Inspection of HVAC Control Module and its Circuit Malfunction: Notes

WARNING: This page is about a different car, the 2004 Suzuki Aerio. However, it is still accessible from the selected car via links, so may be relevant.

HVAC control module and its circuits can be checked at HVAC control module wiring couplers by measuring voltage.

CAUTION: HVAC control module can not be checked by itself. It is strictly prohibited to connect voltmeter to HVAC control module with couplers disconnected from it.