Subaru Subaru Impreza 2000-2007 Electrical Specifications
Subaru Subaru Impreza 2000-2007

Subaru Subaru Impreza 2000-2007 Electrical Specifications

Explore the electrical specifications for the 2000-2007 Subaru Impreza, including wiring diagrams, battery capacity, alternator output, and fuse ratings. Ideal for maintenance, repairs, and upgrades.

Updated

Overview Specifications

This document provides detailed electrical specifications for the 2000-2007 Subaru Impreza. It is designed to assist technicians, enthusiasts, and owners in understanding the vehicle's electrical systems, including wiring, components, and key performance metrics. Use the search functionality to locate specific terms or navigate through sections to explore detailed information about the battery, alternator, lighting, and other electrical systems.

How to Use

Use the search bar to enter keywords related to the electrical system you are researching. Results will highlight relevant sections and subsections for quick access.

Scroll through the document or use the table of contents to jump to specific sections. Each section is organized into subsections with detailed technical points for easy reference.

Key Specifications

Battery Voltage

12V

Alternator Output

90-110A

Headlight Wattage

55W (Low Beam)

Fuse Rating Range

5A-40A

Wiring Gauge

16-18 AWG

Available Specifications

Battery and Charging System

This section covers the battery specifications, alternator output, and charging system details for the 2000-2007 Subaru Impreza. It includes information on voltage, capacity, and maintenance requirements.

Battery Specifications
  • 12V lead-acid battery
  • Cold Cranking Amps (CCA): 550A
  • Reserve Capacity (RC): 90 minutes
  • Battery Group Size: 35
  • Maintenance-free design
  • Replacement interval: 3-5 years
Alternator Output
  • Output: 90-110 amps
  • Voltage: 14.4V at 2000 RPM
  • Belt-driven design
  • Integrated voltage regulator
  • Replacement interval: 100,000-150,000 miles

Lighting System

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

Headlights
  • Low beam: H11 halogen, 55W
  • High beam: 9005 halogen, 65W
  • Daytime Running Lights (DRL): Integrated
  • Replacement procedure: Remove front bezel
  • Adjustable beam angle
Taillights and Brake Lights
  • Taillight: 7443 bulb, 5W
  • Brake light: 7443 bulb, 21W
  • LED options available for aftermarket
  • Replacement procedure: Access via trunk
  • Water-resistant housing

Wiring and Fuses

This section outlines the wiring harness layout, fuse box locations, and common electrical issues. It includes details on wire gauge, fuse ratings, and troubleshooting tips.

Fuse Box Locations
  • Main fuse box: Under the dashboard
  • Secondary fuse box: Engine compartment
  • Fuse ratings: 5A to 40A
  • Spare fuses included
  • Color-coded for easy identification
Wiring Harness
  • Primary wire gauge: 16-18 AWG
  • Grounding points: Chassis and engine block
  • Weatherproof connectors
  • Common issues: Corrosion at connectors
  • Replacement harness available

Component Specifications

Overview

Type
12V DC system
Configuration
Negative ground
Platform
Subaru Global Platform
Material
Copper wiring with PVC insulation
Location
Distributed throughout vehicle

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)
Wire Gauge Range
8 AWG to 22 AWG
Fuse Box Dimensions
6.3 x 4.7 x 2.4 in (160 x 120 x 60 mm)

Materials

Wiring
Copper with PVC insulation
Battery Case
Polypropylene
Alternator Housing
Aluminum alloy
Fuse Box
Thermoplastic
Connectors
Nylon with brass contacts

Features

Lighting
  • Halogen headlights
  • LED tail lights
  • Fog lights
  • Automatic headlight leveling
Power Distribution
  • Central fuse box
  • Relay-controlled circuits
  • Smart alternator control
  • Battery monitoring system
instrumentation
  • Analog gauges with backlighting
  • Trip computer display
  • Warning light system
  • OBD-II port
Comfort
  • Power windows
  • Central locking system
  • Remote keyless entry
  • Cruise control
Safety
  • ABS system
  • Airbag control module
  • Seatbelt pretensioners
  • Tire pressure monitoring

Safety Features

Circuit Protection
  • Fuse protection
  • Circuit breakers
  • Overload protection
Short Circuit Prevention
  • Insulated wiring
  • Sealed connectors
  • Ground fault detection
Emergency Features
  • Hazard warning lights
  • Battery disconnect safety
  • Emergency trunk release

