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2003 Buick Park Avenue Ultra 3.8L Mode Door
Posted to GM HVAC on 5/11/2009 3 Replies

Genisys scanner - in HVAC module PID for heat/ac/defrost voltage goes low and mode defaults to defrost/floor location, this occurs on its own. Operate servo with scanner - voltage goes high and all is well for a while, then goes low and mode defaults to defros...

3 Replies Received (View Replies)

  Related Documents & Media  2003 Buick Park Avenue Ultra

 
Message Closed w/FIX

car Vehicle Data

2003 Buick Park Avenue Ultra

VIN 1G4CU54133
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
AffectedMode Door
ConditionsIntermittent Door Operation Fails to Heat/Defrst
Message Closed w/FIX

car Vehicle Data

2003 Buick Park Avenue Ultra

VIN 1G4CU54133
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
AffectedMode Door
ConditionsIntermittent Door Operation Fails to Heat/Defrst