The P2485: Exhaust Gas Temperature Sensor Circuit/Open Bank 2 Sensor 5 refers to a condition where the exhaust gas temperature sensor circuit (Bank 2 Sensor 5) has an open circuit. This means that there is a break or disconnection in the circuit, which can be caused by a faulty sensor, damaged wiring, or disconnected connectors. This issue can prevent accurate temperature monitoring and may lead to performance issues.
P2485 – Quick Overview
Code | Information |
---|---|
Meaning | P2485: Exhaust Gas Temperature Sensor Circuit/Open Bank 2 Sensor 5 |
Is it serious? | Yes, an open circuit can prevent accurate monitoring of exhaust temperature, potentially leading to damage or performance issues. |
Possible causes | – Open circuit in the exhaust gas temperature sensor circuit for Bank 2 Sensor 5 – Faulty sensor – Wiring or connector issues |
How to diagnose? | – Inspect the exhaust gas temperature sensor circuit for Bank 2 Sensor 5 for open circuits – Check wiring and connectors – Replace faulty components as needed |
P2485 Meaning
The P2485: Exhaust Gas Temperature Sensor Circuit/Open Bank 2 Sensor 5 code indicates that there is an open circuit in the exhaust gas temperature sensor circuit for Bank 2 Sensor 5. An open circuit means that there is a complete disconnection somewhere in the electrical pathway, preventing the sensor from functioning correctly. This can be caused by damaged wiring, a faulty sensor, or disconnected connectors. This failure can lead to inaccurate temperature readings and impact engine performance.
Step-by-step diagnostic guide
Action | Description | Tools Needed |
---|---|---|
Check for Other Codes | Use an OBD-II scanner to determine if there are other related codes that could indicate multiple or connected issues. | OBD-II Scanner |
Inspect Wiring for Open Circuit | Visually inspect the wiring for Bank 2 Sensor 5 to identify any signs of cuts, breaks, or disconnections in the circuit. | Flashlight, Safety Gloves |
Check Connectors | Inspect the connectors for Bank 2 Sensor 5, ensuring they are properly attached and free of corrosion or damage. | Flashlight, Multimeter |
Test Sensor Continuity | Use a multimeter to test the continuity of the exhaust gas temperature sensor circuit to verify if there is an open circuit. If no continuity, the circuit is open. | Multimeter |
Inspect the Sensor | Remove and visually inspect the exhaust gas temperature sensor for any physical damage. Replace the sensor if found to be faulty. | Flashlight, Safety Gloves |
Repair or Replace Damaged Wiring | If broken or damaged wiring is found, repair or replace the affected sections to restore the circuit. | Wire Repair Kit, Tools Set |
Replace Faulty Sensor | If the sensor is faulty or there is no continuity through the sensor, replace it with a new one. | Replacement Sensor, Tools Set |
Clear the Code and Test Drive | Clear the code using an OBD-II scanner and perform a test drive to ensure that the issue has been resolved. | OBD-II Scanner, Vehicle Owner’s Manual |
Recheck for Codes | After the test drive, re-scan the vehicle to verify that the P2485 code has not returned. If it does, further diagnostics may be needed. | OBD-II Scanner |

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