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The Haltech I/O Expander 12 allows the user the ability to increase the functionality of their Haltech ECU by using the Haltech CAN system which is fitted to all Platinum Series ECU’s, the I/O Expander 12 instantly makes available 12 additional user configurable inputs and outputs.

Simply plug in the CAN cable and start using your extra I/O

• 4 x AVI – Analogue Voltage Inputs (0-5V)*1
• 4 x DPI – Digital Pulsed Inputs ( 0-5V – Max Freq 300Hz) *1
• 4 x DPO – Digital Pulsed Outputs (5V / 12V Pull ups – Max 1A) *1
• Broadcast rate of 20mS to the Haltech ECU for each channel.
• User definable “Safe State” for each output in case of loss of communications or error.
• Switchable pull up resistors on AVI channels for use with temperature sensors.
• Power and Status LED’s
• Powered by CAN bus. External power only required if DPO’s are to be used.
• Multiple I/O Expander Boxes can be used on certain Haltech ECU’s

ECU Suitability:
• Sprint 500 – (maximum 1 box*3)
• Sprint RE – (maximum 1 box*3)
• Sport 1000/2000 – (maximum 1 box*3)
• Sport GM – (maximum 1 box*3)
• Pro Harness*4 – (maximum 1 box*3)
• Pro Plug-in ECU’s*4 – (maximum 2 boxes*2)

Power Requirements:
Source: 8.6 to 16.5 Volts DC
Consumption: 50mA @ 12Volts DC

*1.  Functions available may vary depending on ECU used. Full function listing on pages 2-4 of the Specification Sheet.

*2. Optional CAN Hub required to be purchased if more than one device is to be fitted to the Haltech CAN Bus. Haltech Part # HT059990.

*3. Supports Box A Only.

*4. Supported in 1.10 and above firmware only.

Each I/O Box includes CAN Cable and the Plug and Pins to build your own wiring harness. Choose to add the Flying Lead Harness as an option below for an 8 ft labeled color coded harness to attach your sensors. 

Also be sure to choose the correct box type. This feature allows you to use more than one I/O box. Two I/O Box A's will not work together, your ECU will not be able to determine which one to read. Haltech addresses Box B so that it can be used with Box A giving you a total of 24 additional Inputs and Outputs.  

Available Options:

Box Type:



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