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 is a problem with the system that turns off the engine's cylinder number 5 when it's not needed. It's like a switch that isn't working properly, so the car can't save fuel like it should.
The engine control module (ECM) monitors the intake valve control circuit for cylinder 5. If it detects a low voltage condition, it triggers the P3435 code.
P3435 indicates a low voltage condition in the intake valve control circuit for cylinder 5. This is part of the cylinder deactivation system, which is designed to improve fuel efficiency by deactivating certain cylinders when full engine power is not needed.
• Check Engine Light illuminated
• Reduced engine performance
• Poor fuel economy
• Faulty intake valve control solenoid
• Wiring issues such as short or open circuits
• Faulty ECM
ECM: Engine Control Module
Solenoid: A coil of wire that acts as a magnet when carrying electric current, used to control a mechanism.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the intake valve control solenoid for proper operation.
• Replace the intake valve control solenoid if faulty.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$150 - $500
Moderate
• Chevrolet Silverado
• GMC Sierra
• Cadillac Escalade
• Regular maintenance checks
• Ensure proper oil levels
• Avoid aggressive driving
Engine Performance
• Have the vehicle inspected by a professional mechanic.
• Avoid heavy loads or towing until the issue is resolved.
Repairs may be covered under the vehicle's powertrain warranty if applicable.
Cylinder deactivation codes have become more common with the introduction of fuel-saving technologies in modern engines.
Moderate – It should be addressed soon to avoid potential engine damage.
Ignoring this code can lead to increased emissions and potential engine damage.
• Engine at operating temperature
• Vehicle in idle or low load conditions
The intake valve control solenoid for cylinder 5 is typically located on the engine block near the cylinder head.
Q: Can I drive with a P3435 code?
A: It's possible to drive short distances, but it's recommended to fix the issue soon to avoid further damage.
Q: Does this code affect fuel economy?
A: Yes, it can lead to reduced fuel efficiency as the cylinder deactivation system is not functioning properly.
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