The P0C86: Hybrid Battery Temperature Sensor ‘F’/’G’ Correlation refers to a mismatch between the temperature readings from Hybrid Battery Temperature Sensors ‘F’ and ‘G’. This could be caused by faulty sensors, wiring problems, or issues with the circuit affecting one or both sensors.
P0C86 – Quick Overview
Code | Information |
---|---|
Meaning | P0C86: Hybrid Battery Temperature Sensor ‘F’/’G’ Correlation |
Is it serious? | Yes, incorrect temperature readings can lead to improper battery management, affecting the safety and efficiency of the hybrid battery system. |
Possible causes | – Mismatch between sensor readings – Faulty temperature sensors – Wiring or circuit issues |
How to diagnose? | – Check the correlation between sensors ‘F’ and ‘G’ – Test both sensors – Inspect wiring and connections |
P0C86 Meaning
The P0C86: Hybrid Battery Temperature Sensor ‘F’/’G’ Correlation code indicates that there is a discrepancy between the temperature readings from Sensors ‘F’ and ‘G’ in the hybrid battery system. This could be due to one or both sensors providing inaccurate readings, or there may be an issue with the wiring or circuit that affects the sensor signals.
Step-by-step diagnostic guide
Action | Description | Tools Needed |
---|---|---|
Check for Other Codes | Use an OBD-II scanner to check for additional codes related to the sensors or circuit that may provide more information. | OBD-II Scanner |
Check Sensor Correlation | Use a diagnostic tool to compare the readings from both Hybrid Battery Temperature Sensors ‘F’ and ‘G’ to see if they align with each other and with the manufacturer’s specifications. | Diagnostic Tool, Multimeter |
Test the Temperature Sensors | Test both sensors independently to ensure they are providing accurate temperature readings and are functioning properly. | Multimeter, Temperature Sensor Tester |
Inspect the Sensor Circuit | Visually inspect the wiring and circuit for both sensors for any signs of damage, wear, or corrosion that could cause discrepancies in their readings. | Flashlight, Multimeter |
Check Wiring and Connections | Inspect the wiring and connectors between the sensors and the control unit for any loose or corroded connections that could lead to inconsistent readings. | Flashlight, Multimeter |
Test Circuit Continuity | Perform a continuity test on the circuit for both sensors to ensure there are no breaks or shorts that could be affecting sensor performance. | Multimeter |
Clear the Code and Test Drive | After repairs or adjustments, clear the P0C86 code using an OBD-II scanner and take the vehicle for a test drive to verify that the issue is resolved. | OBD-II Scanner, Vehicle Owner’s Manual |
Recheck for Codes | After the test drive, re-scan the vehicle to ensure the P0C86 code has not returned. | 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)