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Reference library

Technical

Wiring diagrams, pinouts, and technical detail for installers and shops. For the repair process itself, see How it works.

Wiring diagrams & PDFs

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  • CPC5 Wiring Schematic — NAFTA base
    /pdf/716212459-CPC5-Base-NAFTA-Wiring-Schematic.pdf
    Open PDF

    If the preview doesn’t load in your browser, use “Open PDF”.

  • CPC3 Evo Wiring Schematic — Euro V
    /pdf/639044371-EuroV-CPC3-Evo.pdf
    Open PDF

    If the preview doesn’t load in your browser, use “Open PDF”.

  • CPC4 Wiring Schematic — GHG14 (VIH)
    /pdf/491830824-GHG14-Common-Powertrain-Controller-CPC4-Vehicle-Interface-Harness-VIH.pdf
    Open PDF

    If the preview doesn’t load in your browser, use “Open PDF”.

  • Wiring diagrams

    Pin-to-pin and harness references for the platforms we support. Content is being added here first.

  • Connector & pinout notes

    Lab-verified notes on common connectors, key pins, and what to verify before and after install.

  • Application notes

    Short technical write-ups on communication, programming context, and platform-specific quirks.