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Directed 556UXL Universal Bypass

Allows remote start in vehicles requiring a radio-frequency transponder key to start

Item # 607556UXL

Some vehicles absolutely need the key or fob to be in close proximity to the ignition switch in order to start.

Find what Fits your vehicle

Some vehicles absolutely need the key or fob to be in close proximity to the ignition switch in order to start.

California customers:
Please click here for your Proposition 65 warning.

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Contact our Virginia-based experts.

Item # 607556UXL

In stock
$19.99

Other options

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Need help?
Contact our Virginia-based experts.

About the Directed 556UXL Universal Bypass

Start your car remotely, even if it needs a key with a chip

Some vehicles absolutely need the key or fob to be in close proximity to the ignition switch in order to start. This transponder key uses a radio-frequency signal to disarm the vehicle's immobilizer, so you can start it. Directed's 556UXL bypass module provides a clever work-around, so you can add a remote start system that'll work in such a vehicle.

Start your car remotely, even if it needs a key with a chip

Some vehicles absolutely need the key or fob to be in close proximity to the ignition switch in order to start. This transponder key uses a radio-frequency signal to disarm the vehicle's immobilizer, so you can start it. Directed's 556UXL bypass module provides a clever work-around, so you can add a remote start system that'll work in such a vehicle.

You put a key in it

You will need to permanently install one of your vehicle's keys inside the 556UXL module. (The 556UXL is a larger version of the 556UW, designed to handle larger keys.) If you need that spare key, you can buy one through your dealer and have it programmed to work with your car's immobilizer. Ask your dealer if keys can be programmed individually — some vehicle manufacturers require that all keys be reprogrammed at one time.

IMPORTANT:

If you know how to use a multimeter and have experience working with your vehicle's electrical system, you should be able to install this bypass module yourself. If not, please consider having your system professionally installed.

To ensure vehicle compatibility, please enter your vehicle information. Your order will be reviewed by our Car Experts group, who will contact you if further information or recommended accessories are needed.

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Product highlights:

  • universal immobilizer bypass for a remote start system
  • compatible with most factory RF immobilizer or transponder systems
  • requires permanent key mount
  • temporarily overrides the factory immobilizer
  • maintains integrity of factory anti-theft system
  • kit can be tuned for use with European or domestic vehicles
  • supplied harnesses splice into factory wiring
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # 556UXL

What's in the box:

  • Immobilizer bypass module
  • 39" 6-Pin harness w/inline 3A ATO fuse
  • 30" 3-Pin transponder loop harness
  • Instruction manual

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More details on the Directed 556UXL Universal Bypass

Russ B.
The Directed 556UXL Universal Bypass replaces these items:

Product Research

Features

Overview: The Directed 556UXL immobilizer interface lets you install a remote start module (sold separately) in vehicles equipped with an RF (Radio Frequency) based immobilizer system. This type of system uses a small chip embedded in the ignition key (transponder) to transmit a very low-power RF signal. This signal is picked up through an antenna that's looped or coiled around the ignition switch which is then sent to the immobilizer's transceiver. This allows the immobilizer to enable the ignition switch and fuel system. If an attempt is made to start the vehicle and the transceiver has not received the correct code, the ignition and fuel system are disabled. The 556UXL will bypass the immobilizer system only while the remote start is in use, maintaining the factory system's integrity when not being used.

Note: One of the vehicle's coded keys or key FOB must be permanently installed inside the 556UXL for operation.

Compatibility: 556UXL can be used with most RF based vehicle immobilizer systems, and any Remote Start system that can provide a Status/GWR negative (-) ground output while the remote start is active. Check here to see if your vehicle is compatible.

Connection Type: The Directed 556UXL can be configured for either a Standard Immobilizer or for an Alternate Immobilizer system.

  • Standard Immobilizer Interface: This method is used for most current vehicles and requires the included Transponder Loop Harness to be installed around the vehicle ignition switch housing.
    • Note: The Transponder Loop must be placed in front of the factory receiver ring and not on top of or behind it.
  • Alternate Immobilizer Interface (Option 1 & 2): This rare connection method is used with immobilizer systems that have a 2-wire factory antenna harness. For this type of installation, the included Transponder Loop harness gets cut off, with the bare-ended wires connecting directly to the factory antenna's 2 wires. Option 1 and Option 2 use the same basic wiring with only a variation in the 556UXL's  Black/Red wire connection.

    Notes:

    • Alternate Immobilizer Option 1 cannot be used with European vehicles.
    • Alternate Immobilizer Option 2 can be used with European vehicles.

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