Subaru Subaru Legacy 2010-2014 Electrical Specifications
Explore the comprehensive electrical specifications for the 2010-2014 Subaru Legacy. Learn about the battery, alternator, starter motor, wiring, and more. Perfect for maintenance, repairs, and upgrades.
Overview Specifications
This document provides detailed electrical specifications for the 2010-2014 Subaru Legacy. It is designed to assist technicians, enthusiasts, and owners in understanding the vehicle's electrical systems, including the battery, alternator, wiring, and lighting. Use the search and navigation instructions to quickly locate specific information. Each section is organized to provide a comprehensive overview of the electrical components and their technical details.
How to Use
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Key Specifications
Battery Voltage
12V
Alternator Output
130 Amps
Headlight Wattage
55W (Low Beam)
Fuse Rating
5A to 30A
Battery Capacity
55 Ah
Available Specifications
Battery and Charging System
This section covers the battery specifications, alternator output, and charging system details for the 2010-2014 Subaru Legacy. It includes information on voltage, capacity, and maintenance requirements.
Battery and Charging System
This section covers the battery specifications, alternator output, and charging system details for the 2010-2014 Subaru Legacy. It includes information on voltage, capacity, and maintenance requirements.
Battery Specifications
- Battery Type: 12V Lead-Acid
- Capacity: 55 Ah
- Cold Cranking Amps (CCA): 500 A
- Maintenance: Maintenance-Free
- Terminal Type: Top Post
- Dimensions: 9.1 x 6.9 x 7.5 inches
Alternator Specifications
- Output: 130 Amps
- Voltage: 12V
- Belt Type: Serpentine
- Pulley Diameter: 2.5 inches
Lighting System
This section provides details on the exterior and interior lighting systems, including headlights, taillights, and interior bulbs. It covers bulb types, wattage, and replacement procedures.
Lighting System
This section provides details on the exterior and interior lighting systems, including headlights, taillights, and interior bulbs. It covers bulb types, wattage, and replacement procedures.
Exterior Lighting
- Headlight Type: Halogen or HID (depending on trim)
- Headlight Wattage: 55W (Low Beam), 60W (High Beam)
- Taillight Bulb Type: LED
- Fog Light Wattage: 35W
Interior Lighting
- Dome Light Bulb Type: LED
- Map Light Wattage: 5W
- Trunk Light Wattage: 5W
- Glove Box Light Wattage: 1.2W
Wiring and Fuses
This section outlines the wiring harness layout, fuse box locations, and fuse ratings. It includes information on circuit protection and troubleshooting tips.
Wiring and Fuses
This section outlines the wiring harness layout, fuse box locations, and fuse ratings. It includes information on circuit protection and troubleshooting tips.
Fuse Box Locations
- Main Fuse Box: Under the Hood
- Secondary Fuse Box: Inside the Cabin
- Fuse Ratings: 5A to 30A
- Circuit Protection: Blade-Type Fuses
Wiring Harness
- Material: Copper with PVC Insulation
- Color Coding: Standardized for Easy Identification
- Ground Points: Multiple Locations
- Connector Types: Weatherproof
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Component Specifications
Overview
- Type
- 12V DC system
- Configuration
- Negative ground
- Platform
- Subaru Legacy 2010-2014
- Material
- Copper wiring, ABS plastic housings
- Location
- Engine bay, cabin, and rear trunk
Dimensions
- Battery Length
- 9.5 in (241 mm)
- Battery Width
- 6.9 in (175 mm)
- Battery Height
- 7.5 in (190 mm)
- Alternator Diameter
- 5.1 in (130 mm)
- Alternator Length
- 7.9 in (200 mm)
- Fuse Box Length
- 6.3 in (160 mm)
- Fuse Box Width
- 4.7 in (120 mm)
- Fuse Box Height
- 2.4 in (60 mm)
Materials
- Wiring
- Copper with PVC insulation
- Battery Case
- ABS plastic
- Alternator Housing
- Aluminum alloy
- Fuse Box
- Thermoplastic
- Connectors
- Nylon with brass terminals
Features
- Lighting
-
- Halogen headlights
- LED tail lights
- Automatic headlight leveling
- Daytime running lights
- Power Distribution
-
- Centralized fuse box
- Smart alternator control
- Battery management system
- Multiple power outlets
- Sensors
-
- Rain-sensing wipers
- Light sensors
- Temperature sensors
- Battery voltage sensor
- Entertainment
-
- AM/FM radio
- CD player
- Bluetooth connectivity
- Auxiliary input
- Safety
-
- ABS system
- Airbag control module
- Tire pressure monitoring
- Stability control
- Comfort
-
- Power windows
- Power door locks
- Heated seats
- Automatic climate control
Safety Features
- Circuit Protection
-
- Fuses
- Circuit breakers
- Relays
- Short Circuit Prevention
-
- Insulated wiring
- Ground fault detection
- Overload protection
- Emergency Features
-
- Hazard lights
- Emergency brake light
- Battery disconnect
Comfort Features
- Climate Control
-
- Automatic temperature control
- Rear defogger
- Heated mirrors
- Lighting
-
- Interior dome lights
- Map lights
- Ambient lighting
- Audio
-
- 6-speaker system
- Steering wheel controls
- USB connectivity
- Convenience
-
- Keyless entry
- Remote start
- Power trunk release
Accessories
- Exterior
-
- Fog lights
- LED light bars
- Roof rack lights
- interior
-
- Dash cam
- USB chargers
- Ambient lighting kits
- Performance
-
- High-output alternator
- Upgraded battery
- Performance wiring harness
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Battery inspection
- Alternator belt check
- Fuse inspection
- Wiring harness check
- Ground connections check
- Maintenance Notes
- Ensure all electrical connections are clean and secure. Use dielectric grease on connectors to prevent corrosion.
