Vauxhall Vivaro only 1 drl working when side lights turned on no side light and no daytime running lights

Try swapping the drl bulb / led with the one that's working or test and see what shows .

Hi I tried that and still nothing

Have you tested for power at faulty DRL ?, might need scanning with Tech 3 or similar

No power at bulb, agreed scan tool next, was hoping to figure it out before calling in an Auto tech

Thought it may be a fuse related fault but you have checked them 2018 Instrument panel fuse box diagram: Opel/Vauxhall Vivaro B (2018) Assignment of the fuses in the instrument panel (2018) № Circuit 1 Battery backup (with electronic key system) 2 Adaptations 3 Adaptations 4 Vehicle battery (with electronic key system) 5 Additional heating and ventilation / Air conditioning system 6 Supplementary heating and ventilation system 7 Electric exterior mirrors / Addi‐ tional adaptations 8 Heated exterior mirrors 9 Radio / Multimedia / Electric exterior mirrors / Diagnostic socket 10 Multimedia / Trailer hitch 11 Courtesy lights / Battery discharge protection 12 Right-hand high beam / Lefthand low beam / Sidelights / Right-hand daytime running light 13 Hazard warning flashers / Turn and lane-change signals 14 Central locking 15 Left-hand high beam / Righthand low beam / Tail lights / Left-hand daytime running light 16 Front fog lights / Rear fog lights / Number plate lighting 17 Alarm / Horn / Lighting / Wiper 18 Instrument cluster 19 Heating and ventilation system 20 Rear window wiper / Windscreen washer pump / Horn 21 General battery 22 Reversing lights 23 Brake switch 24 Fuel injection / Starter 25 Airbag / Steering column lock 26 Passenger power window 27 Power steering 28 Brake lights 29 Battery backup (with electronic key system) 30 Service display 31 Cigarette lighter / Power outlet 32 Heating and ventilation system 33 Brake lights / ABS / Immobiliser 34 Interior lighting / Air conditioning 35 Starting with electronic key system 36 Rear window wiper 37 Warning chimes 38 Load compartment power outlet 39 Driver power window 40 Rear power outlet 41 Starting / Body control module 42 Heated seats 43 Tachograph 44 Windscreen wiper 45 Heating / Air conditioning