Ignitions and Electrical› Ignition Boxes and Components

Directed

Immobilizer Interface Module

$39.99

SKU: 556U

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Directed 556U is a universal immobilizer interface module designed for use with remote start systems. It is compatible with most RF-based immobilizer systems that utilize a transponder chip in the ignition key. This module bypasses the factory anti-theft system temporarily during remote start operation, allowing the vehicle to start without disrupting the integrity of the factory immobilizer when not in use.
Show original supplier description
The Directed 556U is a universal immobilizer interface module essential for integrating remote start systems into vehicles equipped with RF-based factory immobilizer systems. These systems rely on a transponder chip within the ignition key to transmit a signal that enables the ignition and fuel systems. If an incorrect code is detected, the vehicle's immobilizer disables these systems, rendering remote start functions useless. The 556U module elegantly solves this by bypassing the immobilizer system exclusively during remote start activation. This ensures that the vehicle's factory anti-theft system remains fully functional when the remote start is not in use, maintaining vehicle security. The module itself is constructed from durable metal and plastic and features a simple two-wire connection for straightforward installation. Installation of the 556U requires an active vehicle ignition key to be housed within the interface module. It is typically mounted underneath the steering column. The module includes a 6-pin harness for power, ground, and status inputs, along with connections for the ignition and key-sense outputs. Professional installation is recommended for this component, as it requires vehicle matching and integration with other necessary parts for proper operation.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandDirected
Part Number556U
CategoryIgnitions and Electrical
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Returns & Fitment

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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