AC/Heater Control Module
The AC/heater control module is a small computer under your dashboard that monitors and operates heating, ventilation, and air conditioning systems of the vehicle.
A failing AC/heater control module can cause the HVAC system to malfunction, resulting in incorrect air distribution or improper temperature control.
AC/heater control module troubleshooting
- A thorough diagnosis of the AC/heater control module is required before replacing it. All trouble codes stored in its memory should be reviewed to determine the root of the problem.
- The AC/heater control module should be upgraded with new software if it is available to avoid program mistakes and related issues. If any problem appears, you should contact the manufacturer to check if there is any technical service bulletin related to the problem.