| Wire Color | Advanced Function | Connection Point | | :--- | :--- | :--- | | | Brake Switch Interlock | Positive side of brake pedal switch (to detect start attempt). | | Orange | CAN High / Low (Data Bus) | Splices into OBD-II port CAN H or CAN L lines. |
The is a technical blueprint that balances automotive electrical engineering with legal compliance. While understanding the diagram empowers you to speak knowledgeably with your mechanic or troubleshoot battery drain issues, it is not a DIY invitation. Ignition Interlock Device Intoxalock Wiring Diagram
An Intoxalock system consists of two primary hardware sections: the in-cab handheld breathalyzer unit and the under-dash engine control module (relay box). The system works fundamentally by acting as an electronic gatekeeper placed in series with the vehicle's starter circuit. | Wire Color | Advanced Function | Connection