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Heated seat - thermistor or module

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo's stylish, distinctive P2 platform cars sold as model years 2001-2007 (North American market year designations).

2001 - 2007 V70
2001 - 2004 V70 XC (Cross Country)
2004 - 2007 XC70 (Cross Country)
2001 - 2009 S60
2003 - 2007 S60 R
2004 - 2007 V70 R

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frebor72
Posts: 27
Joined: 24 March 2017
Year and Model: 2002 V70
Location: Sweden

Heated seat - thermistor or module

Post by frebor72 »

No heated seat on drivers side. I’ve done some measurements and found that there are different ohn readings of the thermistor (yellow leads) between driver and passenger side. 4.6 kOhm on the non functional side and 9.6 kOhm on functional side. Is that the provlem and causes the module to shot down the power to the heating pads? Or can it still be the module?

xHeart
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Joined: 3 December 2011
Year and Model: 2.0/3.2
Location: Great Lakes - USA
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Post by xHeart »

Would a heater module interchange help with isolating the cause?
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Past: Golden Retriever | 2001 V70XC | 1997 Volvo 854 | 1989 Volvo 740 GL | 1979 Volvo 240

frebor72
Posts: 27
Joined: 24 March 2017
Year and Model: 2002 V70
Location: Sweden

Post by frebor72 »

That’s a good idea. I was just curious to know if the difference in resistence could make the heater to stop working completely.

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