Ignition Interlock Device Intoxalock Wiring Diagram Jun 2026

While specific wire colors vary by vehicle make and model, the standard logic remains consistent: 1. The Starter Interrupt This is the most critical connection.

Under the Magnuson-Moss Warranty Act, the manufacturer cannot void your warranty unless the IID wiring caused the specific damage. However, cutting the starter harness will void that specific component's warranty. Ignition Interlock Device Intoxalock Wiring Diagram

Connected to a power source that is active only when the ignition is in the "ON" or "RUN" position. White (Starter In): While specific wire colors vary by vehicle make

While the basic Intoxalock wiring diagram uses 6 standard colors (Red, Black, Yellow, White, Green, Blue), modern vehicles require advanced integration with CAN bus and brake interlocks. Never attempt to install or modify this wiring yourself unless you are a certified Intoxalock technician. Improper wiring can trigger a tamper detection, extending your mandatory interlock period by 6–12 months. However, cutting the starter harness will void that

The standard interface wiring harness protruding from the main control module breaks down into several specialized leads. Technicians map these directly to the vehicle's electrical lines: Wire Color / Group Label / Function Connection Point Starter In Ignition Switch Side Captures the 12V crank signal when the key turns. Thick Yellow (x2 Dual) Starter Out Starter Solenoid Side Feeds the filtered crank signal to the engine starter. Solid Red VCC / Constant Power 12V Battery Feed Provides uninterrupted baseline power to the device. Solid Green Key On / Ignition Switch / Accessory Line

Typically a pair of wires connected to the side of the cut starter wire coming from the ignition switch. Yellow (Starter Out):