VE Commodore HVAC Actuators - B0228 and B0418

As is tradition, with the onset of summer, those air-conditioning problems that have been ignored now become a priority. The Heating, Ventilation and Air Conditioning (HVAC) systems in the VE series of Commodores seem to have some common problems that this video will explain.
2006-2013: Holden Commodore VE
2006-2013: Holden Caprice / Statesman WM
The actuators consist of 12 Volt DC motors with reduction gears that are used to move the various flaps inside the HVAC unit, to adjust the temperature and direction of airflow in the vehicle’s cabin. Their position is adjusted via the voltage supplied from the HCM.
Some common issues are the reduction gears inside the actuators strip or crack with age, and the HCM can no longer work out their position. In some cases, a power interruption can make the HCM forget the actuator position setting. A common issue that causes fault codes B0228 and B0418 can be a broken Air Inlet / Recir Door (GM part #92246499)
See the December 2021 issues of VACC's TechTalk magazine for diagnostic steps, HVAC relearn procedures and removal and replacement steps.
VACC MotorTech members have access to an extensive technical information resource, a Technical Advisory Service and library staffed by experienced technicians, along with a comprehensive online resource, Tech Online, Tech Times Guide, Tech Estimate and Tech Talk magazine, plus online resources from Haynes - Haynes Pro and Haynes AllAccess, allowing you to repair and service more makes and models than your competition.
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