Silverado 1500 4WD V8-60L Hybrid (2009) Engine Control Module - TSB Page 6027
1 - Brake Master Cylinder Piston Position Sensor
2 - Brake Fluid Level Switch
3 - Fuse Block - Underhood
4 - Battery
5 - Engine Control Module (ECM)
6 - Fuse Block - Auxiliary
7 - Battery Current Sensor
8 - Windshield Wiper Motor
Rear of the Engine Compartment Components (Diesel)