Acura MDX 2014-2020 Electrical Specifications
Acura MDX 2014-2020

Acura MDX 2014-2020 Electrical Specifications

Detailed technical specifications for the 2014-2020 Acura MDX electrical system, including wiring diagrams, fuse box layouts, and component details. Essential for technicians and enthusiasts.

Updated

Electrical Specifications Overview Specifications

This document provides a comprehensive overview of the electrical specifications for the 2014-2020 Acura MDX. It includes detailed information on key electrical systems, components, and technical data to assist with diagnostics, repairs, and upgrades. Use this guide to understand the electrical architecture, identify components, and reference specifications for proper system functioning.

How to Use

To search for specific information, use the search functionality by typing keywords such as 'battery voltage,' 'alternator output,' or 'fuse box location.' This will help you quickly locate relevant details within the document.

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Key Specifications

Battery Voltage

12V

Alternator Output

130A

Fuse Box Location (Main)

Driver's side under-dash

Wiring Harness Material

Copper core with PVC insulation

Maximum Power Draw

1500W

Available Specifications

Electrical System Overview

This section provides an overview of the electrical system in the 2014-2020 Acura MDX, including the main components and their functions. It covers the battery, alternator, fuse boxes, and wiring harness.

Battery and Charging System
  • Battery voltage: 12V
  • Battery capacity: 55Ah (depending on model year)
  • Alternator output: 130A
  • Charging system voltage: 13.5-15.5V
  • Recommended battery type: AGM
Fuse Boxes and Relays
  • Main fuse box location: Driver's side under-dash
  • Secondary fuse box location: Engine compartment
  • Total number of fuses: 40+ (depending on trim level)
  • Relay types: Various (e.g., coolant fan, fuel pump)
  • Fuse ratings: 5A to 30A

Wiring and Connectors

This section details the wiring harness, connector types, and circuit protection mechanisms in the 2014-2020 Acura MDX.

Wiring Harness
  • Wiring harness material: Copper core with PVC insulation
  • Main harness routes: Engine compartment to cabin
  • Sub-harnesses: Dedicated for infotainment, HVAC, and safety systems
  • Connector types: Weather-pack and OEM-specific connectors
  • Circuit protection: Fuses and relays

Lights and Accessories

This section covers the electrical specifications for the lighting and accessory systems in the 2014-2020 Acura MDX.

Exterior Lighting
  • Headlight type: LED (2017 and later) or Xenon HID
  • Taillight voltage: 12V
  • Turn signal flasher unit: Electronic
  • Brake light voltage: 12V
  • Fog light power: 55W
Interior Lighting
  • Interior light voltage: 12V
  • LED interior lights introduced in 2016
  • Map light power: 10W
  • Cargo area light: 5W
  • Door courtesy lights: LED

Component Specifications

Overview

Battery Type
Lead-Acid
Alternator Capacity
150 Amps
System Voltage
12 Volts
Hybrid System
Non-Hybrid
Electrical Architecture
CAN (Controller Area Network) Bus

Dimensions

Battery Length
12.0 in (304.8 mm)
Battery Width
6.5 in (165.1 mm)
Battery Height
7.5 in (190.5 mm)
Alternator Length
7.0 in (177.8 mm)
Alternator Width
5.0 in (127.0 mm)
Alternator Height
4.0 in (101.6 mm)
Fuse Box Length
10.0 in (254.0 mm)
Fuse Box Width
8.0 in (203.2 mm)
Fuse Box Height
3.0 in (76.2 mm)

Materials

Battery Terminals
Brass
Electrical Connectors
Weather-Resistant Plastic
Wiring Harness
Copper Core with PVC Insulation
Fuse Box Housing
High-Temperature Resistant Plastic

Features

Battery Features
  • Maintenance-Free
  • Deep Cycle Capability
  • 600 CCA (Cold Cranking Amps)
  • Enhanced Flooded Battery Design
Charging System Features
  • Smart Voltage Regulation
  • High-Efficiency Alternator Design
  • Overcharge Protection
  • Temperature-Compensated Charging
Wiring Features
  • Shielded Wiring for Reduced Interference
  • Waterproof Connectors
  • CAN Bus Communication
  • Integrated Power Distribution Module
Electrical Accessories
  • Power Sliding Moonroof
  • Heated Seats
  • Remote Start System
  • Multi-View Rear Camera

Safety Features

Fuse Box Protection
  • Blade-Style Fuses
  • Circuit Breaker Integration
  • Overcurrent Protection
  • Short Circuit Protection
Battery Protection
  • Overcharge Protection
  • Deep Discharge Protection
  • Thermal Monitoring
Electrical System Protection
  • Voltage Surge Protection
  • Reverse Polarity Protection
  • EMI/RFI Filtering

Comfort Features

Power Outlets
  • 120V AC Power Outlet
  • 12V DC Power Outlets (x4)
  • USB Charging Ports (x2)
Convenience Features
  • Keyless Access System
  • Push-Button Start
  • Memory Seats
  • Power Liftgate
infotainment Features
  • 8-Inch Touchscreen Display
  • Bluetooth Hands-Free Link
  • Tri-Zone Automatic Climate Control
  • Premium Audio System

