That seems like an unlikely culprit - Saab 9-5 Bulletin Board - Saabnet.com
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That seems like an unlikely culprit
Posted by AeroEd [Email] (more from AeroEd) on Fri, 9 Jan 2015 18:47:19
In Reply to: try covering the sunlight sensor...., Mark from Toronto, Fri, 9 Jan 2015 15:41:55
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Granted, it could be causing a problem, but my guess of the function of the sunlight sensor would be:
It wouldn't effect the ACC determining if heating or cooling is required - if the setpoint is less than the cabin temp, you get cold air - if the setpoint is greater than the cabin temp, you get warm air.
It would effect the fan speed - if cooling is required and it's sunny, you get higher fan speeds.
Fan speeds would also be dependent upon the temp differential between setpoint and cabin temp.
Ed
2007 9-5 Aero SC [60th]
2004 9-3 Aero
2005 9-5 Aero
2005 9-5 Arc
2002 9-5 Aero SW (my 1st SAAB, bought new, but taken out by Bambi)
1999 9-5 SE(6) SW (brief interim between the '02 and the '07)
1999 9-5 SE(4) (taken out by daughter on icy road)
Posts in this Thread:
- Heat, or lack thereof . . . . ., pme , Thu, 8 Jan 2015 17:19:55
- Re: Heat, or lack thereof . . . . .UPDATE, pme , Thu, 5 Feb 2015 04:46:44
- Re: Heat, or lack thereof . . . . ., brick8, Fri, 16 Jan 2015 06:53:59
- Re: Heat, or lack thereof . . . . ., Mark from Toronto, Fri, 9 Jan 2015 17:15:27
- I would check the coolant temperature via OBD2, dmz789qqq, Fri, 9 Jan 2015 10:49:19
- Re: Heat, or lack thereof . . . . ., K W, Thu, 8 Jan 2015 18:51:54
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