How do I know if I have a bad multi function switch

The only way to determine if the multifunction switch is faulty is to determine if all of the components would work otherwise if the switch was not influencing operation. It would seem to me since all of those items are related to one thing – the switch – unless there was some kind of wiring concern otherwise, the switch and its wiring connector would be the most likely cause of concern. Physical inspection and circuit testing is required. https://repairpal.com/auto-repair-near-me Click the link or call us at 877-913-1554. We'll gladly find you a certified RepairPal shop in your area.