I removed my heater/ac box, replace evaporator, and took out the complete dash to work on the two ac units under the dash.
have it all back together but to my chagrin, nothing comes on not, right nor left, nothing is activated when I try to turn on the fans!! no lights on controller nothing. Both R & L fuses are OK, no "blown" fuse messages so what could be wrong?? oh yes all the connectors are properly connected. Thanks for any help, am desperate want to get back on the road. By the way I did swop out control units when it did not work and had same results!

 

Here is a REALLY old TSB but it might help

I keep a repaired one in stock for MY 1992 XJ6

bob gauff

 

Thanks but doubt it is the control module plugged in 3 different ones same result

 

The control module and the control panel are 2 different units. The Module is the 'grand piano' looking unit on the right side of the HVAC housing and the Control Panel is the unit with the knobs and buttons.

Did you replace the control panel or the control module????????????????????????????

bob gauff

 

thanks for the clarification, I swopped out the control panel (on top of clock in sky slope)
and also I double checked that all 5 connectors wereplugged together firmly on the module.
The 3 white ones on the keyboard of the piano and the 2 smaller ones.

 

and also


i double checked that all 5 connectors wereplugged together firmly on the module.

The 3 white ones and the 2 smaller ones.