When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Glad you got it working. Sounds like you might have been connecting up your power supply in reverse polarity, that'd explain the lack of voltage on the bench but voltage present in the car
Nope. If you had power on one side of D10 but not the other, but it works fine in your car then you must have had your power supply hooked up backwards.