Heater fan/DRL malfunction in Pontiac Grand Prix 2000?

  • Thread starter Thread starter SBB
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SBB

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I have this imtermittent condition when the blower stops working my automatic headlights won't work either. The only way to turn them on is via manual ON switch.
Also sometimes, again, when the blower would stop working, the automatic headlights would only work when blower speed control switch is set to OFF.
Where would I look for this issue: at the HVAC or DRL module? Wiring? Please be as much specific as possible.
 
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