P2486 — Exhaust Gas Temperature Sensor Circuit Low Bank 2 Sensor 5

OBD2 code P2486 flags a problem with the sensor and actuator circuits (exhaust gas temperature sensor circuit low bank 2 sensor 5). The car is usually drivable while you plan the repair. Common culprits: corroded, loose or damaged connector, blown fuse feeding the circuit, poor ground connection.

powertrain (engine/transmission)

Is it safe to drive?

Short-term driving is OK In most cases the car remains drivable, possibly with reduced performance or a disabled auxiliary system. If symptoms include stalling, no-start or brake/steering warnings, treat it as urgent.

How to diagnose with an OBD scanner

  1. Read the code and freeze frame Connect an OBD2 scanner, confirm P2486 is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
  2. Check for companion codes and TSBs Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many P0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
  3. Inspect wiring and connectors Visually inspect the wiring harness and connectors related to the exhaust gas temperature sensor circuit low bank 2 sensor 5 for damage, corrosion, chafing or poor contact.
  4. Subsystem check Measure reference voltage, ground and signal continuity at the component connector.
  5. Subsystem check Wiggle-test the harness while watching the signal in live data — dropouts reveal broken wires.
  6. Verify the repair Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P2486 does not return.

Approximate repair cost

Repair cost depends on which component actually failed. Typical scenarios for P2486 (parts and labor, USD, independent shop rates): Control module repair: $300–$1,000; Replace the faulty sensor or actuator: $150–$500; Repair wiring or connectors: $80–$250. Overall, fixing P2486 usually costs between $80 and $1,000. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.

Common questions

Is it safe to drive with P2486?

In most cases the car remains drivable, possibly with reduced performance or a disabled auxiliary system. If symptoms include stalling, no-start or brake/steering warnings, treat it as urgent.

Will P2486 clear itself?

Sometimes P2486 clears after a few drive cycles if the fault was intermittent — for example a loose connector or a tank of bad fuel. The underlying cause usually remains, so the code tends to return. Clear it once; if it comes back, diagnose rather than erase it repeatedly.

How much does it cost to fix P2486?

Control module repair — $300–$1,000; Replace the faulty sensor or actuator — $150–$500; Repair wiring or connectors — $80–$250. Exact cost depends on the root cause, your vehicle and local labor rates — a proper diagnosis is the cheapest first step.

What does OBD2 code P2486 mean?

OBD2 code P2486 flags a problem with the sensor and actuator circuits (exhaust gas temperature sensor circuit low bank 2 sensor 5). The car is usually drivable while you plan the repair. Common culprits: corroded, loose or damaged connector, blown fuse feeding the circuit, poor ground connection.

What is the most common cause of P2486?

The most common causes are: corroded, loose or damaged connector, blown fuse feeding the circuit, poor ground connection.

What does P2486 mean?

Behind P2486 is a specific failure in the sensor and actuator circuits: exhaust gas temperature sensor circuit low bank 2 sensor 5. The onboard computer stores it in the powertrain (engine/transmission) group after verifying the fault over repeated checks.

In this definition, “Bank 2” is the side of the engine opposite to cylinder 1 and “Sensor 5” is the downstream (after the catalytic converter) sensor. Mixing up banks and sensor positions is the most common DIY mistake with this code — verify the physical location before replacing anything.

The module monitors this system continuously while driving. When readings fall outside the expected range for a defined number of drive cycles, it stores P2486 and switches on the warning light. Freeze frame data saved with the code shows the exact conditions — rpm, load, temperature, speed — at the moment the fault was detected, which is the best starting point for diagnosis.

Common symptoms of P2486

  • Check Engine Light on
  • the affected system operates intermittently or not at all
  • possible limp mode depending on the affected component
  • increased fuel consumption in some cases

What causes P2486?

  • control module driver fault
  • blown fuse feeding the circuit
  • poor ground connection
  • faulty sensor or actuator of the affected circuit

How to diagnose P2486

  1. Connect an OBD2 scanner, confirm P2486 is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
  2. Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many P0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
  3. Visually inspect the wiring harness and connectors related to the exhaust gas temperature sensor circuit low bank 2 sensor 5 for damage, corrosion, chafing or poor contact.
  4. Measure reference voltage, ground and signal continuity at the component connector.
  5. Wiggle-test the harness while watching the signal in live data — dropouts reveal broken wires.
  6. Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P2486 does not return.

How to fix P2486

Start with the cheapest and most common causes before replacing expensive parts:

  • Control module repair — $300–$1,000
  • Replace the faulty sensor or actuator — $150–$500
  • Repair wiring or connectors — $80–$250

How much does it cost to fix P2486?

Repair cost depends on which component actually failed. Typical scenarios for P2486 (parts and labor, USD, independent shop rates):

  • Control module repair: $300–$1,000
  • Replace the faulty sensor or actuator: $150–$500
  • Repair wiring or connectors: $80–$250

Overall, fixing P2486 usually costs between $80 and $1,000. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.

Can you drive with P2486?

In most cases the car remains drivable, possibly with reduced performance or a disabled auxiliary system. If symptoms include stalling, no-start or brake/steering warnings, treat it as urgent.

Related OBD2 codes