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2007 GMC Sierra 2500 HD SLE 6.0L Mode Door operation
Posted to GM HVAC on 11/11/2019 3 Replies

Hello, We have the HVAC complaint of not switching from defrost to vent to floor. (stuck on defrost) Scan data showed command of 12 but actual was at 220. BCM DTC B3779. Replaced actuator with OEM and performed the calibration with the Tech2. The problem w...

3 Replies Received (View Replies)

  Related Documents & Media  2007 GMC Sierra 2500 HD SLE

 
Message Closed w/FIX

car Vehicle Data

2007 GMC Sierra 2500 HD SLE

VIN 1GTHC24K17
Engine6.0 L / 8 cyl / GAS
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedMode Door Operation
Message Closed w/FIX

car Vehicle Data

2007 GMC Sierra 2500 HD SLE

VIN 1GTHC24K17
Engine6.0 L / 8 cyl / GAS
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedMode Door Operation