Sierra 1500 2WD V8-4.8L (2007)
Engine Control Module: Locations
Engine Controls Component Views
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
