Climate Control Question
#1
Climate Control Question
Seeing that it is currently 1 degree here in the NE (no joke), I guess this is a pretty appropriate topic. I searched a ton of threads and I'm still unsure of the answer, so I figured I would just post anyway. I was wondering if the auto climate control from a 99 would fit into a 98. I know there is the ambient temp button (I know the mod can be done on a 98 with the existing controls). Are the electrical connectors the same, or is there additional wiring for the AMB button? So essentially, is it a simple plug and play, or more involved for it to fit? Thanks in advance!
#2
Licensed to Spell
![](https://maxima.org/forums/images/Maxima_OTM.png)
![](https://maxima.org/forums/images/smilies/support.gif)
iTrader: (12)
Join Date: Feb 2001
Location: Murrieta (southern California)
Posts: 4,521
Seeing that it is currently 1 degree here in the NE (no joke), I guess this is a pretty appropriate topic. I searched a ton of threads and I'm still unsure of the answer, so I figured I would just post anyway. I was wondering if the auto climate control from a 99 would fit into a 98. I know there is the ambient temp button (I know the mod can be done on a 98 with the existing controls). Are the electrical connectors the same, or is there additional wiring for the AMB button? So essentially, is it a simple plug and play, or more involved for it to fit? Thanks in advance!
It should be a simple plug and play. The systems are identical, Nissan just didn't make available access to the AMB button until '99. Same system otherwise. What is your objective? To gain outside temp. display in a '98?
#3
thanks for the info - i figured it was probably the same. i need to replace my climate control unit, and i have the opportunity to get one from a '99 for a pretty big savings, but just wanted to make sure it would fit before buying.
#5
#8
Damn! But thanks for the reply, I appreciate it. I thought maybe the hookups and stuff were there. Oh well.
#9
#11
I do appreciate what the auto system does, they did put in quite of bit of intelligent into the system:
1. Keep the fan low when the car is cold then turn it up once it is warmed up.
2. When the interior and the exterior temperature has a large delta, it turns the fan to high.
3. When the sun load sensor get a direct hit, it moves air to the upper vents.
4. When the temperature is low, it moves air to the floor vents.
Oddly, this auto system controls very little of the refrigeration side of the system. It mainly moves air. The refrigeration side only reacts to what the thermal condition of the refrigerant. Not the controls, but the refrigeration system was what failed early in my otherwise pretty reliable car. One reason may be the auto system keeps the compressor on all the time.
1. Keep the fan low when the car is cold then turn it up once it is warmed up.
2. When the interior and the exterior temperature has a large delta, it turns the fan to high.
3. When the sun load sensor get a direct hit, it moves air to the upper vents.
4. When the temperature is low, it moves air to the floor vents.
Oddly, this auto system controls very little of the refrigeration side of the system. It mainly moves air. The refrigeration side only reacts to what the thermal condition of the refrigerant. Not the controls, but the refrigeration system was what failed early in my otherwise pretty reliable car. One reason may be the auto system keeps the compressor on all the time.
#12
Beside the 4 extra sensors, there is a positive airflow valve that always move air over the interior sensor.
I don't know if the auto a/c airbox is different from the manual airbox.
#13
searching the old threads, i came across some posts referencing a how-to for the auto conversion. i myself didn't come across it, but then again i wasn't really looking for it.
#14
Licensed to Spell
![](https://maxima.org/forums/images/Maxima_OTM.png)
![](https://maxima.org/forums/images/smilies/support.gif)
iTrader: (12)
Join Date: Feb 2001
Location: Murrieta (southern California)
Posts: 4,521
Yeah, that's a good idea. If you need to replace your '98 electronic climate control anyway, you might as well use a '99 and get the outside temp. button. It's a fun toy.
![Smilie](https://maxima.org/forums/images/smilies/smile.gif)
If I am not mistaken, the '98 and '99 I30s have the AMB button too.
#15
Licensed to Spell
![](https://maxima.org/forums/images/Maxima_OTM.png)
![](https://maxima.org/forums/images/smilies/support.gif)
iTrader: (12)
Join Date: Feb 2001
Location: Murrieta (southern California)
Posts: 4,521
I do appreciate what the auto system does, they did put in quite of bit of intelligent into the system:
1. Keep the fan low when the car is cold then turn it up once it is warmed up.
2. When the interior and the exterior temperature has a large delta, it turns the fan to high.
3. When the sun load sensor get a direct hit, it moves air to the upper vents.
4. When the temperature is low, it moves air to the floor vents.
Oddly, this auto system controls very little of the refrigeration side of the system. It mainly moves air. The refrigeration side only reacts to what the thermal condition of the refrigerant. Not the controls, but the refrigeration system was what failed early in my otherwise pretty reliable car. One reason may be the auto system keeps the compressor on all the time.
1. Keep the fan low when the car is cold then turn it up once it is warmed up.
2. When the interior and the exterior temperature has a large delta, it turns the fan to high.
3. When the sun load sensor get a direct hit, it moves air to the upper vents.
4. When the temperature is low, it moves air to the floor vents.
Oddly, this auto system controls very little of the refrigeration side of the system. It mainly moves air. The refrigeration side only reacts to what the thermal condition of the refrigerant. Not the controls, but the refrigeration system was what failed early in my otherwise pretty reliable car. One reason may be the auto system keeps the compressor on all the time.
#16
#21
AMB sounds sweet! anyone want to do a straight up trade for a 97 unit?![doublethumbsup](https://maxima.org/forums/images/smilies/dblthumb2.gif)
I dont really care much for auto climate control... I use it on manual 100% of the time anyways.
Possible to add AMB to a 97? Cause the changed the unit in 98, right?
![doublethumbsup](https://maxima.org/forums/images/smilies/dblthumb2.gif)
I dont really care much for auto climate control... I use it on manual 100% of the time anyways.
Possible to add AMB to a 97? Cause the changed the unit in 98, right?
Last edited by LeVeL; 02-01-2008 at 02:20 PM.
Thread
Thread Starter
Forum
Replies
Last Post