# Why does a shop manual have two separate brake bleeding procedures? **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** hyundai\ **Created:** [January 17, 2021, 8:22am UTC](https://community.cartalk.com/t/why-does-a-shop-manual-have-two-separate-brake-bleeding-procedures/174259 "2021-01-17T08:22:06Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![jim\_173505](https://avatars.discourse-cdn.com/v4/letter/j/7ba0ec/32.png) [@jim\_173505](https://community.cartalk.com/u/jim_173505)\ **Post date:** [January 17, 2021, 8:22am UTC](https://community.cartalk.com/t/why-does-a-shop-manual-have-two-separate-brake-bleeding-procedures/174259/1 "2021-01-17T08:22:06Z")
Is the method with the pro scan tool just for bleeding the ABS unit? Do you need to open the solenoid with a scan tool if using one of those Motive pressure bleeder systems that attach on the master cylinder? Also why is the bleeding sequence different in both? I would like to use the Motive bleeder as I can never have someone (my own schedule is at fault too) available at the same time for the two person method. ![bleed](https://global.discourse-cdn.com/cartalk/original/3X/d/b/dbdc6bc0ae9544b24b5ff1693ab30b47be5f226c.jpeg) 2007 Sonata ---
**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\ **Post date:** [January 17, 2021, 6:11pm UTC](https://community.cartalk.com/t/why-does-a-shop-manual-have-two-separate-brake-bleeding-procedures/174259/2 "2021-01-17T18:11:47Z")
If the brake system hasn’t been opened to replace a component, then normal bleeding is performed If the brake system has been opened, then the ABS unit has to be bled also, which requires a scan tool. Tester