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Old 07-12-2011, 09:06 AM   #1 (permalink)
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hi ,i have noticed that my ac button light flashes whether the ac is on or off and the ac only blows cold when i am in motion ,as long as the vehicle has stopped moving for approx. 2-3 minutes the ac will blow regular air,can anyone tell me what the prob may be and is it a do it your self fix or take it to the pros?my vehicle is a 2003 1600cc suzuki grand vitara made in japan ,sold in Barbados, any help would be appreciated .
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Old 07-12-2011, 09:27 AM   #2 (permalink)
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Quote:
Originally Posted by jigga_man411 View Post
hi ,i have noticed that my ac button light flashes whether the ac is on or off and the ac only blows cold when i am in motion ,as long as the vehicle has stopped moving for approx. 2-3 minutes the ac will blow regular air,can anyone tell me what the prob may be and is it a do it your self fix or take it to the pros?my vehicle is a 2003 1600cc suzuki grand vitara made in japan ,sold in Barbados, any help would be appreciated .
The flashing a/c light indicates there is a code set in the ac controller - take it to Simpsons and have them check the code for you.

There is a way to get the code without the scan tool, but it is a fairly complex procedure with a 100w light at specific distance over the sun sensor and controls set to specific positions at specific time intervals.

The lack of cooling when stationary is most likely a non functional a/c condensor fan (the one in front of the radiator).
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Old 07-12-2011, 09:33 AM   #3 (permalink)
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ok, will do thanks
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Old 07-16-2011, 10:57 AM   #4 (permalink)
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i got my mechanic to run a diagnostic check on it and he said it had a b1215 error or something like that, i cant remember exactly what i saw on the printout of the diagnostic machine,but since he checked it i only saw the light flash once sine then but i have noticed that on the passenger side the air doesn't come out cold out of the vents on that side and if i am park for a while the ac will start to get warm but when i'm driving it would constantly be cold , what could be this problem?
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Old 07-19-2011, 08:28 PM   #5 (permalink)
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You could make it easier for us to assist you - I don't see any B12xx codes in climate control - but there is a B1512, which is an Air Flow Control Actuator (Position Sensor) and It's Circuit Malfunction - which just might correspond with the problem you decribe of not getting cold air on the passenger side.

As for the only cooling whilst driving - see the last sentence in my previous reply.
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Old 07-20-2011, 08:14 AM   #6 (permalink)
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the mechanic said that if the actuator may be sticking that may be why i am getting not so cold air at times cause the hot air is mixing with the cold air , is there a way to go in and check if the part is sticking or it can only be done by diagnostic machine?Also what would be the part number of the actuator , so i can look it up online to see if it is worth getting it from my local dealer or from outside.
I also noticed that this morning when i started the vehicle for the first time this morning that the a/c worked good , the fan was cutting in and out well (like every 30 secs or so ) and the cabin felt nice and cold , when i returned home i put the car in park and it was still working well until i turned up the dial that blows the a/c harder , that is when i realized that the air became hotter , so i got out to check if the fan at the front wasn't blowing anymore but yes it was still blowing in fact it wasn't cutting in or out anymore it was constantly on but still i was not getting any cold air the the cabin, are these symptoms of a bad of a Air Flow Control Actuator (Position Sensor) ?
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Old 07-20-2011, 09:51 AM   #7 (permalink)
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The system is only removing so much heat energy - if you increase the blower fan speed, what you're doing is moving more air over the evaporator in the same space of time - the end result is the same amount of heat is removed from a larger volume of air, so the actual temperature of the air leaving the evaporator is higher.

That is normal.

The air flow actuator is a motor that controls a "door" that determines where the air flows - there are probably more than one of them - one will control where the air exits the evaporator housing, whether it goes to the windscreen vents, the eyelevel dash vents, or the floor vents, another will control the air entering the evaporator housing, is it recirculated cabin air, or is it fresh air, and another will control if the air flows over the heater core or not, as well as what percentage of the air flows over the heater.

I can't tell you for sure what is in there, my GV is an earlier model and does not use the same HVAC system - all the error code is telling you is that the actuator door(s) are not moving the way they should, when instructed to do so by the BCM - it could be a stuck/sticking door, it could be a bad sensor - I would suspect that the only way to determine what is stuck (if anything) is to diassemble the evaporator housing and check the doors.
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Old 07-20-2011, 11:05 AM   #8 (permalink)
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how and where do i start to disassemble the evaporator to check the doors?
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Old 07-20-2011, 02:21 PM   #9 (permalink)
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The evaporator itself is behind the glove box, the intake door will be visible as soon as you remove the glove box - the heatur plenum with the other doors is in the center behind the dash - you may have to remove the dash to get to it.

Given the nature of the questions you have been asking, I feel this one is beyond your capabilities.
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