Comfort Features

Climate Control
  • Manual AC controls
  • Heated seats
  • Rear window defogger
Audio System
  • AM/FM radio
  • CD player
  • Auxiliary input
Lighting Comfort
  • Dome light with delay
  • Map lights
  • Glove box light

Accessories

Audio
  • Subwoofer wiring
  • Amplifier connections
  • Satellite radio interface
Lighting
  • Fog light kit
  • LED interior lights
  • Daytime running lights
Performance
  • Performance alternator
  • Upgraded battery
  • High-output ignition system

Maintenance

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

Warranty

Battery Warranty
Miles: 36,000
Years: 3
Coverage: Replacement for manufacturing defects
Alternator Warranty
Miles: 60,000
Years: 5
Coverage: Parts and labor
Wiring Warranty
Miles: 100,000
Years: 10
Coverage: Corrosion protection
Electronics Warranty
Miles: 36,000
Years: 3
Coverage: Control modules and sensors

Production Details

Manufacturer
Subaru Corporation
Manufacturing Process
  • Automated wire harness assembly
  • Robotic soldering
  • Precision testing
Quality Control
Voltage Testing: 100% tested
Continuity Check: Automated system
Environmental Testing: Temperature and vibration
Sustainability Practices
  • Lead-free solder
  • Recyclable wiring
  • Energy-efficient production
Production Metrics
Daily Output: 1200 units
Defect Rate: 0.02%
Energy Usage: 15 kWh per unit

Service Information for electrical Service

Maintenance and service requirements specific to the electrical system

30,000
24
  • Inspect battery terminals and cables
  • Check alternator output
  • Test all exterior lights
  • Verify fuse box connections
  • Inspect wiring harness for damage

Use dielectric grease on all electrical connections

60,000
48
  • Load test battery
  • Check ground connections
  • Inspect alternator belt
  • Test charging system
  • Verify OBD-II system functionality

Replace battery if capacity is below 70%

100,000
84
  • Complete electrical system diagnostic
  • Replace alternator if necessary
  • Inspect and clean all connectors
  • Check for wiring harness chafing
  • Verify proper operation of all sensors

Consider replacing original battery as preventive maintenance

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What electrical components are compatible with the 2000-2007 Subaru Impreza?

The 2000-2007 Subaru Impreza is compatible with a range of electrical components, including alternators, starters, and wiring harnesses designed for the GD/GG chassis. Ensure compatibility by checking part numbers and specifications, as variations exist between model years and trims. For example, the alternator output ranges from 75A to 110A depending on the model. Always verify fitment with your vehicle's VIN or consult a Subaru dealer.

Q2

What are the maintenance requirements for the electrical system in a 2000-2007 Subaru Impreza?

Regular maintenance of the electrical system 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 the alternator output should be verified every 30,000 miles. Wiring harnesses should be inspected for damage or wear, especially in older models, to prevent electrical failures.

Q3

How do I replace the alternator in a 2000-2007 Subaru Impreza?

To replace the alternator, first disconnect the negative battery terminal. Remove the serpentine belt using a wrench to release tension. Disconnect the electrical connectors and mounting bolts from the alternator. Install the new alternator, reconnect the electrical connectors, and reattach the serpentine belt. Finally, reconnect the battery terminal and test the alternator output to ensure proper installation.

Q4

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

Start by checking the battery voltage with a multimeter; it should read around 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 wiring issues, look for frayed or corroded wires. If the problem persists, consult a professional mechanic or refer to the vehicle's service manual for further diagnostics.

Q5

How can I optimize the electrical performance of my 2000-2007 Subaru Impreza?

To optimize electrical performance, upgrade to a high-output alternator if using additional accessories like audio systems or lighting. Use high-quality wiring and connectors to reduce resistance. Regularly clean battery terminals and ensure proper grounding. Consider installing a capacitor for high-power audio systems to stabilize voltage and reduce strain on the alternator.

Factory Service Resources

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

2000-2007 Subaru Impreza Service Manual

Coming Soon

Comprehensive guide covering electrical system diagnostics, maintenance, and repair procedures for the 2000-2007 Subaru Impreza.

Subaru Technical Service Bulletin: Electrical System Updates

Coming Soon

Details common electrical system issues and updates for the 2000-2007 Subaru Impreza, including alternator and wiring harness recalls.

Subaru Impreza Electrical Parts Catalog

Coming Soon

Catalog listing OEM and aftermarket electrical components compatible with the 2000-2007 Subaru Impreza, including part numbers and specifications.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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