My interior blower fan sometimes does not come on at all. Maybe 3 out of 5 starts I get fan functioning perfectly including speed control, sometimes I get zero fan. I don’t think this is the speed resistor, a regular failure, it is more likely to be a relay to the fan. The problem is I cannot find relay location to check. Mine is a RHD Alhambra III (2012). Can anyone tell me where the relay is located for this