A/C issue

[Holden1412]

Hi, I’ve got a 2008 Ve ss commodore with the dual zone ac. I’ve run into a problem with the air temps coming out of the vents, the passenger side blows cold air but the driver side and rear just blows ambient temp. I’ve read around on the forums and currently have some of the dash out to access the actuators but all seem to be working fine? The drivers side does blow hot air when chosen but just doesn’t blow cold air. hcm problem maybe?

 

[Fu Manchu]

In this case, with out high end diagnostic tools available, your best bet is to get a suitable module from a wrecker and swap it to see.

I guess you could test the volts to the actuator when the function is selected. Or just unscrew the actuator and see if it operates.

The fault could also be in the facia dials.

The fault could also be with an internal door in the HVAC