Hi, I was wondering if someone could help me.
I;ve got a Ford Puma which has the age old heater problem (constantly blowing hot air) so I think it may be the HCV.
However I took off the electrical connector and applied a multimeter to test - when i used the chassis as a ground i got just under 12v (11.79) which was constant when i turned the heater from midway to cold. Out of interest I tried with the heater on hot and put the negative into the connector (this connector is just the two wires) and got a reading of around 3v.
Does this sound right? I'm not too familiar with multimeters so may have had the wrong setting or something?!