P245A Fault Code

Exhaust Gas Recirculation Cooler Bypass Control Circuit/Open

• What does that mean?
• Symptoms
• Causes
• Solutions

The P245A fault code indicates an issue with the Exhaust Gas Recirculation (EGR) cooler bypass control circuit. This may occur when there is an open circuit or a fault within the system that manages the EGR cooler operation. The EGR system helps reduce emissions by recirculating a portion of the exhaust gas back into the engine's intake, promoting more complete combustion and lowering nitrogen oxides (NOx) emissions.

What are the symptoms of the P245A code?

Common symptoms associated with the P245A fault code are:

• Check Engine Light illuminated on the dashboard.
• Increased emissions output, possibly leading to failed emissions tests.
• Poor engine performance, including issues with acceleration or overall power.
• Higher fuel consumption due to improper combustion efficiency.

What causes the P245A code?

Possible causes of the P245A code include:

• Damaged or disconnected wiring in the EGR cooler bypass control circuit.
• Faulty EGR cooler bypass control valve.
• Poor electrical connections or corroded terminals in the circuit.
• Malfunctioning Engine Control Module (ECM) that fails to manage the EGR system correctly.

How to fix P245A?

To resolve the P245A code, the following steps may be taken:

• Inspect the EGR cooler bypass control circuit for damaged wires or poor connections and repair as necessary.
• Test the EGR cooler bypass control valve for proper operation and replace it if found faulty.
• Clear the fault codes using an OBD-II scanner and test drive the vehicle to see if the code returns.
• If the issue persists, further diagnostics may be needed to check the ECM for faults.