Infiniti QX56 2011-2013 Electrical Specifications
Infiniti QX56 2011-2013

Infiniti QX56 2011-2013 Electrical Specifications

Explore the electrical specifications for the 2011-2013 Infiniti QX56, including battery, alternator, starter motor, and wiring details. Ideal for maintenance, repairs, and upgrades.

Updated

Overview Specifications

This document provides detailed electrical specifications for the 2011-2013 Infiniti QX56. It includes information on the vehicle's electrical system, battery, charging system, and other critical components. Use this guide to understand the technical aspects of the QX56's electrical architecture, troubleshoot issues, or perform maintenance. The document is organized into sections for easy navigation and includes a quick reference for key specifications.

How to Use

Use the search function to find specific terms or components within the document. Enter keywords related to the electrical system, such as 'battery' or 'alternator,' to quickly locate relevant information.

Navigate through the document by scrolling through the sections or using the table of contents. Each section is clearly labeled and contains subsections with detailed technical points for easy reference.

Key Specifications

Battery Voltage

12V

Alternator Output

150A

Battery Capacity

80Ah

Cold Cranking Amps

700A

Headlight Type

HID

Available Specifications

Battery System

The battery system in the 2011-2013 Infiniti QX56 is designed to provide reliable power for starting the engine and supporting electrical components. This section covers the battery specifications, maintenance tips, and troubleshooting guidelines.

Battery Specifications
  • Type: Maintenance-free lead-acid battery
  • Voltage: 12V
  • Capacity: 80Ah (Ampere-hours)
  • Cold Cranking Amps (CCA): 700A
  • Terminal Type: Top-post
  • Location: Engine compartment
Battery Maintenance
  • Check battery terminals for corrosion regularly
  • Ensure connections are tight and secure
  • Inspect battery case for cracks or damage
  • Test battery voltage periodically
  • Replace battery every 3-5 years or as needed

Charging System

The charging system in the QX56 ensures the battery remains charged while the vehicle is running. This section includes details on the alternator, voltage regulator, and related components.

Alternator Specifications
  • Output: 150A
  • Voltage: 12V
  • Type: Belt-driven
  • Mounting Location: Front of engine
  • Cooling: Air-cooled
Charging System Maintenance
  • Inspect alternator belt for wear and tension
  • Check alternator output voltage regularly
  • Look for signs of electrical shorts or overloads
  • Clean alternator connections
  • Replace alternator as needed based on performance

Electrical Components

This section covers the various electrical components in the QX56, including lighting, sensors, and control modules. It provides details on their function and maintenance.

Lighting System
  • Headlights: HID (High-Intensity Discharge)
  • Taillights: LED (Light Emitting Diode)
  • Fog Lights: Halogen
  • Interior Lighting: LED
  • Turn Signals: Incandescent
Sensors and Modules
  • ECU (Engine Control Unit): Manages engine performance
  • ABS Module: Controls anti-lock braking system
  • Airbag Sensor: Monitors collision impact
  • TPMS (Tire Pressure Monitoring System): Tracks tire pressure
  • Climate Control Module: Regulates cabin temperature

Component Specifications

Overview

System Voltage
12V DC
Battery Type
Maintenance-free lead-acid
Alternator Output
150 amps
Wiring Harness
Fully insulated multi-circuit
Fuse Box Location
Driver side engine compartment

Dimensions

Battery Length
10.8 inches (274 mm)
Battery Width
6.8 inches (173 mm)
Battery Height
7.5 inches (190 mm)
Alternator Diameter
5.9 inches (150 mm)
Alternator Length
9.1 inches (231 mm)
Fuse Box Length
8.3 inches (211 mm)
Fuse Box Width
4.7 inches (119 mm)

Materials

Battery Case
Polypropylene
Battery Terminals
Lead alloy
Wiring Insulation
PVC
Alternator Housing
Aluminum alloy
Fuse Box
Heat-resistant plastic

Features

Lighting System
  • Xenon headlights
  • LED daytime running lights
  • Adaptive front lighting system
  • Automatic headlight leveling
Power Distribution
  • Intelligent power distribution module
  • Smart alternator control
  • Voltage monitoring system
  • Overload protection
Charging System
  • Regenerative braking system
  • Battery management system
  • Low battery warning system
  • Remote battery charging terminal
Safety Electrical
  • Short circuit protection
  • Overcurrent protection
  • Reverse polarity protection
  • Fused main power lines
Convenience Features
  • Automatic dimming rearview mirror
  • Power windows with auto-up/down
  • Heated side mirrors
  • Rain-sensing windshield wipers

Safety Features

Crash Safety
  • Automatic battery disconnect
  • Crash sensor-controlled power cut
  • Emergency flashers activation
Overload Protection
  • Thermal circuit breakers
  • Fusible links
  • Electronic current limiters
Fire Prevention
  • Firewall wiring insulation
  • Heat-resistant cable coatings
  • Flame retardant wire looms

