Electronic Climate Control

[mikes93sho]

When I start my car the climate control comes on high but the display reads OFF. It eventually goes off only to come back on again. It does this constantly. Any ideas?

 

[Shoman594]

Classic BMC (Blower motor Control) problem its a switch under the glove box . it retails for like 150 but you can grab one from the junkyard

 

[mikes93sho]

I can here a clicking noise everytime it cuts in and out from under the passenger side dash. Is it a small silver cylinder?

 

[AutoXSHO]

Nope. It's a circuitboard mounted in a black plastic housing that has "Integrated blower control relay" printed on it.

John V

 

[Vito117]

Hey bud.
I just went to the ol junkyard this morning and got one off of a early 1990's Taurus wagon.
50 bucks is what I paid.
Works fine.
Beats paying $185.00 the dealers wanted for one!

 

[Tooles]

93 SHO ATX:
When I start my car the climate control comes on high but the display reads OFF. It eventually goes off only to come back on again. It does this constantly. Any ideas?

Pasted from shotimes.com:

Running the Auto AC self-test
--------------------------------------------------------------------------------
Thanks to Scott Patterson for this self test procedure for the AC controls :
ELECTRONIC CLIMATE CONTROL - SELF DIAGNOSTIC TEST

The control assembly will detect electrical malfunctions occurring during the self test.

1. Make sure the coolant temperature is at least 120F (49C).

2. To display error codes, push the OFF and FLOOR buttons simultaneously and then the AUTOMATIC button within 2 seconds. The test may run as long as 20 seconds, during which time the display will be blank. If the display is blank for more than 20 seconds, consult the No Error Code Found Diagnosis and Testing chart.

3. The Self Diagnostic Test can be initiated at any time with the resulting error codes being displayed. Normal operation of the system stops when the Self Diagnostic Test is activated. To exit the self test and restart the system, push the COOLER button. The self test should be deactivated before powering the system down.

ERROR CODE KEY

Code Condition

1.. Replace control head
2.. Blend door problem
3.. In-car temp sensor open or short
4.. Ambient temp sensor open or short
5.. Sunload sensor short
6.. 888 Test complete - no failures (all segments on)

 

[mikes93sho]

I ran the test before and it comes up fine

 

[93SHOATX]

How hard is it to swap out this Blower control????

 

[Shoman594]

not that hard, just a straight forward swap.