Honda Civic Wiring Diagram (2019-2022)

2019-2022 Honda Civic Wiring Diagram

(25 customer reviews)

$16.90

This is the original OEM workshop electrical manual for the 2019-2022 Honda Civic wiring diagram in a simple PDF format.

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This is the OEM Electrical Wiring Diagram Manual for the 2019-2021 Honda Civic, available in a user-friendly PDF format. This comprehensive manual provides detailed and accurate wiring diagrams essential for diagnosing, troubleshooting, and repairing the electrical systems of your Honda Civic.

File Format PDF
File Language English
You’ll Get 14 MB
Page Count 139
Delivery Method Instant Download

Key Features:

  • Comprehensive Coverage: Includes detailed wiring diagrams for all electrical components and systems specific to the 2019, 2020, and 2021 Honda Civic models. 
  • User-Friendly Format: The PDF format allows for easy navigation, zooming, and printing of specific sections, facilitating efficient use during repairs. 
  • Manufacturer-Approved Content: This manual contains the same information trusted by Honda dealership technicians, ensuring accurate and reliable procedures. 

Benefits:

  • Accurate Diagnostics: Provides precise wiring schematics to assist in the effective diagnosis and resolution of electrical issues. 
  • Cost-Effective Maintenance: Empowers owners and technicians to perform electrical repairs independently, potentially saving on service costs. Honda Info Center
  • Immediate Access: Digital PDF format ensures instant availability on various devices, allowing for quick reference during repairs. 
Note: This manual is an indispensable resource for both professional mechanics and DIY enthusiasts who seek a reliable guide to the electrical systems of the 2019-2021 Honda Civic.

This manual includes the procedures for maintenance, disassembling, reassembling, inspection, and adjustment of components and diagnostics for the guidance of experienced mechanics. Please use this manual to ensure complete repair work to keep your vehicle in optimum condition. Please make sure to use Honda OEM genuine parts.

Table of Contents : 2019-2022 Honda Civic Wiring Diagram

Table of Contents 2019-2022 Honda Civic Wiring Diagram

Sample Pages

CAUTION: Please note that this manual is made for the use of persons who have special techniques and certifications. If non-specialized or uncertified technicians perform repairs or services only using this manual or without proper equipment or tools, this may cause severe injury to you or other persons nearby and also cause damage to your vehicle. To prevent dangerous operations and damage to your vehicle, please be sure to follow the instructions thoroughly.

🛠️ Common Issues with the 2019-2021 Honda Civic

🚗 2019–2022 Honda Civic Overview

(10th Gen: 2019–2021 | 11th Gen: 2022)

⚙️ Engine & Performance

🧩 Engine Type ⚡ Horsepower 🌀 Torque ⛽ MPG (City/Hwy) 🚘 Trims
2.0L I4 (NA) 158 hp 138 lb-ft 30 / 38 LX, Sport
1.5L Turbo I4 174–180 hp 162–177 lb-ft 32 / 42 EX, EX-L, Touring
2.0L Turbo (Si) 205 hp 192 lb-ft 26 / 36 (MT) Civic Si
2.0L Turbo (Type R) 306 hp 295 lb-ft 22 / 28 Civic Type R

🎮 Transmission Options

  • ⚙️ 6-Speed Manual (Sport, Si, Type R)
  • 🧠 CVT (Continuously Variable Transmission) for LX, EX, Touring

🧳 Trims & Notable Features

🏷 Trim 🌟 Key Features
LX LED DRLs, Honda Sensing, 7″ screen
Sport Apple CarPlay/Android Auto, 18″ wheels
EX / EX-L Turbo, sunroof, dual-zone climate
Touring Bose audio, wireless CarPlay, leather
Si / Type R Sport-tuned, manual only, performance-focused

🛠️ Common Issues

⚠️ Problem 🛑 Symptoms 🧰 Fix
❄️ AC Failure Weak/no cooling Replace condenser or compressor
⛽ Oil Dilution Fuel smell in oil Frequent oil changes, ECU update
📱 Infotainment Bugs Freezing/reboots Software reset/update
🎨 Paint Peeling Fading, flaking paint Repaint (often not under warranty)

🧾 Maintenance Schedule

🔧 Task ⏰ Interval
🛢 Oil Change Every 7,500–10,000 mi
⚙️ CVT Fluid Every 25,000–30,000 mi
🔌 Spark Plugs (Turbo) 100,000 mi
🌬 Air & Cabin Filters 15,000–30,000 mi
🧯 Brake Fluid Every 3 years
🌡 Coolant Replacement 100,000 mi / 10 years

