The P2486: Exhaust Gas Temperature Sensor Circuit Low Bank 2 Sensor 5 refers to a situation where the exhaust gas temperature sensor (Bank 2 Sensor 5) is detecting a voltage lower than expected. This issue could stem from a faulty sensor, damaged wiring, or problems in the connectors, which can lead to incorrect exhaust temperature readings and affect engine performance.
P2486 – Quick Overview
Code | Information |
---|---|
Meaning | P2486: Exhaust Gas Temperature Sensor Circuit Low Bank 2 Sensor 5 |
Is it serious? | Yes, this can lead to inaccurate exhaust temperature monitoring, affecting the vehicle’s efficiency and potentially causing further engine damage. |
Possible causes | – Low voltage in the exhaust gas temperature sensor circuit for Bank 2 Sensor 5 – Faulty sensor – Wiring or connector issues |
How to diagnose? | – Measure voltage in the exhaust gas temperature sensor circuit for Bank 2 Sensor 5 – Inspect and test the sensor and wiring – Replace faulty components if needed |
P2486 Meaning
The P2486: Exhaust Gas Temperature Sensor Circuit Low Bank 2 Sensor 5 code indicates that the exhaust gas temperature sensor circuit for Bank 2 Sensor 5 is experiencing a lower voltage than expected. This may happen due to a faulty sensor, poor electrical connections, or damaged wiring. Such a condition can prevent proper exhaust temperature monitoring, leading to poor engine performance and increased emissions.
Step-by-step diagnostic guide
Action | Description | Tools Needed |
---|---|---|
Check for Other Codes | Use an OBD-II scanner to check for additional related codes, as these may help determine if there are multiple issues. | OBD-II Scanner |
Measure Voltage in Sensor Circuit | Use a multimeter to measure the voltage in the exhaust gas temperature sensor circuit for Bank 2 Sensor 5 and compare it to the manufacturer’s specification. | Multimeter |
Inspect the Sensor | Visually inspect the exhaust gas temperature sensor for any signs of damage, corrosion, or loose connections. Ensure it is correctly mounted. | Flashlight, Safety Gloves |
Test Sensor Resistance | Measure the resistance of the sensor using a multimeter and compare it with the expected values specified by the manufacturer. If the resistance is out of range, replace the sensor. | Multimeter |
Inspect Wiring and Connectors | Examine the wiring and connectors for damage, loose connections, or corrosion. Repair or replace any problematic components to restore proper voltage. | Flashlight, Multimeter |
Verify Voltage Supply | Ensure that the voltage supply to the sensor is correct and does not have any drops or irregularities that might cause low readings. | Multimeter |
Replace Faulty Components | If the sensor or any wiring is determined to be faulty, replace the necessary components to restore circuit functionality. | Replacement Sensor, Tools Set |
Clear the Code and Test Drive | Clear the code using an OBD-II scanner, then perform a test drive to see if the issue has been resolved. | OBD-II Scanner, Vehicle Owner’s Manual |
Recheck for Codes | After the test drive, re-scan the vehicle to confirm that the P2486 code has not returned. If it persists, additional diagnostics will be required. | OBD-II Scanner |

OBD-II scanner Buyer’s Guide
- Scanner features explained
- Different types of scanners
- Scanners for coding/odometer/ECU/checks
- Best picks + discount codes

Hi, I am Juraj “Yuri” Lukacko. I got frustrated by unhelpful and scammy mechanics, so I decided to learn everything about car diagnostics myself. I test dozens of new car diagnostic tools every month along with learning new strategies to fix and customize cars. About Juraj Lukacko (Yuri)