defrost problem

lava

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#1
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MAKE:chevrolet
MODEL: cruze
YEAR
:2013
MILES: 130000
ENGINE
:1.4
DESCRIBE ISSUE....the air will not blow on the front window it stopped while driving in a snow storm it started to come full force out of the dash vents and comes out on the floor as well
 

lava

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#2
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MAKE:chevrolet
MODEL: cruze
YEAR
:2013
MILES: 130000
ENGINE
:1.4
DESCRIBE ISSUE....the air will not blow on the front window it stopped while driving in a snow storm it started to come full force out of the dash vents and comes out on the floor as well
 

Gus

wrench
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#3
Well, on older cars, I would say a vac problem......but you have an electrical mode actuator......so, either you have a bad control head, a bad actuator, wiring problem, or something has jammed your mode door.....there are a couple things you can do....

One remove the actuator, and physically grab the linkage/rod, and move it while the blower is on low, and see if you can change the flow in the vehicle......if you can, the mode door is not jammed and the linkage is not broken.....

You have a five wire connector.......One is power(orange), the other four are grounds to move the actuator to the four various positions........with the harness disconnected, attach a test light to the orange wire and one of the other four wires.......as you rotate the mode knob between the various position(heat, bi-level, vent, defrost), the test light should only light in one of those positions.....attach the orange to another wire and rotate the knob, and it should only light in a different position......and so on for the other two wires....if that is so, then the wiring and control head are ok, and you need an actuator......if not, then it's either the wiring or the control head......

Nickb2 is good at posting wiring diagrams, perhaps he can help with this....
 
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#4
Mode door froze up on our 04 Cavalier when left out in the cold, first step was to get it in a warm place to thaw it out. My wife forced the mode control knob and bend the cable. Fortunately our local NAPA had one in stock, was 12 bucks, and about a five minute job to replace it, could call this the good old days.

Cruze has all BCM controlled actuators, circuit diagram is attached, like Gus said, could be the actuator, not too bad at rockauto.com, but I would get it in a warm place first to see if it thaws out first. Don't mention if you nave the LT or LTZ model, former is a so-called manual system, latter is an automatic climate control system, this one is for the manual. Also have a cabin filter in these things.

While the fresh air intake under the windshield has small vents, inside there are two large openings where a mouse can crawl in and give problems on the left and right sides. Some had to add chicken wire screen to keep these critters out.

Cruze shop manual sets new records for the absolute worse shop manual I have ever read, little bits and pieces of circuit diagrams scattered all over some 3,000 pages. And loaded with constant repeated safety information, 99.9% is common sense.
 

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Gus

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#5
NickD, that problem was caused by a foam seal that would come loose, and jam the mode door(TSB on this)........the result was turning the mode knob, caused the cable to kink....
 
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#6
Nebulous explaining on my part in comparing the old technology with the new, Gus, with the Cavalier, was a foam problem. But with the Cruze, that electrical actuator is so weak, they have to kill the blower motor first before switching the mode door. And they have been known to freeze up.

Can also say, they replaced one kind of problem with another. Another thing missing in the Cruze is screws, have to unsnap all that stuff to take it apart and hope you don't break off tabs. And a heck of a lot easier to snap them back together than to unsnap them. Just a lot more miserable for maintenance.