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
Click to open/download.
- Open PDFCPC5 Wiring Schematic — NAFTA base/pdf/716212459-CPC5-Base-NAFTA-Wiring-Schematic.pdf
If the preview doesn’t load in your browser, use “Open PDF”.
- Open PDFCPC3 Evo Wiring Schematic — Euro V/pdf/639044371-EuroV-CPC3-Evo.pdf
If the preview doesn’t load in your browser, use “Open PDF”.
- Open PDFCPC4 Wiring Schematic — GHG14 (VIH)/pdf/491830824-GHG14-Common-Powertrain-Controller-CPC4-Vehicle-Interface-Harness-VIH.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.