Warranty
- Battery Warranty
- Miles: 36,000Years: 3Coverage: Replacement for defects
- Alternator Warranty
- Miles: 60,000Years: 5Coverage: Repair or replacement
- Wiring Warranty
- Miles: 100,000Years: 10Coverage: Repair for corrosion or damage
- Electronics Warranty
- Miles: 36,000Years: 3Coverage: Repair or replacement for defects
Production Details
- Manufacturer
- Subaru Corporation
- Manufacturing Process
-
- Automated wiring harness assembly
- Precision molding for plastic components
- Robotic soldering for connections
- Quality Control
- Testing: Voltage drop tests, Continuity checks, Load testingStandards: ISO 9001, ISO 14001
- Sustainability Practices
-
- Recycled materials in wiring insulation
- Lead-free soldering
- Energy-efficient manufacturing
- Production Metrics
- Units Produced: 500,000 annuallyDefect Rate: 0.1%Energy Usage: 15 kWh per unit
Service Information for electrical Service
Maintenance and service requirements specific to the electrical system
- Inspect battery terminals for corrosion
- Check alternator belt tension
- Test battery voltage and charge
- Inspect wiring harness for wear
- Check all fuses and relays
Ensure all connections are clean and secure. Use dielectric grease on terminals.
- Replace alternator belt if necessary
- Test alternator output
- Inspect ground connections
- Check all lighting circuits
- Test all sensors and switches
Use a multimeter for accurate voltage readings. Replace any worn components.
- Replace battery if necessary
- Inspect and clean all electrical connectors
- Test all electronic control modules
- Check for any wiring harness damage
- Perform a full system diagnostic
Critical to replace any corroded or damaged wiring. Ensure all systems are functioning correctly.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What electrical components are compatible with the 2010-2014 Subaru Legacy?
What electrical components are compatible with the 2010-2014 Subaru Legacy?
The 2010-2014 Subaru Legacy is compatible with a range of electrical components, including alternators, starters, and battery systems designed for 12V operation. Ensure compatibility by checking part numbers and specifications, such as alternator output (typically 110-130A) and battery group size (e.g., 35 or 24F). Always verify fitment with your vehicle's trim level and engine type (e.g., 2.5L or 3.6L).
Q2 What are the maintenance requirements for the electrical system in a 2010-2014 Subaru Legacy?
What are the maintenance requirements for the electrical system in a 2010-2014 Subaru Legacy?
Regular maintenance for the electrical system includes inspecting the battery terminals for corrosion, checking the alternator belt for wear, and ensuring the battery is charged and functioning properly. Replace the battery every 3-5 years and inspect wiring harnesses for damage. Follow the owner's manual for specific intervals, typically every 30,000 miles for a comprehensive electrical system check.
Q3 How do I replace the alternator in a 2010-2014 Subaru Legacy?
How do I replace the alternator in a 2010-2014 Subaru Legacy?
To replace the alternator, disconnect the negative battery terminal. Remove the serpentine belt using a belt tensioner tool. Unbolt the alternator and disconnect its electrical connectors. Install the new alternator, reconnect the electrical connectors, and reinstall the serpentine belt. Reconnect the battery terminal and test the system. Refer to the service manual for torque specifications and detailed steps.
Q4 What should I do if my Subaru Legacy's electrical system is malfunctioning?
What should I do if my Subaru Legacy's electrical system is malfunctioning?
Start by checking the battery voltage with a multimeter; it should read 12.6V when off and 13.7-14.7V when running. Inspect fuses and relays for damage. If the alternator is suspected, test its output. For persistent issues, scan for error codes using an OBD-II scanner. Common problems include faulty alternators, corroded terminals, or damaged wiring.
Q5 How can I optimize the electrical system performance in my Subaru Legacy?
How can I optimize the electrical system performance in my Subaru Legacy?
Optimize performance by upgrading to a high-output alternator if using additional accessories like audio systems. Use a high-quality AGM battery for better durability and performance. Ensure all connections are clean and secure. Regularly inspect and replace worn components like belts and wiring. Consider adding a voltage stabilizer for consistent power delivery.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
2010-2014 Subaru Legacy Service Manual
Coming SoonComprehensive guide covering electrical system diagnostics, maintenance, and repair procedures for the 2010-2014 Subaru Legacy.
Subaru Technical Service Bulletin: Electrical System Updates
Coming SoonDetails updates and fixes for common electrical system issues in the 2010-2014 Subaru Legacy, including alternator and battery-related concerns.
Subaru Legacy Parts and Accessories Catalog
Coming SoonCatalog listing OEM and aftermarket electrical components, including alternators, batteries, and wiring harnesses for the 2010-2014 Subaru Legacy.
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Technical Information
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