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 the part of the car that helps control how air gets into the engine on one side of the engine. It's like a switch isn't working properly to let the engine breathe right.
The VVL (Variable Valve Lift) system helps control the amount of air entering the engine by adjusting the lift of the valves. When the control circuit is low, it means the electrical signal isn't strong enough to operate the system correctly.
P1052 indicates that the engine control module (ECM) has detected a low voltage condition in the VVL control circuit for bank 2. This could be due to a fault in the wiring, a poor connection, or a malfunctioning component in the VVL system.
• Check Engine Light on
• Reduced engine performance
• Poor fuel economy
• Faulty VVL actuator
• Damaged wiring or connectors
• Faulty ECM
VVL: Variable Valve Lift
ECM: Engine Control Module
• Use an OBD-II scanner to confirm the code.
• Inspect wiring and connectors for damage.
• Test the VVL actuator for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the faulty VVL actuator.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $800
Moderate
• Nissan Altima
• Infiniti G35
• Nissan Maxima
• Regular maintenance checks
• Ensure proper electrical connections
• Use quality parts for replacements
Sensor Issue
• Do not ignore the Check Engine Light.
• Get the vehicle inspected by a professional.
• Avoid driving aggressively until the issue is fixed.
Check with the vehicle manufacturer for warranty coverage on emissions-related components.
This code has been associated with vehicles using advanced VVL systems, particularly in models from the early 2000s.
Moderate – It should be addressed soon to avoid potential engine performance issues.
Ignoring this code may lead to increased emissions and reduced fuel efficiency, which can be against environmental regulations.
• Engine at operating temperature
• Vehicle at idle
The VVL actuator is typically located on the cylinder head of the engine, on bank 2.
Q: Can I drive with a P1052 code?
A: It's possible to drive short distances, but it's best to fix the issue soon to prevent further damage.
Q: How can I reset the Check Engine Light?
A: After repairs, use an OBD-II scanner to clear the code and reset the light.
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