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Climate control dead S70

posted by  someone claiming to be Ed M. on  Thu Aug 9 10:30 CST 2007 [RELATED]

I have a 1998 S70 with 198,000 miles. The climate control system is dead--no AC, no heat, no blower running--nothing. The fuses are okay. Was running fine until a couple of days ago. Any ideas where to start looking?








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    Climate control dead S70

    posted by  KlausC on  Thu Aug 9 11:05 CST 2007
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Fri Oct 24 10:15 CST 2014
    [RELATED]

    There is a large relay in the fuse tray. If there are no lights in the ECC, the wires may have come loose from the back. Pull the radio out and then yank the ECC straight out, it will be hard :)

    Bet it's a relay,

    Klaus
    --
    Please answer, we need to know if the advice is good or bad. The 164 has a new home, all I am left with are 2 turbos :)








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      Climate control dead S70

      posted by  someone claiming to be Ed M. on  Fri Aug 10 08:36 CST 2007 [RELATED]

      Klaus,

      Thanks for the reply. I checked out the large relay and it is okay. There are no flashing lights on the ECC. I also pulled out the ECC and the wires were okay. Any other ideas would be greatly appreciated. If the compressor or the blower is dead, would this cause the problem?

      Ed







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        Climate control dead S70

        posted by  KlausC on  Fri Aug 10 09:33 CST 2007
        Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
        last visit: Fri Oct 24 10:15 CST 2014
        [RELATED]

        The system will only work if the blower is working. If the blower speed switch died, and it is stuck in pos 0, no ECC.
        You can check the blower by supplying 12V from the battery directly to the leads on the motor. You will be able to see it without taking off the glove box. Next to the blower is the resistor pack which regulates the speed of the blower. If that is getting voltage and none to the blower, that's a problem.

        There was a very recent thread regarding the fan speed switch, look for it.

        Klaus
        --
        Please answer, we need to know if the advice is good or bad. The 164 has a new home, all I am left with are 2 turbos :)







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