Accessories

Electrical Accessories
  • Rear Entertainment System
  • Wireless Charging Tray
  • Illuminated Door Sills
  • Trailer Harness
Convenience Packages
  • Technology Package
  • Advance Package
  • Entertainment Package
Customization Options
  • Illuminated Steering Wheel Controls
  • LED Ambient Lighting
  • Power Folding Mirrors
  • Heated Steering Wheel

Maintenance

Service interval
Every 30,000 miles or 36 months
Maintenance Items
  • Battery Terminal Inspection
  • Alternator Belt Inspection
  • Fuse Box Inspection
  • Wiring Harness Check
  • CAN Bus System Scan
  • Battery Test
Maintenance Notes
Regular inspection of electrical components is crucial for reliability. Battery replacement recommended every 5 years or as needed.

Warranty

Basic Warranty
Miles: 36000
Years: 3
Coverage: Basic Electrical Components
Battery Warranty
Miles: 60000
Years: 5
Coverage: Battery and Charging System
Powertrain Warranty
Miles: 70000
Years: 5
Coverage: Electrical Powertrain Components
Accessory Warranty
Miles: 18000
Years: 1
Coverage: Accessories and Entertainment Systems

Production Details

Manufacturer
Honda Motor Co., Ltd.
Manufacturing Process
  • Robotic Welding
  • Laser Cutting
  • Automated Assembly Lines
  • Quality Control Inspections
Quality Control
inspection Checklist: Electrical Component Testing, Wiring Harness Verification, Battery Performance Test, CAN Bus Communication Check
Certifications: ISO 9001, IATF 16949, ISO 14001
Sustainability Practices
  • Recyclable Materials
  • Energy-Efficient Manufacturing
  • Reduced Emissions
Production Metrics
Units Per Year: 75000
Plants: Lincoln, Alabama, USA, Sayama, Saitama, Japan

Service Information for Electrical Service

Maintenance and service requirements specific to the electrical system

7,500
12
  • Inspect battery terminals and cables
  • Check alternator belt condition
  • Test battery voltage and charging system
  • Verify all electrical connectors
  • Scan CAN bus for fault codes

Essential for maintaining electrical system health and reliability

30,000
36
  • Replace air filter in electronic control modules
  • Inspect wiring harness for damage
  • Test fuse box and circuit breakers
  • Check power distribution module
  • Update software if necessary

Recommended for optimal performance and safety

60,000
60
  • Replace battery if capacity is below 80%
  • Inspect alternator brushes and bearings
  • Clean electrical connectors
  • Perform comprehensive CAN bus diagnostic
  • Check for any software updates

Critical for long-term reliability and performance

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What is the battery voltage specification for the 2014-2020 Acura MDX?

The 2014-2020 Acura MDX uses a 12-volt battery system. The battery should maintain a voltage range of 12.4V to 12.7V when the vehicle is off and 13.7V to 14.7V when the engine is running. Always use a compatible AGM (Absorbent Glass Mat) battery for optimal performance.

Q2

What is the alternator output rating for the 2014-2020 Acura MDX?

The alternator in the 2014-2020 Acura MDX has an output rating of 150 amps. This ensures sufficient power for the vehicle's electrical systems, including advanced features like the infotainment system, climate control, and lighting.

Q3

How do I reset the TPMS (Tire Pressure Monitoring System) on the 2014-2020 Acura MDX?

To reset the TPMS, ensure all tires are inflated to the recommended pressure (32 psi for front and rear tires). Turn the ignition to the ON position without starting the engine. Press and hold the TPMS reset button (located under the dashboard) until the TPMS light blinks twice. Release the button and wait for the system to recalibrate.

Q4

What is the fuse rating for the headlights on the 2014-2020 Acura MDX?

The headlights on the 2014-2020 Acura MDX are protected by 15-amp fuses. These fuses are located in the under-hood fuse box. Always replace blown fuses with the same rating to avoid electrical system damage.

Q5

Can I upgrade the factory headlights to LED on the 2014-2020 Acura MDX?

Yes, you can upgrade to LED headlights, but ensure they are compatible with the vehicle's electrical system. Use LED bulbs with a CANBUS-compatible design to avoid error messages or flickering. Consult the owner's manual or a certified technician for proper installation.

Factory Service Resources

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

2014-2020 Acura MDX Electrical Wiring Diagrams

Coming Soon

Detailed wiring diagrams for all electrical systems, including lighting, infotainment, and sensors.

Acura MDX Battery Replacement Guide

Coming Soon

Step-by-step instructions for replacing the 12V AGM battery, including safety precautions and reset procedures.

TPMS Troubleshooting and Calibration

Coming Soon

A guide to diagnosing and recalibrating the Tire Pressure Monitoring System for optimal performance.

Alternator Testing and Replacement

Coming Soon

Instructions for testing alternator output and replacing it if necessary, including torque specifications.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

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