'01 LW300 HVAC panel replace

Discussion in 'Saturn L-series' started by Oppie, Jan 7, 2008.

  1. Oppie

    Oppie Guest

    '01 LW300 HVAC panel replace

    I replaced the entire HVAC control panel last year. The blower selector
    switch was fried and I couldn't find the switch alone - only came as part of
    the entire panel - at $170...

    Oh well, that's water under the dam. Now I notice that the A/C compressor
    comes on (a/c request) one click CCW of floor heat (on the right side
    selector knob). The old panel had the compressor kick in one click CCW of
    Defrost+Floor heat.

    The vent selector 'switch' is really only a potentiometer- the wiper of
    which supplies a control voltage to a servo motor that controls the air
    routing. That part is working properly. The control voltage also drives some
    digital control -also within the hvac panel - that generates the a/c request
    signal that feeds the BCM. The threshold of where this signal comes in is in

    I looked in the service manual to see if there was some calibration for this
    but could not find anything. Anybody have any feedback on this problem?? I
    can always try to re-assemble the old panel and swap it out into the new
    module - just messy.

    Thanks - Oppie
    Oppie, Jan 7, 2008
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