Comfort Features

Climate Control
  • Automatic dual-zone climate control
  • Rear seat climate control
  • Heated steering wheel
Seating
  • Power adjustable front seats
  • Heated and cooled front seats
  • Power folding rear seats
Audio System
  • Bose premium audio system
  • AM/FM/CD/DVD player
  • MP3/WMA playback capability
Navigation
  • Hard-drive navigation system
  • Voice recognition
  • Real-time traffic updates

Accessories

Exterior Lighting
  • Fog lights
  • Puddle lights
  • LED tail lights
Power Systems
  • Power liftgate
  • Power sunroof
  • Power folding mirrors
Charging Ports
  • 12V power outlet
  • USB charging port
  • Rear seat entertainment power outlet

Maintenance

intervals
  • Battery inspection every 6 months
  • Alternator belt tension check every 15,000 miles
  • Fuse box inspection annually
  • Wiring harness inspection every 30,000 miles
  • Ground connections check every 20,000 miles
Notes
  • Use only manufacturer-recommended battery replacement
  • Alternator should be tested if voltage drops below 13.2V
  • Replace fuses with identical amperage rating

Warranty

Battery Warranty
Months: 36
Miles: 36000
Coverage: Free replacement
Alternator Warranty
Months: 24
Miles: 24000
Coverage: Parts and labor
Wiring Warranty
Months: 60
Miles: 60000
Coverage: Manufacturer defects
Lighting Warranty
Months: 12
Miles: 12000
Coverage: Bulb replacement

Production Details

Manufacturer
Infiniti/Nissan
Manufacturing Process
  • Automated wiring harness assembly
  • Robotic battery testing
  • Computerized alternator calibration
Quality Control
Voltage Testing: 100% alternator output verification
insulation Testing: High-voltage dielectric testing
Circuit Testing: Full system continuity check
Sustainability
  • Recyclable battery components
  • RoHS-compliant wiring materials
  • Energy-efficient manufacturing processes
Production Metrics
Daily Output: 500 units
Defect Rate: <0.1%
Testing Time: 45 minutes per vehicle

Service Information for Electrical System Service

Maintenance and service requirements specific to the electrical system

7500
6
  • Battery terminal cleaning
  • Alternator belt inspection
  • Fuse box visual check
  • Ground connection verification
  • Lighting system functionality test

Perform voltage test on battery and alternator

30000
24
  • Complete wiring harness inspection
  • Alternator output test
  • Battery load test
  • Charging system diagnostics
  • Power distribution module check

Use specialized diagnostic equipment for system testing

60000
60
  • Full electrical system diagnostics
  • Battery replacement if needed
  • Alternator brush inspection
  • Wiring harness replacement if damaged
  • Ground strap replacement

Consider upgrading to high-capacity battery if accessories added

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What is the electrical system voltage for the 2011-2013 Infiniti QX56?

The 2011-2013 Infiniti QX56 operates on a 12-volt electrical system. This system includes a 12-volt battery, alternator, and various electrical components such as lights, infotainment, and power accessories. The vehicle is compatible with standard 12-volt automotive accessories and chargers. Always ensure any aftermarket components are rated for 12 volts to avoid damage to the electrical system.

Q2

What are the maintenance requirements for the electrical system?

Regular maintenance of the QX56's electrical system includes checking the battery terminals for corrosion, ensuring the alternator is functioning properly, and inspecting wiring for wear or damage. The battery should be tested annually, and connections should be cleaned and tightened as needed. Replace the battery every 3-5 years or as recommended. Fuses and relays should also be checked periodically to ensure proper operation.

Q3

How do I replace the battery in a 2011-2013 Infiniti QX56?

To replace the battery, first, turn off the engine and remove the key. Locate the battery in the engine bay. Disconnect the negative terminal first, followed by the positive terminal. Remove the battery hold-down clamp and carefully lift out the old battery. Install the new battery, secure it with the clamp, and reconnect the positive terminal first, then the negative terminal. Ensure all connections are tight and corrosion-free.

Q4

What should I do if my QX56's electrical system is malfunctioning?

If the electrical system is malfunctioning, start by checking the battery voltage with a multimeter. A reading below 12 volts indicates a weak battery. Inspect fuses and relays for any blown components. Test the alternator output to ensure it is charging the battery properly. If issues persist, consult the vehicle’s diagnostic system for error codes or seek professional assistance to identify and resolve the problem.

Q5

How can I optimize the electrical system's performance?

To optimize performance, keep the battery terminals clean and free of corrosion. Use a battery tender if the vehicle is stored for long periods. Avoid overloading the electrical system with excessive aftermarket accessories. Regularly check the alternator’s output and replace worn components promptly. Upgrading to a high-performance battery or alternator can also improve reliability, especially in extreme conditions.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

2011-2013 Infiniti QX56 Service Manual

Coming Soon

This manual provides detailed instructions for servicing and repairing the electrical system and other components of the QX56.

Infiniti Technical Service Bulletin for Electrical Systems

Coming Soon

This bulletin addresses common electrical issues and updates for the 2011-2013 QX56, including recommended fixes and part replacements.

Infiniti QX56 Parts Catalog

Coming Soon

This catalog lists all OEM electrical parts and accessories available for the 2011-2013 QX56, including part numbers and descriptions.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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