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Old 11-18-2006, 03:23 PM   #11
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I just pulled the glovebox off and I couldnt see the actuators, unless I was looking in the wrong area.
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Old 11-18-2006, 03:26 PM   #12
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Quote:
Originally Posted by markwb
Quote:
Originally Posted by AirShuttle164
Blower works fine, a/c works fine... no hot air though.
When you're selected to heat mode, blower on high speed, is there sufficient air flow form the heater outlets (floor)? I'm trying to determine if the mode door is not shifting to heat mode from any of the other ventilation modes?
I failed to mention that earlier... I have zero air flow on the floor outlets.
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Old 11-18-2006, 05:57 PM   #13
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Ive ran the car in bi-level mode with recirc mode on...and it seems to be blowing warm air out, but I cant really tell since it is 80 degrees outside. I ran the a/c first to cool the car down then did this.
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Old 11-18-2006, 07:04 PM   #14
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It looks like you have to remove the left sound insulator panel & knee bolster from under the driver side dash to get a look at the mode actuator. Watch to see if it is operating when you select heat mode from another ventilation mode. It is driven by a 12 vdc stepper motor. Look at actuator linkages to ensure they are connected & secured, electrical connectors also.
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Old 11-18-2006, 09:27 PM   #15
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It does nothing...on a side note...was digging over on the passenger side...found one of the electrical harnesses disconnected...hasnt done much...car is warmer though. I think I may be getting somewhere and leaning more towards the mode actuator.
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Old 11-18-2006, 09:47 PM   #16
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Try recalibrating the actuators. Here is the procedure.

Turn OFF the ignition.
Remove the battery positive voltage circuit fuse of the HVAC Control Module. It is labeled HVAC BATT, it'* a 10 amp fuse and it'* located in the rear fuse block (the one under your rear seat cushion).
Important: The module memory will not clear if the battery positive voltage circuit fuse is installed in less than 60 seconds.

Wait 60 seconds.
Install the fuse.
Start vehicle and allow to run for 3 minutes.
During this time the actuators will be calibrating themselves, do not use the HVAC controls during these 3 minutes.

And thatí* it, it may help with the heat or it may not? But it is a procedure that won't cost you a thing to try. Are you familiar with the rear fuse block? To gain access to it you need to remove the rear seat bottom cushion from the car. It'* not hard at all. Just firmly grip the leading edge of the bottom seat cushion on one side and give it a forceful tug up, then do the same on the other side. It simply snaps back in place when you get to that point.
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Old 11-18-2006, 10:29 PM   #17
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Does the HVAC need to be off during those 3 minutes?
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Old 11-18-2006, 10:33 PM   #18
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It does not specify, so I don't think it matters. Just doesn't want to see input commands changing while it calibrates...so no moving temp or mode switches.
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Old 11-18-2006, 10:40 PM   #19
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Ok thanks...tried it both ways, still nothing. Something still tells me it lies within the mode actuator, as the only mode it operates in is panel mode, bi level doesnt work, defrost doesnt work and floor doesnt work.
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Old 11-18-2006, 10:52 PM   #20
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The mode actuator controls WHERE the air comes out. The air temp actuator controls what the TEMP will be. Which one is not moving?

The air temp actuator is behind the glove box, the mode actuator is visible when you remove the left sound insulator and knee bolster.
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