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 is a problem with a part of the car engine that helps control the timing of the exhaust camshaft. It's like when a toy car's wheel gets stuck and can't move properly.
The P25D0 code indicates an issue with the electrical circuit that controls the exhaust camshaft actuator's park lock on bank 1 of the engine.
The exhaust camshaft actuator is responsible for adjusting the timing of the exhaust valves for optimal engine performance. The park lock control circuit ensures the actuator is in the correct position when the engine is off. An open circuit means there's a break in the electrical path, preventing proper control.
• Check Engine Light is on
• Poor engine performance
• Increased emissions
• Faulty exhaust camshaft actuator
• Damaged wiring or connectors
• Blown fuse or faulty relay
Camshaft: A shaft in the engine that controls the opening and closing of the valves.
Actuator: A device that moves or controls a mechanism or system.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage.
• Test the actuator and its control circuit for continuity.
• Replace or repair damaged wiring or connectors.
• Replace the faulty exhaust camshaft actuator.
• Check and replace any blown fuses or faulty relays.
• OBD-II scanner
• Multimeter
• Socket set
$150 - $400
Moderate
• Chevrolet Malibu
• GMC Terrain
• Buick Enclave
• Regularly inspect engine wiring for wear.
• Ensure timely maintenance of camshaft components.
• Use high-quality engine oil.
Engine Performance
• Avoid driving long distances until repaired.
• Consult a professional mechanic for diagnosis.
• Monitor for changes in vehicle performance.
Check vehicle warranty for coverage on engine components.
This code is relatively uncommon and may indicate specific issues with newer engine designs focusing on variable valve timing.
Moderate – Addressing this issue promptly can prevent further engine damage.
Driving with this code may lead to increased emissions and potential engine damage.
• Engine at operating temperature
• Vehicle in park with engine off
The exhaust camshaft actuator is typically located on the cylinder head, near the exhaust camshaft.
Q: Can I drive with a P25D0 code?
A: It's not recommended to drive with this code as it may lead to engine damage.
Q: What happens if I ignore this code?
A: Ignoring this code can result in poor engine performance and increased emissions.
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