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AC not working. Replaced ECC and blower motor already

Volvo 850 Made from 1993 to 1997, this Volvo line was available in both a wagon and a sedan, both with were graced with several trim levels.

AC not working. Replaced ECC and blower motor already

  #1  
Old 04-25-2019, 11:09 PM
Galaxy850Sunny's Avatar
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Location: A-town ,TX
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Default AC not working. Replaced ECC and blower motor already

Hello all
My 850 '95 turbo A/C is not working at all.
First issue when it stop blowing was back in December was fixed after I replaced the blower motor assembly itself.AN ordeal in itself.
Fast foward till now, stop working. the AC is now dead again. I decided to replace the ECC with a used $40 off ebay. The culprit may be the used ECC itself is bad.
every new for these parts are $120+ it seems

I also pulled these OBD-1 codes for the AC itself on B-1 port.
1-4-1 Faulty signal from driver's side temp. selector switch
1-4-3 Faulty signal from passengers side temp. selector switch
2-1-1 drivers side damper motor position sensor open circuit shorted to 12 volts
3-2-5 recirculation damper motor position sensor open circuit shorted to 12 V
4-1-1 blower fan seized or drawing excessive current
4-1-3 no control volt at drivers interior inlet fan shorted to earth
4-1-4 driver side interior temp sensor shorted to earth
4-1-6 no control volt at passenger side interior temp sensor inlet fan

Sounds LIKE my AC is toast. Any idea from here? any assistance would be greatly appreciated.
 
  #2  
Old 04-26-2019, 10:55 AM
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does the AC compressor kick on at all? Do you know if it has a charge? These other faults tend to point to the ECC system's wiring or a part that is shorting - check out volvotips.com for some ideas on the fault analysis.
 
  #3  
Old 04-26-2019, 08:03 PM
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I hear the compressor kick on several times but no air flow. The ac air control lights on the control ***** flash several times.
It could may well be the used ECC module is just as bad and defective.
 
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