HKS 45012-AH002 Suspension Error Canceler Type H for 2017-2021 Honda Civic Si

Vehicle Fitment

• 2017-2021 Honda Civic Si (FC1/FC3, L15B)
• 2017-2021 Honda Civic Type R (FK8, K20C) - includes 2021 Limited Edition

Features

• Eliminates variable damper system warning when installing aftermarket suspension
• Add-on plug-and-play unit - no cutting or splicing required
• Compatible with HKS Hipermax coilover kits
• Maintains operation when variable damper ECU is upgraded
• Pre-wired harness included for simple installation
• Restores functional gauges by cancelling suspension error light
• Compact design - mounts discreetly behind rear seat
• Durable electronic module built for automotive conditions

Specifications

• Part Number: 45012-AH002
• Type: Suspension Error Canceler (Type H)
• Compatibility: FK8, FC1, FC3 chassis
• Power: DC 12 V (vehicle battery)
• Dimensions: Approx. 115 x 75 x 28 mm
• Weight: ~150 g
• Installation: Includes plug-in wiring harness & double-sided tape

Included Components

• 1x SEC II Type H module (45012-AH002)
• 1x OEM-style wiring harness
• 1x Installation double-sided tape
• 1x Cable tie
• 1x Instruction sheet (Japanese)

Product Description

The HKS 45012-AH002 Suspension Error Canceler Type H is engineered for 2017-2021 Honda Civic Si (FC1/FC3) and Civic Type R (FK8, including the Limited Edition). This plug-and-play add-on module eliminates the variable damper system dashboard warning that appears when upgrading to aftermarket coilovers like the HKS Hipermax. Installation is straightforward - simply connect the harness behind the rear seat - no splicing or modifications needed.

Maintaining full ECU integration, this device continues functioning even after ECU updates, preserving your suspension functionality. Compact and durable, it fits neatly out of sight, ensuring a clean installation. If you're enhancing ride and handling with coilovers but want a clean dash and smooth suspension performance, the SEC II Type H is the perfect solution.

Note: This unit suppresses the warning light only - it does not resolve underlying ECU diagnostic faults. While it supports ECU changes, certain diagnostic functions may be disabled during its use. Includes a Japanese-language manual. Fitment confirmed the full 2021 model year; coverage for 2022+ is unconfirmed at time of listing.