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Code P1059

Quick reference

P1059 at a glance

Plain-language meaning
The car's computer has detected that the power going to a part of the engine that helps control how the engine breathes is too low. It's like trying to run a toy with weak batteries.
Urgency
Moderate – While the car may still run, ignoring this issue can lead to reduced performance and increased fuel consumption.
Difficulty
Moderate
System
Engine Performance
Tools mentioned
OBD-II scanner, Multimeter, Basic hand tools (screwdrivers, pliers)

This summary uses the existing diagnostic information shown in full below.

Laymans terms

The car's computer has detected that the power going to a part of the engine that helps control how the engine breathes is too low. It's like trying to run a toy with weak batteries.

Explanation

This code indicates that the voltage supplied to the Variable Valve Lift (VVL) control motor on bank 2 is lower than expected.

Technical description

The P1059 code is triggered when the Engine Control Module (ECM) detects a low voltage condition in the VVL control motor circuit for bank 2. This can affect the engine's ability to adjust valve lift, which is crucial for optimal performance and efficiency.

Symptoms

• Check Engine Light is on

• Reduced engine performance

• Poor fuel economy

• Engine may run rough or misfire

Common Causes

• Faulty VVL control motor

• Poor electrical connection in the VVL control circuit

• Blown fuse or faulty relay

• Damaged wiring or connectors

• Faulty ECM

Glossary

VVL: Variable Valve Lift, a system that adjusts the lift of the engine's valves for better performance and efficiency.

ECM: Engine Control Module, the computer that controls engine functions.

Diagnosis steps

• Use an OBD-II scanner to confirm the code.

• Inspect the VVL control motor and its electrical connections.

• Check the fuse and relay associated with the VVL system.

• Test the wiring for continuity and shorts.

• Inspect the ECM for faults.

Repair procedures

• Replace or repair the VVL control motor if faulty.

• Ensure all electrical connections are secure and clean.

• Replace blown fuses or faulty relays.

• Repair or replace damaged wiring or connectors.

• Reprogram or replace the ECM if necessary.

Tools required

• OBD-II scanner

• Multimeter

• Basic hand tools (screwdrivers, pliers)

Estimated repair cost

$150 - $500

Difficulty level

Moderate

Commonly affected vehicles

• Nissan Altima

• Infiniti G35

• Nissan Maxima

Preventive measures

• Regularly inspect electrical connections for corrosion.

• Keep up with scheduled maintenance.

• Avoid harsh driving conditions that may stress engine components.

Error code type

Engine Performance

User experience recommendations

• Do not ignore the Check Engine Light; get it diagnosed promptly.

• Regular maintenance can prevent such issues.

• Consult a professional mechanic if unsure about DIY repairs.

Warranty information

Check with your vehicle manufacturer; powertrain warranties may cover such issues.

Historical data

This code is commonly associated with Nissan and Infiniti vehicles with VVL systems, particularly in models from the early 2000s.

Urgency level

Moderate – While the car may still run, ignoring this issue can lead to reduced performance and increased fuel consumption.

Testing conditions

• Engine at operating temperature

• Vehicle stationary and in park

Component location

The VVL control motor is typically located on the cylinder head near the camshaft on bank 2.

FAQs

Q: Can I drive with a P1059 code?
A: While the car may still operate, it's best to address the issue to avoid potential engine performance problems.

Q: What happens if I ignore this code?
A: Ignoring the code can lead to decreased engine efficiency, increased fuel consumption, and potential engine damage over time.

Optional diagnostic gear

Tools that may help diagnose P1059

THINKCAR ThinkScan Bidirectional diagnostic tool illustration

High-End · Full-system diagnostics

THINKCAR ThinkScan Bidirectional

A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.

Network faults often require full-system access instead of a generic code reader alone.

View on Amazon
Klein Tools MM325 diagnostic tool illustration

Universal · Digital multimeter

Klein Tools MM325

A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.

Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.

View on Amazon
WORKPRO Wiring Repair Kit diagnostic tool illustration

Universal · Wire connectors and repair kit

WORKPRO Wiring Repair Kit

Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.

Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.

View on Amazon

These are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.

Fitment matters

Commonly referenced parts for P1059

NGK Spark Plugs product illustration

Fitment Required · Vehicle-fitment part

NGK Spark Plugs

Commonly relevant for misfire, ignition-efficiency, and some drivability-related repairs.

Misfire and ignition-related faults commonly involve spark plugs as part of the repair path.

Check the correct plug type, gap, and engine application for your vehicle.

View options on Amazon
Delphi Ignition Coil product illustration

Fitment Required · Vehicle-fitment part

Delphi Ignition Coil

Relevant when the fault points toward ignition-coil performance or cylinder-specific ignition issues.

Some ignition faults involve coil performance or cylinder-specific coil problems.

Match the coil to your engine and confirm the failed component before ordering.

View options on Amazon

These parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.

Source: ezOBD2 diagnostic database
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