Heat Vent sticking? FAQ
#1
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It's cold up here in Chicago tonight and coming home this evening I really needed the heat.
I don't seem to have any blowing at all into the seat wells. The front panel vents and the defroster are fine. When I call for the lower vents nothing happens, it just keeps blowing out of the panel vents.
Relay?
I searched the forum with no luck.
Thanks!
I don't seem to have any blowing at all into the seat wells. The front panel vents and the defroster are fine. When I call for the lower vents nothing happens, it just keeps blowing out of the panel vents.
Relay?
I searched the forum with no luck.
Thanks!
#2
#3
#4
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In that case I would try this. IF you have access to AC control module (right side)
or the Evap./Htr. Assem. (Left side) check these pins
AC Control Module .............................Evap/Htr assem
AC 1-12 ...............................................AC 7- 8...............+12 if active Drives servo
AC 1-25 ...............................................AC 7- 7...............+12 if active Drives servo
AC 2-13 ...............................................AC 7- 6............... Position 3.5v = open
That way you can tell if the problem is the servo or somewhere up stream.
I have not had to work on the AC system so I don't know how difficult access will be.
or the Evap./Htr. Assem. (Left side) check these pins
AC Control Module .............................Evap/Htr assem
AC 1-12 ...............................................AC 7- 8...............+12 if active Drives servo
AC 1-25 ...............................................AC 7- 7...............+12 if active Drives servo
AC 2-13 ...............................................AC 7- 6............... Position 3.5v = open
That way you can tell if the problem is the servo or somewhere up stream.
I have not had to work on the AC system so I don't know how difficult access will be.
#7
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I do know that on my 95xj6 it has a self diagnostic check when you press a few buttons on the console. I can do this by pressing and holding the AUTO & RECIRCULATION buttons and turn the ignition on, then press the AUTO button and the stored trouble will display. Now I do not know that it will work on the xk8.
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#8
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I do know that on my 95xj6 it has a self diagnostic check when you press a few buttons on the console. I can do this by pressing and holding the AUTO & RECIRCULATION buttons and turn the ignition on, then press the AUTO button and the stored trouble will display. Now I do not know that it will work on the xk8.
#9
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I just got this today and have not had a chance to try it out. I will try to test it tonight and will let you know or you can tell me. It is the same as my 95 xj6.
1. Ignition off - hold down AUTO and RECIRCULATION buttons and
switch on the ignition
2. press AUTO button - if ZERO shows, there's no stored
error codes
3. press FACE button repeatedly to scroll through stored
fault codes
4. press FACE and HEATED REAR WINDOW buttons together to
clear a fault code.
5. repeat step 4 if there's more than one code
6. press FAN button to exit Interrogation Procedure
It would seem Jaguar doesn't make this info generally known.
So what's new?
Good luck.
1. Ignition off - hold down AUTO and RECIRCULATION buttons and
switch on the ignition
2. press AUTO button - if ZERO shows, there's no stored
error codes
3. press FACE button repeatedly to scroll through stored
fault codes
4. press FACE and HEATED REAR WINDOW buttons together to
clear a fault code.
5. repeat step 4 if there's more than one code
6. press FAN button to exit Interrogation Procedure
It would seem Jaguar doesn't make this info generally known.
So what's new?
Good luck.
#10
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Tried it on an '04 XK8 this afternoon.
It works..........
Fred
Looked in the JTIS. The DTCs that apply to the AC have, in their fault description, a "panel code "listed.
I will assume for now that is the number displayed on the AC control panel.
For instance:
DTRC B1264 says " Footwell servo drive circuit malfunction Panel code 46"
It works..........
Fred
Looked in the JTIS. The DTCs that apply to the AC have, in their fault description, a "panel code "listed.
I will assume for now that is the number displayed on the AC control panel.
For instance:
DTRC B1264 says " Footwell servo drive circuit malfunction Panel code 46"
Last edited by Fjk; 12-22-2009 at 04:30 PM. Reason: more data
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#16
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I just got this today and have not had a chance to try it out. I will try to test it tonight and will let you know or you can tell me. It is the same as my 95 xj6.
1. Ignition off - hold down AUTO and RECIRCULATION buttons and
switch on the ignition
2. press AUTO button - if ZERO shows, there's no stored
error codes
3. press FACE button repeatedly to scroll through stored
fault codes
4. press FACE and HEATED REAR WINDOW buttons together to
clear a fault code.
5. repeat step 4 if there's more than one code
6. press FAN button to exit Interrogation Procedure
It would seem Jaguar doesn't make this info generally known.
So what's new?
Good luck.
1. Ignition off - hold down AUTO and RECIRCULATION buttons and
switch on the ignition
2. press AUTO button - if ZERO shows, there's no stored
error codes
3. press FACE button repeatedly to scroll through stored
fault codes
4. press FACE and HEATED REAR WINDOW buttons together to
clear a fault code.
5. repeat step 4 if there's more than one code
6. press FAN button to exit Interrogation Procedure
It would seem Jaguar doesn't make this info generally known.
So what's new?
Good luck.
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