Tail Light fault, How To Repair (basic electrical diagnosis)

This Renault Master had been into the garage with a intermittent light fault, after a hefty bill the fault returned, here’s how I fixed the problem. Basic stuff
Stop/Tail Light bulb on Amazon, https://amzn.to/2RRn4C4

• #autos_vehicles
• #light_bulb
• #fault
• #electrical_diagnosis
• #car
• #fix
• #repair
• #bmw
• #renault_master