P2460 – EGT Sensor Circuit (Bank 1 Sensor 3)

System: Powertrain | Standard: ISO/SAE Controlled | Fault type: Circuit | Location: Bank 1, Sensor 3

Definition source: SAE J2012/J2012DA (industry standard)

DTC P2460 indicates the powertrain control module has detected an electrical circuit fault associated with the Exhaust Gas Temperature (EGT) sensor circuit identified as Bank 1 Sensor 3. While the code points to a circuit-related problem, the exact enable conditions, monitoring strategy, and what the module considers a fault can vary by vehicle and calibration. Use factory service information to confirm sensor location, connector pinout, wiring routing, and the test procedure for this specific circuit before replacing parts. Treat the code as a circuit diagnosis task until testing proves otherwise.

What Does P2460 Mean?

P2460 means EGT Sensor Circuit (Bank 1 Sensor 3). In practical terms, the control module has identified an electrical fault in the circuit associated with the EGT sensor designated Bank 1 Sensor 3, which may involve the sensor itself, its wiring, connectors, power/ground, or the signal path the module uses to interpret exhaust temperature. The SAE J2012 standard defines how DTCs are organized and described, but the exact sensor placement and circuit design for “Bank 1 Sensor 3” varies by vehicle and must be verified using the correct service information.

Quick Reference

• System: Powertrain
• Official meaning: EGT Sensor Circuit (Bank 1 Sensor 3)
• Standard: ISO/SAE controlled
• Fault type: Circuit
• Severity: The MIL may illuminate, and the vehicle may limit certain powertrain strategies that rely on exhaust temperature feedback, potentially affecting drivability under load.

Symptoms

• MIL/Check Engine: Malfunction indicator lamp illuminated and P2460 stored as current or pending.
• Reduced performance: Noticeable power limitation or less responsive acceleration, especially during higher load conditions.
• Regeneration/aftertreatment changes: Changes in exhaust-related control behavior (for systems that use EGT input), such as inhibited or altered temperature-based strategies.
• Abnormal exhaust-related readings: Scan tool data may show an implausible, fixed, or missing EGT value for the Bank 1 Sensor 3 channel.
• Intermittent concern: Symptoms may appear only with vibration, heat soak, or after recent service near the sensor harness.
• Fail-safe operation: The control module may substitute a default value, which can change engine feel and emissions control behavior.

Common Causes

• Connector issue at EGT sensor: Loose fit, corrosion, moisture intrusion, pushed-out terminals, or damaged connector locking tabs affecting the signal circuit.
• Harness damage: Chafed, melted, pinched, or brittle wiring near hot exhaust components causing opens or shorts in the EGT sensor circuit.
• Open circuit: Broken conductor inside insulation, failed splice, or intermittent open that appears with engine movement or heat soak.
• Short to ground or short to power: Insulation damage allowing the EGT signal, reference, or supply circuits (varies by vehicle) to contact ground or a power feed.
• Poor ground path: High resistance in ground circuits (where used) due to corrosion, loose ground fasteners, or damaged ground wiring leading to unreliable sensor readings.
• EGT sensor internal fault: Sensor element or internal circuitry failure creating an implausible or non-responsive circuit signal.
• Control module/driver concern: Fault in the module input circuit, internal reference, or pull-up/pull-down circuitry (varies by vehicle) causing incorrect circuit interpretation.
• Incorrect parts or installation: Wrong sensor type, mismatched connector/pinning, damaged wiring during installation, or routing too close to heat sources after service.

Diagnosis Steps

Useful tools include a scan tool capable of live data logging and freeze-frame review, a digital multimeter, and back-probing leads. A wiring diagram and connector pinout from the correct service information are essential because EGT sensor circuit design varies by vehicle. If available, use an oscilloscope for signal integrity checks and perform heat-safe inspection tools for areas near exhaust components.

