GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2007 🢒 Sierra - 4WD 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L60-E/4L65-E/4L70-E 🢒 Hydraulic Brake Component Views
Figure 1:

Left Side of the Engine Compartment
Object Number: 1714226 Size: LF
(1)Windshield Wiper Motor
(2)Power Brake Booster (JL4)
(3)Windshield Washer Solvent Heater (XA7)
(4)Fuse Block - Underhood
(5)Engine Control Module (ECM)
(6)Transmission Control Module (TCM) (- MYC)
(7)Brake Booster Vacuum Sensor (JL4)/Brake Master Cylinder Pressure Sensor (JL1)
(8)Brake Fluid Level Switch
Figure 2:

Park Brake Assembly
Object Number: 1860661 Size: LF
(1)Park Brake Release
(2)Park Brake Switch
(3)Dash Panel
(4)Park Brake Lever