Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
System Outline
The CAN has two lines which operate as a pair and which communicate with operating voltage. the CAN has excellent data speed and error detecting capacity. It consists of vehicle control systems such as the hybrid vehicle control ECU, engine control module, yaw rate sensor, battery ECU, power steering ECU, skid control ECU, steering sensor, data link connector 3 and gateway ECU. The gateway ECU has communication circuits corresponding to different types of communication data. Different types of communication data can be shared among communication parts after it goes through gateway ECU.
This system is active for the following systems:
* ABS
* Air Conditioning
* Audio System
* Back-Up Light
* Combination Meter
* Cruise Control
* Engine Control
* EPS
* Headlight
* Hybrid Vehicle Immobiliser System
* Multi-Display
* Push Button Start System
* Shift Control System
* Smart Key System
* Theft Deterrent
* TOYOTA Hybrid System
* TRAC
* VSC
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.