Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer is having trouble reading a sensor that helps control the flow of exhaust gases to keep the engine running smoothly.
The P2499 code indicates a problem with the sensor that monitors the position of the EGR cooler bypass valve on the second bank of the engine. This sensor is reporting a lower than expected voltage, suggesting a possible issue with the sensor or its circuit.
The Exhaust Gas Recirculation (EGR) system helps reduce emissions by recirculating a portion of the engine's exhaust back to the engine cylinders. The EGR cooler bypass position sensor monitors the position of the bypass valve, which controls the flow of exhaust gases through the EGR cooler. A 'circuit low' condition means the sensor is reporting a voltage lower than the expected range, which could be due to a faulty sensor, wiring issues, or a problem with the engine control module (ECM).
• Check Engine Light is on
• Poor engine performance
• Increased emissions
• Faulty EGR cooler bypass position sensor
• Damaged or corroded wiring or connectors
• Faulty Engine Control Module (ECM)
EGR: Exhaust Gas Recirculation
ECM: Engine Control Module
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the EGR cooler bypass position sensor for proper operation.
• Replace the EGR cooler bypass position sensor if faulty.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Ford F-150
• Chevrolet Silverado
• Dodge Ram 1500
• Regular maintenance and inspection of the EGR system.
• Ensure proper electrical connections and wiring integrity.
• Use quality fuel to reduce carbon buildup.
Sensor Issue
• Have the vehicle inspected by a professional if the Check Engine Light is on.
• Avoid prolonged driving with the issue to prevent further damage.
Check with your vehicle manufacturer for specific warranty coverage related to emissions components.
The P2499 code has been reported in various models, often related to sensor or wiring issues in the EGR system.
Moderate – It's important to address this issue to maintain engine performance and emissions compliance.
Ignoring emissions-related issues can lead to increased pollution and may violate local emissions laws.
• Engine at operating temperature
• Vehicle in a safe, stationary position
The EGR cooler bypass position sensor is typically located near the EGR cooler on the engine's exhaust side.
Q: Can I drive my car with a P2499 code?
A: While you may be able to drive, it's not recommended as it can lead to increased emissions and engine performance issues.
Q: How do I clear a P2499 code?
A: After fixing the issue, you can clear the code with an OBD-II scanner, but it may return if the problem isn't resolved.
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