check your electrical connections

[Pete M]

this was the hvac plug in the XJ at the 'yard.

 

 

[ghetdjc320]

Looks like excessive current draw. 

[pizzaman09]

Is that the resistor plug?

[Pete M]

1 hour ago, pizzaman09 said:

Is that the resistor plug?

 

the fan speed switch's end of that harness, so right under the radio.

[pizzaman09]

26 minutes ago, Pete M said:

 

the fan speed switch's end of that harness, so right under the radio.

Oh wow, that is scary.