Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This means there is a problem with the part of the car that helps open and close the exhaust valve for cylinder number 11. It's like a switch that isn't working right, so the car can't control the valve properly.
The engine control module (ECM) has detected a low voltage or resistance issue in the circuit that controls the exhaust valve for cylinder 11.
The P3487 code is triggered when the ECM detects a low voltage condition in the exhaust valve control circuit for cylinder 11. This could indicate a problem with the wiring, the valve actuator, or the ECM itself. The exhaust valve control system is responsible for managing the opening and closing of the exhaust valves to optimize engine performance and emissions.
• Check Engine Light is on
• Reduced engine performance
• Increased emissions
• Faulty exhaust valve actuator
• Damaged or corroded wiring/connectors
• Faulty engine control module (ECM)
ECM: Engine Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the exhaust valve actuator for proper operation.
• Repair or replace damaged wiring/connectors.
• Replace the faulty exhaust valve actuator.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $800
Moderate
• Dodge Ram
• Chrysler 300
• Jeep Grand Cherokee
• Regularly inspect and maintain vehicle wiring.
• Ensure proper engine maintenance and oil changes.
• Avoid harsh driving conditions that can stress engine components.
Engine Performance
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional if unsure.
• Regular maintenance can prevent such issues.
Check with the vehicle manufacturer for warranty coverage on engine components.
This code is commonly associated with vehicles that have variable valve timing and cylinder deactivation systems.
Moderate – It should be addressed soon to prevent further engine performance issues.
Ignoring this code can lead to increased emissions, which may not comply with local environmental regulations.
• Engine at operating temperature
• Vehicle in a safe location for testing
The exhaust valve actuator for cylinder 11 is typically located on the cylinder head near the exhaust manifold.
Q: Can I drive with a P3487 code?
A: It's not recommended to drive for extended periods with this code, as it can affect engine performance and emissions.
Q: How do I clear a P3487 code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue is resolved, the code should not return.
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