2013 ford transit motorhome no rear indicators

[Berry151]

Hi there I'm new to site I have a ford transit 2013 motorhome no rear indicators at all. Front and side repeaters flash fast and hazards flash normal not on rear tho nothing all other lights on rear work fine I've cleaned terminals changed bulds checked fuses any help really appreciated thanks

[fortyeight]

try the lamps with a test lamp to see if power is there,when testing put the earty of the test lamp to the chassis or some other good earth not the lamp,if power is there then you probably have a bad earth,