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 there's a problem with a part in your car that helps control the exhaust. It's like a little door that helps manage the gases coming out of the engine, and it's not working right.
The P0475 code is triggered when the engine control module (ECM) detects a malfunction in the exhaust pressure control valve circuit.
The exhaust pressure control valve is responsible for regulating the exhaust gas pressure to optimize engine performance and emissions. When the ECM detects a problem with the valve or its circuit, it sets the P0475 code. This could be due to electrical issues or mechanical failure of the valve.
• Check Engine Light is on
• Poor engine performance
• Increased emissions
• Faulty exhaust pressure control valve
• Wiring issues or poor electrical connections
• Faulty ECM
ECM: Engine Control Module
OBD-II: On-Board Diagnostics II
• Scan the vehicle for codes and freeze frame data.
• Inspect the exhaust pressure control valve and its wiring.
• Test the valve for proper operation.
• Replace the exhaust pressure control valve.
• Repair or replace damaged wiring.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Ford F-Series
• Chevrolet Silverado
• Dodge Ram
• Regular maintenance checks
• Ensure proper wiring connections
• Use quality fuel
Engine Performance
• Get the vehicle checked by a professional as soon as possible.
• Avoid driving extensively until the issue is resolved.
Repairs may be covered under the vehicle's emissions warranty.
This code has been known to appear in diesel engines where exhaust pressure regulation is critical for performance and emissions.
Moderate – It may not cause immediate damage, but should be addressed to avoid performance issues.
Ignoring this code can lead to increased emissions, which may not comply with local regulations.
• Engine running
• Vehicle at operating temperature
The exhaust pressure control valve is typically located near the exhaust manifold or turbocharger.
Q: Can I drive with a P0475 code?
A: It's possible to drive, but it's not recommended as it can affect performance and emissions.
Q: How can I reset the P0475 code?
A: The code can be reset with an OBD-II scanner, but it's important to fix the underlying issue first.
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