2016 Honda Civic OBD2 Fuse and Fuse Box Location Guide

Understanding the fuse box layout in your 2016 Honda Civic is crucial for diagnosing and resolving electrical issues. This guide will walk you through the fuse box locations and diagrams for your vehicle, with a focus on fuses that may be relevant to your OBD2 port and overall vehicle diagnostics. Knowing where these fuses are and what they protect can save you time and potentially money on repairs.

Your 2016 Honda Civic sedan is equipped with two primary fuse boxes. These are strategically placed to protect different circuits throughout your car. Let’s explore each location and its corresponding fuse diagram.

Engine Compartment Fuse Box Diagram

The engine compartment fuse box is, as the name suggests, located in the engine bay. It houses fuses and relays that protect critical engine and vehicle systems. This box is essential for functions like engine management, cooling, and exterior lighting.

Engine Compartment Fuse Box Diagram for 2016 Honda Civic Sedan

Here is a breakdown of the fuses located in the engine compartment fuse box of your 2016 Honda Civic:

Interior Fuse Box Diagram

The interior fuse box in your 2016 Honda Civic is typically located under the dashboard, often on the driver’s side. This fuse box controls circuits for interior comfort, convenience features, and some critical vehicle control modules. It’s important to check this box if you are experiencing issues with systems inside the cabin.

Interior Fuse Box Diagram for 2016 Honda Civic Sedan

Here’s a detailed list of the fuses found in the interior fuse box:

OBD2 Port and Related Fuses

While there isn’t a fuse explicitly labeled “OBD2 fuse” in the provided diagrams for the 2016 Honda Civic, the OBD2 port relies on power and communication circuits that are protected by fuses within these boxes.

To ensure your OBD2 port is functioning correctly for diagnostics, you should check fuses related to the following systems:

• Engine Control Module (ECM) / Powertrain Control Module (PCM): Fuses like “FI ECU” (Fuse #12 in the Engine Compartment Fuse Box) and “Engine Control” (Fuse #11 in the Interior Fuse Box) are vital. A blown fuse here could disable the ECM/PCM, preventing OBD2 communication.
• Ignition System: Fuses related to ignition, like “IG Main” and “IG Coil”, are also important as the ECM/PCM needs to be powered when the ignition is on for diagnostics.
• Accessory Power: The OBD2 port often uses accessory power. Check the “Accessory” fuse (Fuse #1 in the Interior Fuse Box) if you suspect a power issue with the port.
• Transmission Control Module (TCM): For transmission related diagnostics, fuses like “Transmission” in both fuse boxes are relevant, particularly if you have a CVT model.

If you are experiencing issues connecting your OBD2 scanner to your 2016 Honda Civic, start by inspecting these fuses in both the engine compartment and interior fuse boxes. A visual inspection can often reveal a blown fuse. Always replace a blown fuse with one of the same amperage rating.

Disclaimer: This information is for general guidance only. Always consult your 2016 Honda Civic owner’s manual for the most accurate fuse box diagrams and fuse specifications for your specific vehicle trim and options. If you are not comfortable working with automotive electrical systems, it is recommended to seek assistance from a qualified mechanic.