Service function guideCoolant Bleeding With a Scan Tool

This guide covers the complete process of bleeding a vehicle's cooling system using a scan tool to command the electric coolant pump and purge trapped air, a procedure that has become essential on modern cars with complex cooling circuits. It is written for working mechanics and experienced DIYers who already understand cooling system fundamentals and want a repeatable, professional method rather than guesswork. You will learn how to prepare the vehicle, access the correct service functions, run the pump through the required cycles, verify a successful bleed with temperature and heater checks, and troubleshoot when air remains trapped. By the end, you will be able to perform this job confidently across a wide range of makes and confirm the result before the vehicle leaves the bay.