Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with a part of the car that helps reduce pollution. It's like a switch that isn't working right, and it's important because it helps the car run cleaner.
The EGR (Exhaust Gas Recirculation) cooler bypass control circuit is responsible for diverting exhaust gases away from the cooler when necessary. This code indicates that the circuit is reading a low voltage, suggesting an issue with the electrical connection or the component itself.
The P245C code is triggered when the Engine Control Module (ECM) detects a low voltage in the EGR cooler bypass control circuit for Bank 1. This could be due to a faulty bypass valve, wiring issues, or a malfunctioning ECM. The EGR system is crucial for reducing NOx emissions by recirculating a portion of the exhaust gases back into the engine cylinders.
• Check Engine Light on
• Reduced engine performance
• Increased emissions
• Faulty EGR cooler bypass valve
• Damaged wiring or connectors
• Malfunctioning 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.
• Test the EGR cooler bypass valve for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the EGR cooler bypass valve if faulty.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Ford F-250
• Chevrolet Silverado
• Ram 1500
• Regular maintenance of the EGR system
• Timely replacement of faulty components
• Regular diagnostic checks
Sensor Issue
• Have the vehicle inspected by a professional mechanic.
• Avoid heavy acceleration until the issue is resolved.
Check with the vehicle manufacturer for specific warranty coverage on emissions-related components.
This code has been reported in vehicles with high mileage or those with previous EGR system issues.
Moderate – While the vehicle can still be driven, it may not pass emissions tests and could experience reduced performance.
Driving with a malfunctioning EGR system may result in increased emissions, which could be illegal in some regions.
• Engine at operating temperature
• Vehicle running at idle
The EGR cooler bypass valve is typically located near the engine's exhaust manifold.
Q: Can I drive with a P245C code?
A: While you can drive with this code, it's not recommended as it may lead to increased emissions and reduced engine performance.
Q: How can I prevent this code from appearing?
A: Regular maintenance and timely repairs of the EGR system can help prevent this issue.
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