Low Beam Headlamps Will Not Turn On

Test 1 - 4:

Test 5 - 6:

SYMPTOM
LOW BEAM HEADLAMPS WILL NOT TURN ON

POSSIBLE CAUSES
- Headlamp switch function
- Low beam relay
- Low beam relay output CKT open
- Fuse
- Low beam relay output CKT shorted
- BCM headlamp MUX inop