GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2004 🢒 TopKick C-Series (Conventional) C4/C5 🢒 Brakes 🢒 Park Brake 🢒 Park Brake System Component Views
Figure 1:

Park Brake Switch
Object Number: 816885 Size: SH
(1)Park Brake Switch
Figure 2:

Front Left of the I/P
Object Number: 826805 Size: LF
(1)Radio
(2)Park Brake Valve (JE4)
(3)HVAC Control Assembly
(4)Overdrive Defeat Switch (Allison® LCT)
(5)Headlamp Switch
(6)Instrument Panel Cluster (IPC)