Subaru Subaru Impreza 2007-2011 Electrical Specifications
Subaru Subaru Impreza 2007-2011

Subaru Subaru Impreza 2007-2011 Electrical Specifications

Explore the detailed electrical specifications for the 2007-2011 Subaru Impreza, including battery capacity, alternator output, fuse ratings, and wiring diagrams. Ideal for repairs, maintenance, and upgrades.

Updated

Overview Specifications

This document provides detailed electrical specifications for the 2007-2011 Subaru Impreza. It is designed to assist technicians, enthusiasts, and owners in understanding the vehicle's electrical systems, including wiring, fuses, and components. Use the search functionality to locate specific terms or navigate through sections for comprehensive information. Each section is organized to provide clear and concise details for easy reference.

How to Use

Use the search bar to enter keywords related to the electrical system, such as 'fuse box' or 'alternator.' Results will highlight relevant sections and subsections for quick access.

Scroll through the sections to explore major topics. Click on a section title to expand its subsections and view detailed technical points. Use the quick reference table for key specifications.

Key Specifications

Battery Voltage

12V

Alternator Output

110A

Fuse Box Fuses

24

Headlight Wattage

55W (low beam)

Taillight Bulb Type

7443

Available Specifications

Battery and Charging System

This section covers the battery, alternator, and related components. It includes details on voltage, amperage, and maintenance requirements to ensure optimal performance and longevity of the charging system.

Battery Specifications
  • Battery type: 12V lead-acid
  • Cold cranking amps (CCA): 550A
  • Reserve capacity: 90 minutes
  • Battery dimensions: 9.5 x 7 x 7.5 inches
  • Replacement interval: 3-5 years
  • Maintenance: Check electrolyte levels monthly
Alternator Specifications
  • Output: 110A at 2000 RPM
  • Voltage: 14.4V
  • Belt type: Serpentine
  • Replacement interval: 100,000-150,000 miles
  • Testing: Use a multimeter to check output voltage

Fuse Box and Wiring

This section provides information on the fuse box layout, fuse ratings, and wiring diagrams. It helps identify and troubleshoot electrical issues related to fuses and circuits.

Fuse Box Layout
  • Location: Under the dashboard (driver's side)
  • Number of fuses: 24
  • Fuse ratings: 5A to 30A
  • Common fuses: Headlights (15A), Radio (10A), ECU (7.5A)
  • Spare fuses: Included in the fuse box cover
Wiring Diagrams
  • Color-coded wiring for easy identification
  • Ground points: 4 main locations
  • Wire gauge: 16-22 AWG
  • Connector types: Weatherproof and standard
  • Troubleshooting: Check for continuity and corrosion

Lighting System

This section details the lighting system, including headlights, taillights, and interior lights. It covers bulb types, wattage, and replacement procedures.

Headlights
  • Bulb type: H11 (low beam), 9005 (high beam)
  • Wattage: 55W (low beam), 65W (high beam)
  • Replacement procedure: Remove housing cover, twist bulb socket
  • Alignment: Adjustable via screws on housing
  • Optional: Upgrade to LED or HID bulbs
Taillights and Brake Lights
  • Bulb type: 7443 (dual filament)
  • Wattage: 21W (tail), 5W (brake)
  • Replacement procedure: Access from inside trunk
  • Lens material: Polycarbonate
  • Optional: Add LED strips for customization

Component Specifications

Overview

Type
12V DC system
Configuration
Negative ground
Platform
Subaru Global Platform
Material
Copper wiring, aluminum connectors
Location
Front and rear distribution

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
6.3 in (160 mm)
Wiring Harness Length
15.7 ft (4.8 m)
Fuse Box Dimensions
6.3 x 4.7 x 2.4 in (160 x 120 x 60 mm)

Materials

Wiring
Copper with PVC insulation
Connectors
Aluminum with corrosion-resistant coating
Battery Case
Polypropylene
Alternator Housing
Aluminum alloy

Features

Lighting
  • Halogen headlights
  • LED tail lights
  • Automatic headlight leveling
  • Fog lights
Power Distribution
  • Centralized fuse box
  • Relay-controlled circuits
  • Smart alternator control
  • Battery monitoring system
Sensors
  • Rain-sensing wipers
  • Ambient light sensor
  • Temperature sensors
  • Voltage sensors
Entertainment
  • AM/FM radio
  • CD player
  • Auxiliary input
  • Bluetooth connectivity
Safety
  • ABS wiring harness
  • Airbag control module
  • Seatbelt pretensioners
  • Crash sensors

Safety Features

Circuit Protection
  • Fuse protection
  • Circuit breakers
  • Overload protection
Crash Safety
  • Automatic battery disconnect
  • Reinforced wiring harness
  • Impact-resistant connectors
Fire Prevention
  • Flame-retardant wiring
  • Heat-resistant insulation
  • Thermal fuses

