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 engine that helps control how air gets in. It's like a door that isn't opening or closing properly.
The P25CD code indicates an issue with the electrical circuit that controls the intake camshaft actuator on bank 2. This actuator is responsible for adjusting the timing of the intake valves.
The intake camshaft actuator is a component that adjusts the position of the camshaft to optimize engine performance. The park lock control circuit ensures that the actuator is in the correct position when the engine is off. An open circuit or fault in this system can lead to improper timing and engine performance issues.
• Check Engine Light illuminated
• Reduced engine performance
• Rough idling or stalling
• Faulty intake camshaft actuator
• Open or shorted wiring in the actuator circuit
• Faulty engine control module (ECM)
Camshaft: A shaft in the engine that controls the opening and closing of the intake and exhaust 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 intake camshaft actuator for proper operation.
• Replace or repair damaged wiring or connectors.
• Replace the intake camshaft actuator if faulty.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $600
Moderate
• Chevrolet Silverado
• GMC Sierra
• Cadillac Escalade
• Regular maintenance and inspection of engine components.
• Ensure proper oil levels and quality.
• Address Check Engine Light warnings promptly.
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional mechanic.
• Avoid driving the vehicle aggressively until repaired.
Check with the vehicle manufacturer for warranty coverage on engine components.
This code has been more common in vehicles with higher mileage and those that have not had regular maintenance.
Moderate – It should be addressed soon to prevent further engine performance issues.
Driving with a malfunctioning camshaft actuator can lead to increased emissions and potential engine damage.
• Engine at operating temperature
• Vehicle stationary with engine idling
The intake camshaft actuator is located on the engine's cylinder head, on bank 2.
Q: Can I drive with a P25CD code?
A: It's not recommended to drive for long periods with this code, as it can lead to engine performance issues.
Q: How can I reset the Check Engine Light?
A: After repairs, the light can be reset using an OBD-II scanner.
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