Bought an ELM327 wifi and it blew one of my 5a fuses and gave me a panic moment when I thought I'd fried the ecu.

got another bluetooth version off the bay for a fiver and downloaded an app obd doctor pro to my wIndows phone , and it works great for the total of £12.99 , not tried any clearing of codes but have no reason to think it wouldn't work , good for looking at fuel trims which I wasn't able to see on the IID tool I have

ETA

it clears codes as well as showing pending codes