Comfort Features

Climate Control
  • Automatic temperature control
  • Rear defogger
  • Heated mirrors
Lighting
  • Map lights
  • Dome light
  • Trunk light
Power Accessories
  • Power windows
  • Power door locks
  • Power mirrors

Accessories

Audio
  • Subwoofer
  • Amplifier
  • Satellite radio
Lighting
  • LED interior lights
  • Fog light kit
  • Daytime running lights
Charging
  • USB charger
  • 12V power outlet
  • Wireless charging pad

Maintenance

Service interval
Every 30,000 miles or 24 months
Service Items
  • Battery terminal cleaning
  • Alternator belt inspection
  • Fuse box inspection
  • Ground connection check
  • Wiring harness inspection
Maintenance Notes
Use only OEM-specified fuses and relays

Warranty

Basic
Miles: 36,000
Years: 3
Coverage: Electrical components
Powertrain
Miles: 60,000
Years: 5
Coverage: Alternator and starter
Corrosion
Miles: Unlimited
Years: 5
Coverage: Wiring harness and connectors
Battery
Miles: 36,000
Years: 3
Coverage: Replacement if defective

Production Details

Manufacturer
Subaru Corporation
Manufacturing Process
  • Automated wiring harness assembly
  • Robotic soldering
  • Precision testing
Quality Control
Voltage Testing: 100% tested
Continuity Check: Automated system
insulation Test: High-voltage verification
Sustainability Practices
  • Lead-free soldering
  • Recyclable materials
  • Energy-efficient production
Production Metrics
Daily Output: 500 units
Defect Rate: 0.1%
Energy Usage: 15 kWh per unit

Service Information for electrical Service

Maintenance and service requirements specific to this component

30,000
24
  • Inspect battery terminals
  • Check alternator output
  • Test all fuses
  • Inspect wiring harness
  • Verify ground connections

Ensure all connections are clean and secure

60,000
48
  • Replace battery if necessary
  • Inspect alternator belt
  • Test all electrical sensors
  • Check lighting circuits
  • Verify charging system

Use diagnostic tools for accurate testing

100,000
84
  • Replace alternator if needed
  • Inspect all wiring for wear
  • Test all relays
  • Check power distribution
  • Verify system voltage

Consider professional inspection for complex systems

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What electrical components are compatible with the 2007-2011 Subaru Impreza?

The 2007-2011 Subaru Impreza is compatible with a range of electrical components, including alternators, starters, and wiring harnesses designed for the EJ-series engines. Ensure compatibility by matching part numbers with OEM specifications or consulting a Subaru dealer. Aftermarket components should meet SAE or ISO standards for optimal performance and safety.

Q2

What are the maintenance requirements for the electrical system in a 2007-2011 Subaru Impreza?

Regular maintenance includes inspecting the battery terminals for corrosion, checking the alternator belt for wear, and ensuring all fuses and relays are functioning. The battery should be tested annually, and wiring harnesses should be inspected for damage every 30,000 miles. Follow the owner's manual for specific intervals and procedures.

Q3

How do I replace the alternator in a 2007-2011 Subaru Impreza?

To replace the alternator, disconnect the battery, remove the serpentine belt, and unbolt the alternator. Disconnect the electrical connectors and wiring harness. Install the new alternator by reversing the steps, ensuring all connections are secure. Reconnect the battery and test the charging system to confirm proper operation.

Q4

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

Start by checking the battery voltage and connections. Inspect fuses and relays for faults. Use a multimeter to test the alternator output and wiring continuity. Common issues include corroded terminals, faulty alternators, or damaged wiring. If the problem persists, consult a professional technician or refer to the service manual.

Q5

How can I optimize the electrical system performance in my 2007-2011 Subaru Impreza?

Optimize performance by upgrading to a high-output alternator, using high-quality wiring, and ensuring proper grounding. Regularly clean battery terminals and inspect wiring for wear. Consider adding a capacitor for audio systems or auxiliary lighting to reduce strain on the electrical system.

Factory Service Resources

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

2007-2011 Subaru Impreza Service Manual

Coming Soon

Comprehensive guide covering electrical system diagnostics, repair procedures, and maintenance schedules for the 2007-2011 Subaru Impreza.

Subaru Technical Service Bulletin: Electrical System Updates

Coming Soon

Details updates and fixes for common electrical system issues in the 2007-2011 Subaru Impreza, including alternator and wiring harness recalls.

Subaru Impreza Parts and Accessories Catalog

Coming Soon

Catalog listing OEM and aftermarket electrical components, including alternators, starters, and wiring harnesses for the 2007-2011 Subaru Impreza.

About the Author

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Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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