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

Our certified mechanics come to you · 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 $114.99 . Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.0 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 $114.99 $20.0
Toyota $114.99 $20.0
BMW $124.99 $20.0
SCHEDULE P2182 DIAGNOSTIC Get a fair and transparent estimate upfront

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.

Check Engine Light
trouble codes
P2182

No more waiting rooms! Our mechanics will come to you to diagnose and fix the P2182 code.

SCHEDULE P2182 DIAGNOSTIC
Get a $20 credit for the follow-up repair

Recent Check Engine Light is on Inspection reviews

Excellent Rating

(7400)

Rating Summary
6879
249
58
41
173
6879
249
58
41
173
 at YourMechanic

David

13 years of experience
393 reviews
David
13 years of experience
Chevrolet Malibu L4-2.4L - Check Engine Light is on Inspection - Marietta, Georgia
He explained everything to me in detail on what I needed to know about my car. Definitely recommend him for getting the job done.
 at YourMechanic

Raymond

37 years of experience
402 reviews
Raymond
37 years of experience
Toyota Camry L4-2.2L - Check Engine Light is on - Las Vegas, Nevada
Raymond did a great job however I was charged for two hours labor and he was only here less than 45 minutes. should I expect this on future appointments with your mechanic ?
 at YourMechanic

Shane

17 years of experience
217 reviews
Shane
17 years of experience
Volkswagen EuroVan V6-2.8L - Check Engine Light is on Inspection - Austin, Texas
Arrived on time. Explained the issues he found and how he will fix it. I have parts on order and will schedule an appointment to have Shane install the parts when they arrive.
 at YourMechanic

Kanstantsin

19 years of experience
51 reviews
Kanstantsin
19 years of experience
Ford F-150 V8-4.6L - Check Engine Light is on Inspection - Littleton, Colorado
Kanstantsin arrived early. Was very courteous and professional. Will highly recommend to anyone. Thank you Kanstantsin.


More related articles

P0505 OBD-II Trouble Code: Idle Control System Malfunction
P0505 code definition Idle Control System Malfunction What the P0505 code means P0505 is an OBD-II generic code that the engine control...
P0349 OBD-II Trouble Code: Camshaft Position Sensor A Circuit Intermittent (Bank 2)
P0349 P0349 code definition Your vehicle’s PCM has found an improper wave form or voltage reading from the camshaft circuit A in engine bank 2. What the P0349 code means The camshaft position sensor (https://www.yourmechanic.com/services/camshaft-position-sensor-replacement) works with the notches, or...
P0922 OBD-II Trouble Code: Gear Shift Forward Actuator Circuit Low
P0922 means an abnormally low voltage reading from the actuator circuit has occurred due to a faulty actuator, shift shaft, or wiring issues.

Related questions

P0700 Transmission Control System MIL Request
Hi! A P0700 code (https://www.yourmechanic.com/article/p0700-obd-ii-trouble-code-transmission-control-system-malfunction-by-spencer-clayton) stored in the powertrain control module (PCM) indicates that there is a code stored (https://www.yourmechanic.com/article/how-to-read-and-understand-check-engine-light-codes-by-jason-unrau) in the transmission control module (TCM) that can be accessed by looking into the TCM with an appropriate scan tool....
Blinking Check Engine Light, issues with rpm, possible spark plug issue?
Hey there. The gas smell you experience is most likely due to the unburned fuel due to the engine misfiring. Since you smell unburned fuel, the cause is most likely spark-related. If any spark plug is not firing correctly, the...
2004 Mazda 2 DY3W ODB II reader error codes P0031,P0841,P0351,P0733,P0715....what needs to be repaired?
I will explain each code in turn. To resolve all codes, the recommended service to request is a check engine light diagnostic (https://www.yourmechanic.com/services/check-engine-light-is-on-inspection). If you request that service, the responding certified mechanic will get this taken care of for you....

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 (855) 347-2779 · hi@yourmechanic.com