Moates – Xtreme ALDU1 and CABL1 – TunerPro RT TTS Datamaster TunerCat WinALDL and EFI Live V4

Description

Moates XtremeALDL + New CABL1 (RJ45)

GM & Holden OBD-I Datalogging and LT1 Reflash Interface

The Moates XtremeALDL with New-Style CABL1 (RJ45) is a professional-grade USB ALDL interface designed for GM and Holden OBD-I vehicles (pre-1995). It supports reliable datalogging across virtually all GM / Holden OBD-I ECUs, with reflash capability for 1994 LT1 applications where supported by software.

This interface is ideal for diagnostics, tuning analysis, legacy ECU support, and workshop use on TBI, TPI, Speed Density, and LT1 platforms.

Vehicle Compatibility

• ✅ GM & Holden OBD-I vehicles (pre-1995)

• ✅ Holden VN, VP, VR, VS (OBD-I Delco ECUs)

• ✅ TBI, TPI, and Speed Density systems

• ✅ 1994 LT1 – datalogging and reflash supported

• ❌ 1995 LT1 not supported

Note: Despite some vehicles using a 16-pin diagnostic connector, these systems remain OBD-I (ALDL), not true OBD-II.

Included

• Moates XtremeALDL USB Interface

• Moates New-Style CABL1 (RJ45 / Moates-specific connector)

ALDL Mode Selection (Switchable)

The XtremeALDL features a side-mounted selector switch to correctly configure the ALDL pull-up resistor, ensuring compatibility across different GM / Holden ECU families:

• 10k Mode (Pins A–B bridged)
  Required for:

  • Older TBI

  • TPI

  • Early GM / Holden OBD-I ECUs

• Open Mode (No A–B pull-up)
  Required for:

  • Newer Speed Density systems

  • LT1 OBD-I

  • Later 8192-baud ECUs

Correct switch selection is essential for stable communication and accurate datalogging.

Software Compatibility

Compatible with the following GM / Holden OBD-I software platforms:

• TunerPro RT – Datalogging and real-time analysis

• TTS Datamaster – GM / Holden OBD-I datalogging

• TunerCat (LT1 Reflash) – 1994 LT1 PCM reflashing

• WinALDL – Basic diagnostics and logging

• EFI Live V4 (OBD-I) – Datalogging on supported ECUs

Software compatibility depends on ECU definition availability.

Holden Cable / Adapter Requirement (Important)

Most Australian Holden OBD-I vehicles do NOT use the GM 12-pin ALDL connector.

• Holden vehicles commonly use a 16-pin diagnostic port wired for GM ALDL (OBD-I)

• This is not true OBD-II, despite the connector shape

What’s required for Holden:

• A Holden-specific OBD-I cable, or

• A 16-pin OBD-II to GM OBD-I (ALDL) adapter

The supplied GM 12-pin ALDL cable will not directly plug into most Holden vehicles.

Key Features

• Works with GM and Holden OBD-I vehicles

• Supports 160-baud and 8192-baud ALDL protocols

• USB interface compatible with modern Windows systems

• Switchable pull-up resistor for broad ECU coverage

• Suitable for diagnostics, tuning analysis, and legacy ECU support

• Genuine Moates Electronics hardware (no clones)

Support

Drivers, documentation, and setup guidance are available via the Moates Products Support Page.