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.
CAN bus check: Operation
Systems connected to vehicle CAN bus and require communicating with the Subaru Select Monitor will be displayed.
List of the systems displayed does not mean the confirmation of communication. It displays presence or absence of the systems required. And, even when a system is equipped, it may not be displayed because of a communication trouble etc.
- Turn the ignition switch to ON.
- On [Start] screen, select [Diagnosis].
- On [Vehicle selection] screen, input the target vehicle information and select [OK].
- On [Main Menu] screen, select [CAN bus check].
- After a while, systems connected to vehicle CAN bus will be displayed.
- In communication for initializing, communication is confirmed in each control module.
- This function does not function normally, when the ignition switch is OFF.
- Optional control modules and control modules that are equipped differently depending on grades may not be displayed.
- For detailed operation procedures, refer to "Help" of application.
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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.