If the rear air conditioning system in your first generation (2001, 2002, 2003, 2004, 2005 and 2006) Acura MDX (or Honda Pilot) has stopped working suddenly, you probably need to change a faulty power transistor (also known as the thermal resistor) for the rear blower motor fan assembly. Check out my DIY tutorial for the procedure (with the compatible replacement part numbers) by clicking on the text link or thumbnail image below.
2001-2006 Acura MDX Rear A/C Transistor Replacement Guide