1. Confirm the DTC and capture data: Verify P2460 is present. Record freeze-frame data, note when it sets (cold start, steady cruise, high load), and check for other powertrain DTCs that may affect exhaust temperature calculations or reference circuits.
2. Identify the correct sensor location: Using service information, confirm the physical location of Bank 1 Sensor 3. Do not assume placement; “sensor 3” location can vary by exhaust layout.
3. Perform a focused visual inspection: Inspect the sensor body, harness routing, and nearby heat shielding. Look for melted insulation, abrasion, crushed sections, contact with sharp edges, or evidence of recent repairs or exhaust work.
4. Check the connector condition: With ignition off, disconnect the EGT sensor connector. Inspect for corrosion, moisture, damaged seals, bent pins, spread terminals, or terminals pushed back in the housing. Correct any pin-fit issues before deeper testing.
5. Wiggle test for intermittents: Reconnect as needed and run the engine while monitoring the EGT-related live data and DTC status. Wiggle the harness and connector gently along the routing path. If readings drop out or the fault triggers, isolate the exact segment causing the change.
6. Verify circuit integrity (continuity and shorts): With the connector disconnected and the module side isolated as directed by service information, test each circuit between the sensor connector and the module connector for continuity. Then test each circuit for short to ground and short to power. Any unexpected continuity indicates harness damage or a wiring fault.
7. Check power, ground, and reference behavior: Depending on design, the EGT sensor may have a supply/reference and ground, or a different circuit arrangement. With ignition on (engine off unless service info specifies otherwise), verify the presence of the correct feed/reference and a solid ground where applicable. Compare to service information rather than using generic values.
8. Voltage-drop test loaded circuits: If the circuit uses a ground or shared reference, perform voltage-drop testing under operating conditions (or with an appropriate load) to identify high resistance at splices, connectors, or ground points. High resistance may appear only when current flows.
9. Evaluate live data plausibility (without assuming failure): Compare the Bank 1 Sensor 3 EGT signal behavior to other available temperature-related PIDs (other EGT sensors if equipped). Look for a signal that is fixed, erratic, or unresponsive to operating changes. Do not conclude the sensor is bad until circuit checks pass.
10. Check for heat-related or vibration-related faults: If the fault occurs after warm-up, reproduce the condition safely and re-check harness sections near exhaust heat sources. Heat can expose marginal insulation or poor terminal tension.
11. Substitute only after proving wiring: If wiring, connector condition, and feed/ground checks are confirmed good, follow service information to test the sensor per specified procedure. Replace the EGT sensor only when test results indicate an internal fault or the circuit fails only with the sensor connected.
12. Clear codes and validate the repair: Clear DTCs, perform a road test under conditions similar to the freeze frame, and review readiness/monitors as applicable. Re-scan to ensure P2460 does not return and that the EGT signal remains stable during logging.

Professional tip: When a circuit DTC is intermittent, prioritize connector pin tension, harness strain relief, and heat damage near the exhaust. A repair that “looks fine” can still fail under vibration; use live-data logging during a controlled wiggle test and confirm with voltage-drop testing to catch high-resistance terminals and splices.

Possible Fixes & Repair Costs

Repair costs for P2460 vary widely by vehicle because the root cause can be in the sensor, wiring, connectors, or control module logic. Total cost depends on diagnostic time, access to the sensor location, required parts, and whether harness repairs are needed.

• Repair connector issues: Clean corrosion, dry moisture intrusion, correct terminal tension, and ensure full connector seating/lock engagement at the EGT sensor and intermediate connectors.
• Repair wiring faults: Restore damaged insulation, repair opens/shorts, and secure the harness away from heat and abrasion; replace sections of wiring as needed.
• Restore power/ground/reference integrity: Repair shared feeds/grounds and perform verified voltage-drop corrections on the EGT sensor circuit paths (as applicable to the design).
• Replace the EGT sensor (Bank 1 Sensor 3): Replace only after tests confirm the sensor is the fault and the circuit is intact.
• Repair exhaust-related mounting issues: If the sensor bung, mounting, or strain relief is causing repeated wiring stress, correct the mounting/support to prevent recurrence.
• Control module actions: If service information calls for it and circuit integrity is proven, perform module software update, pin fit repair at module connector(s), or module replacement with required setup.

Can I Still Drive With P2460?

You may be able to drive short distances if the vehicle feels normal, but P2460 indicates an EGT sensor circuit fault that can trigger a warning lamp and may cause reduced power or protective strategies depending on vehicle calibration. If you notice reduced power, abnormal shifting, smoke/odor, or any sign of overheating, stop driving and diagnose promptly; do not drive if the vehicle enters limp mode, stalls, or shows other safety-related warnings.

What Happens If You Ignore P2460?

Ignoring P2460 can lead to ongoing warning lights, failed emissions inspection readiness, and inconsistent engine/exhaust temperature management because the control system may substitute a default value or limit performance. Over time, continued operation with incorrect exhaust temperature feedback can contribute to drivability complaints and may increase stress on exhaust aftertreatment components, depending on vehicle strategy.

Last updated: February 19, 2026

Vehicles Commonly Affected by P2460

• Vehicles with exhaust gas temperature monitoring: Platforms that use an EGT sensor downstream in the exhaust system.
• Vehicles with multiple EGT sensors: Configurations that label sensors by bank and position (e.g., “Sensor 3” on Bank 1).
• Turbocharged applications: Systems where exhaust temperature feedback is used for protection or control strategies (varies by vehicle).
• Vehicles with exhaust aftertreatment: Applications that use exhaust temperature inputs for emissions and thermal management (varies by vehicle).
• High-heat exhaust routing: Layouts where harnesses and connectors are exposed to elevated temperatures near the exhaust.
• Underbody sensor locations: Vehicles where the sensor and wiring are more exposed to moisture, road debris, and corrosion.
• Higher-mileage vehicles: Platforms where heat cycling and vibration can degrade insulation, terminals, and strain relief over time.

Always confirm bank and sensor numbering for your specific vehicle using service information before testing or replacing any components.