Remove the heater control switch decorative cover. Remove the retaining screws. Remove the wiring harness. Reverse the process to install the new switch.
Where is heater control switch
The 1992 Acura heater control relay switch can be found beneath the passenger side dashboard. The heater control relay switch will be a few inches above the kick plate.
Disconnect and isolate the negative battery cable.Remove the center bezel from the instrument panel.Remove the four screws that secure the A/C-heater control to the instrument panel.Pull the A/C-heater control away from the instrument panel far enough to access the connections on the back of the control.Disconnect the vacuum harness from the A/C-heater control.Disconnect the wire harness connectors from the A/C-heater control and remove the blower switch......
there is no cut off switch on a 1999 gmc sonoma
Remove the temperature control switch wiring harness. Remove the temperature control switch retaining screws. Reverse the process to install the new temperature control switch.
if your switch is located on the dash on the left side on the steering column, you will need to remove the access panel(s) under the column and carefully remove the wiring plug from the back of the switch. You should then be able to very carefully squeeze the tension tangs on the top and bottom of the switch (again, from behind the dash) and carefully push the switch through the hole. If the switch is located on the heater control panel above the radio, you must remove the entire radio assembly, then remove the heater control panel being VERY careful to not break the clips that hold the control cables to the control panel. There will be very little room to move the panel around until you free the cables from the panel. Once you have the cables free, you can remove the tension washers to remove the vacuum lines and remove the wiring harnesses. You may also need to remove the control panel from the face plate to access the screws that hold the defrost switch. Reverse the procedure for reinstallation.
It could be the high speed heater motor relay is stuck on or the switch itself is broken.
The heater blower switch and the electrical plug attached to it may be at fault. Remove the heater control unit from the dash and inspect the plastic electrical plug attached to the blower switch, you may see it has melted. The switch and plug is available from your local auto parts store.
It adjusts the heat in the car so you can control your AC and heat to the temperature you like.
Remove the center switch console. remove the 4 spring clips holding the square heater motor housing and remove the housing. Inside the heater motor housing Remove the two spring clips holding the heater motor in Remove wiring connections and then remove the heater motor. Install new heater motor and installation is in the reverse order of above.
you have to remove the whole control panel assembly. pull off dash front panel, unscrew the panel, unplug the wires and remove th cable. the blower switch mount from the back of the panel