Haltech Nexus Ti4L Transmission Interface Kit - Suits GM 4L series
Suits: Nexus Series ECUs & VCUs including Rebel LS Does not support Elite / Platinum / Legacy ECUs
Notes: Supports 4L60E, 4L65E, 4L70E (Non 4x4 2006-2008 only and 4L80E, 4L85E (Non 4x4 1994 onwards only

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<h2>Ti4L Unit Overview</h2>
<p>The <strong>Ti4L</strong> unit allows easy control for GM's popular 4L series of automatic transmissions. Designed as an expansion module for the <strong>NEXUS ECU</strong> and <strong>VCU</strong> range, the Ti4L will be programmed via our <strong>NSP software</strong>, or Rebel LS users can follow the simple setup wizard in the <strong>Haltech Connect App</strong>.</p>
<p>Easy setup is not the only feature! We've also developed smart long-term learning strategies via closed loop line pressure control, which means shifting gets better the more you drive.</p>
<h3>Supports the Following Transmissions:</h3>
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<li><strong>4L60E, 4L65E, 4L70E</strong> (Non-4x4, 2006-2008 only; 2009 onwards use different pinouts on the main transmission connector.)</li>
<li><strong>4L80E, 4L85E</strong> (Non-4x4, 1994 onwards only; 1991-1993 use a different main transmission connector.)</li>
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| Product Name | Haltech Nexus Ti4L Transmission Interface Kit - Suits GM 4L series |
|---|---|
| Brands | Haltech |
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If you are unsure, get in touch by emailing [email protected], messaging us on Facebook, or phoning us at +61 7 5645 1333 (8am to 2pm AET).
Why use a Haltech ECU?
It provides full control of fuel, ignition, boost and safety strategies that a factory ECU cannot manage on a heavily modified engine.
What transmissions are compatible with the Haltech Nexus Ti4L Transmission Interface Kit?
The Haltech Nexus Ti4L Transmission Interface Kit supports the GM 4L60E, 4L65E, and 4L70E (non-4x4, 2006-2008 only) as well as the 4L80E and 4L85E (non-4x4, 1994 onwards only). Be aware that 2009 and later models of the 4L60E and 4L65E use different pinouts.
Can I use the Ti4L kit with Elite or Platinum ECUs?
No, the Haltech Nexus Ti4L Transmission Interface Kit is not compatible with Elite, Platinum, or Legacy ECUs. It is designed specifically for use with Nexus Series ECUs and VCUs, including the Rebel LS.
How do I set up the Ti4L Transmission Interface Kit?
The Ti4L kit can be programmed using the NSP software or through the Haltech Connect App, which provides a simple setup wizard for Rebel LS users. Ensure you follow the setup instructions carefully for optimal performance.
What features does the Ti4L kit offer for transmission control?
The Ti4L kit includes smart long-term learning strategies via closed loop line pressure control, which allows the transmission to adapt and improve shifting performance over time as you drive.
Is there any special installation requirement for the Ti4L kit?
While the installation process is straightforward, ensure that you verify the compatibility of your specific transmission model and year. Proper wiring and connection to the Nexus ECU are essential for the kit to function correctly.