Vacuum explanation, just in case you didn't know:

Brown w/ blue stripe goes to key switch for shutoff.

Green w/ yellow stripe goes to climate control.

Black w/ yellow stripe goes to cruise control actuator.

Yellow w/ gray stripe goes to vacuum reservoir in tunk.
Yellow goes to driver's door for locks.
Check valve provides vacuum from reservoir to door locks without leaking to other accessories when the engine is off.

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Rick Miley
2014 Tesla Model S
2018 Tesla Model 3
2017 Nissan LEAF
Former MB: 99 E300, 86 190E 2.3, 87 300E, 80 240D, 82 204D Euro
Chain Elongation References