🔁 Recalls & TSBs

📣 Recall / TSB 🚨 Affected Years 🔧 Resolution
❄️ AC System Defect 2016–2020 Extended warranty / replace
⛽ Fuel Pump Issue 2019–2020 Fuel pump replacement
⚙️ Instrument Cluster Glitch 2019–2020 Software update
🪑 Seatbelt Sensor Recall 2021–2022 Replace sensor

🤝 Competitor Comparison

🚘 Competitor ✅ Pros ❌ Cons
Toyota Corolla Ultra reliable, hybrid available Not sporty to drive
Mazda3 Upscale interior, great handling Small rear space
Hyundai Elantra Great features, strong warranty Rougher ride
Kia Forte Value-packed, turbo option Base models lack refinement
VW Jetta Roomy, solid German ride feel DSG maintenance costs

✅ Pros

    • 🔋 Fuel-efficient across all trims
    • 🧠 Standard Honda Sensing safety suite
    • 🎯 Fun to drive, especially in manual trims
    • 💵 Strong resale value
    • 🛠️ Low cost of ownership

❌ Cons

    • 🧊 AC reliability in earlier years
    • 🌀 CVT may feel disconnected to some drivers
    • 🎨 Paint issues (roof/hood in some colors)
    • 🚫 Coupe discontinued after 2020

🔌  Common Diagnostic Trouble Codes (DTCs) for the Honda Civic

Here’s a helpful guide to common Diagnostic Trouble Codes (DTCs) for the Honda Civic, covering both generic OBD-II codes and some Honda-specific ones—suitable for most models from 2012 to 2022.

🔌 Common Honda Civic DTCs (OBD-II)

🔢 DTC Code 🚨 Description 🛠️ Likely Cause
P0300 Random/Multiple Cylinder Misfire Faulty spark plugs, ignition coils, or vacuum leak
P0301–P0304 Misfire in Cylinder 1–4 Same as above, check individual cylinders
P0171 System Too Lean (Bank 1) Dirty MAF sensor, vacuum leak, or low fuel pressure
P0420 Catalyst System Efficiency Below Threshold Faulty catalytic converter or O2 sensors
P0455 EVAP System Large Leak Detected Loose/missing gas cap, EVAP hose leak
P0456 EVAP System Small Leak Detected Micro leak in fuel vapor system, check charcoal canister
P0128 Coolant Thermostat (Coolant Temp Below Regulating Temperature) Stuck open thermostat
P0113 Intake Air Temperature Sensor 1 Circuit High Disconnected/bad IAT sensor
P0102 MAF Circuit Low Input Dirty or faulty Mass Air Flow sensor
P0135 O2 Sensor Heater Circuit (Bank 1 Sensor 1) Faulty upstream O2 sensor or wiring

📱 Honda-Specific Codes (Some require dealer-level scan tools)

🧩 Code 🚨 Description ⚠️ Cause
61-1 Battery Voltage Too Low Weak battery or charging system fault
83-1 VSA System Malfunction Brake pressure sensor issue or wheel speed sensor
84-1 Yaw Rate Sensor Fault Calibration needed or sensor failure
11-1 Right Front Wheel Speed Sensor Signal Failure ABS sensor issue
DTC B1237 Sunlight Sensor Circuit Failure Affects auto A/C system
B1000–B1009 SRS Internal Errors Supplemental Restraint System (airbags) fault
U0122 Lost Communication with Vehicle Dynamics Control Module Possible VSA/ABS module or CAN bus issue

🧰 How to Check & Clear Codes

  • Use an OBD-II scanner (Bluetooth, handheld, or dealer tool)
  • For Honda-specific systems (SRS, VSA, TPMS), a Honda HDS tool or advanced scanner may be needed
  • Clearing codes without fixing the root issue will usually result in them returning

To learn how to check and clear Diagnostic Trouble Codes (DTCs) on your Honda Civic, here’s a recommended video tutorial:

✅ Pro Tip: After a repair or code clear, always perform a drive cycle to allow all systems to reset and for readiness monitors to complete.

🏁 Final Verdict: Why the Civic Still Reigns Supreme

The 2019–2022 Honda Civic continues to uphold its legacy as one of the most well-rounded compact cars on the market. Whether you’re commuting, road-tripping, or simply looking for a reliable daily driver, the Civic delivers with efficiency, comfort, safety, and just the right touch of fun.

Its wide trim selection means there’s a Civic for everyone—from fuel-conscious drivers to performance enthusiasts. While it isn’t without a few quirks (👋 looking at you, A/C and infotainment bugs), the Civic’s overall value, reliability, and modern design make it a top-tier choice in its segment.

✅ Still one of the smartest, safest, and most satisfying small cars money can buy.

File Format

PDF
File Language

English
File Size

14 MB
Page Count

139
Instant Download

YES

25 reviews for 2019-2022 Honda Civic Wiring Diagram

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