a bad sensor or you have an issue with a clog in the EGR lines. Both are common. Also, if the check engine light was not cleared after...

Q: p0303, p1313, p0420. codes come up. no flashing and now signs. what do I do?

Hi there. Sounds like there are a few things going on. First the code P1313 means that the timing chain has jumped a tooth making the camshaft and crankshaft out of sync. The chain tensioner may need replaced if it...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1-800-701-6230 · hi@yourmechanic.com