0
What could be the problem in a Lexus sc400 when a heater ac unit lights up but none of the buttons work and nothing displays on the screen?
Wiki User
∙ 12y ago
My friend had the same problem with his sc400. Says it's usually a relay located not too far away from your left foot when your driving. Sry about not being too specific but it should be a good place to start..
I had this happen in my SC300. Check your fuses including A/C AND cigarette lighter fuse.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
Is it possible to flush a heater core to bring it back to life?
Yes, if there is nothing else wrong with it, and the problem is only clogging.
The heat is not coming out of your car at all the dials are switched on and in the red area but nothing is coming out you was wondering what the problem could be your rear defroster works but nothing?
it is probably a bad heater core
Heater blower wont work on 1996 rodeo blower motor works getting power to it but no ground cheched the heater control switch has ground coming to it but nothing else?
there is a condenser on the heater housing it has 2 bolts holding it into the housing, just below the heater motor, they go bad, i had the same problem on a 95 rodeo.
How do you reset the heater and gas displays both went blank at same time on a 1990 Cadillac DeVille?
you replace the body control module. the 16 volt output for these displays is inop
How do you trouble shoot a heater problem?
Not enough info. Car heater? House heater? Gas? electric? Water?
What is wrong with the heater controls on a 91 Buick Regal when the heater controls wont switch to defrost vent etc even when the lights on the buttons iluminate?
Many of these controls are Vacuum operated. You may have a problem where the "Main" Vacuum line has broken. See if you can locate this line by using your manual and make sure that it is intact. TommyTrouble
Why do I have heat at heater core inlet hose and outlet hose but nothing in cab?
Is the blower working? Could the heater core be "blown? If the controls are electronic, there could be a bad relay in them. It honestly sounds like a problem for the dealership will need to track down.
1994 Chevrolet cavalier changed heater core and thermostat what next no heat?
im having the same problem with my 1994 I've replaced the heater core,thermostat,radiator,i checked the coolant, and it's not over heating or nothing and still no heat lol
Why do the buttons on the heater ac control not work sometimes on your 1988 98 Regency?
because ur car is broke
How do you change the heater settings from Fahrenheit to centigrade in a Volkswagen Passat?
You press the Auto and Econ buttons at the same time.
97 f250 heater only works on high is this a problem with the heater resisitor block?
Possibly
What happens if you do not bypass a failing heater core?
Nothing
