# Simplesoft RP5-TY-101: mapping Toyota CAN interface messages

> Simplesoft RP5-TY-101 documents the function IDs and payload layouts used by a Toyota CAN interface box for aftermarket head units. Its tables cover responses such as door, tire-pressure, climate and radar state, plus head-unit requests for data and air-conditioning controls. A Python decoder is also present.

- Type: Case study
- Targets: Protocol
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-08
- Original resource: <https://github.com/zugetor/simplesoft-canbus-box-reverse-engineer>
- Primary source: <https://github.com/zugetor/simplesoft-canbus-box-reverse-engineer/blob/85394e4094f9352f2e64548c1df805e4b8904f53/README.md>
- Catalog page: <https://awesomerea.org/resources/simplesoft-rp5-ty-101-can-case/>
- Record JSON: <https://awesomerea.org/resources/simplesoft-rp5-ty-101-can-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/simplesoft-rp5-ty-101-can-case/index.md)

## Requirements & limits

- **Scope:** Simplesoft RP5-TY-101 CAN interface data is the documented scope.
- **License:** No licence file in the repository.

## Primary sources

1. <https://github.com/zugetor/simplesoft-canbus-box-reverse-engineer/blob/85394e4094f9352f2e64548c1df805e4b8904f53/README.md>

## More in Protocols

- [BMW G08 blower: probing LIN payload fields](https://awesomerea.org/resources/bmw-g08-blower-lin-case/index.md) · Case study
- [brscanner: a client for Brother DCP-1512E USB scanning](https://awesomerea.org/resources/brscanner-case/index.md) · Case study
- [SC75823: mapping the H-Buster HBD-2300MP display](https://awesomerea.org/resources/sc75823-hbd2300mp-case/index.md) · Case study
- [Gree-Wired-Proto: mapping the XK19 wired controller bus](https://awesomerea.org/resources/gree-wired-proto-case/index.md) · Case study
- [Nuga library: reconstructing NuPhy BYK916 keyboard control](https://awesomerea.org/resources/nuga-lib-case/index.md) · Case study
- [Razer Nari Battery Level: recovering a USB battery-voltage exchange](https://awesomerea.org/resources/razer-nari-battery-level-case/index.md) · Case study

## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.