2022-2023 Honda Civic EPB Harness DTCs Investigation

Investigation into Honda Civic EPB Harness DTCs

American Honda Motor Co., Inc. (AHM) has initiated a "Request for Parts: 2022-2023 Civic EPB Harness DTCs (ACTION REQUIRED)" to investigate a specific condition affecting certain 2022-2023 Honda Civic models. This effort aims to understand the underlying cause of diagnostic trouble codes (DTCs) C1110-13 and C1100-94, which are linked to the Electric Parking Brake (EPB) system. Honda is actively collecting components from vehicles that exhibit these specific fault codes and symptoms to develop a comprehensive repair strategy.

This investigation focuses on understanding why some vehicles are experiencing these particular issues with the Electric Parking Brake harness. The findings from this parts collection will be critical in identifying the root cause and formulating an effective solution for the affected Honda Civic EPB harness DTCs.

Symptoms Owners May Experience

Owners of affected 2022-2023 Honda Civic vehicles may observe several warning signs. The primary indicators include "intermittent or persistent warning lights on the MID (Multi-Information Display) such as brake system problems, LKAS (Lane Keeping Assist System), and ACC (Adaptive Cruise Control) lights." These dashboard warnings suggest a malfunction within the vehicle's braking or driver-assistance systems.

Diagnostic Trouble Codes (DTCs)

The specific diagnostic trouble codes that Honda is investigating are directly related to the Electric Parking Brake system. If your vehicle is experiencing the symptoms described, a diagnostic scan may reveal one or both of the following codes:

• C1110-13: "Left-Rear Electric Parking Brake Actuator Circuit Open"
• C1100-94: "Electric Parking Brake Actuator Malfunction"

These codes indicate a problem with the left-rear electric parking brake actuator or its associated electrical circuit. The presence of these specific DTCs is a key qualifier for Honda's parts collection initiative.

What Honda is Investigating

Honda's objective is to collect specific parts from qualifying vehicles to thoroughly analyze the root cause of the "Left-Rear Electric Parking Brake Actuator Circuit Open" and "Electric Parking Brake Actuator Malfunction" conditions. By examining these components directly, AHM hopes to gain insights into why these DTCs are being stored and why owners are experiencing related warning lights. This proactive approach is designed to ensure future reliability and safety for Honda Civic owners.

What Owners Should Know

If you own a 2022 or 2023 Honda Civic with an automatic transmission and are experiencing "intermittent or persistent warning lights on the MID (Multi-Information Display) such as brake system problems, LKAS (Lane Keeping Assist System), and ACC (Adaptive Cruise Control) lights," along with the diagnostic codes C1110-13 or C1100-94, your vehicle might qualify for this investigation. It is important to note that Honda is currently in a data collection phase, not yet providing a repair solution for the Honda Civic EPB harness DTCs.

Important Warning

Honda explicitly states, "No repairs or disassembling of the harness and motor has been attempted for this issue during the current visit." If you believe your vehicle qualifies, do not attempt any repairs or disassembly of the electric parking brake harness or motor yourself, as this will disqualify your vehicle from the investigation.

Next Steps for Owners

If your vehicle meets the specified criteria, you should contact your authorized Honda dealership. Dealership personnel have been instructed to identify and report qualifying vehicles to Honda's Technical Information & Support (TIS) group. This process involves emailing TIS with specific vehicle information, including the model year, model name, VIN, current mileage, and an All-DTC Check printout. Participating technicians who successfully identify and report a qualifying vehicle may receive a VISA gift card as a gesture of appreciation from Honda.

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Source: NHTSA ID: 11030677