I have a 96 T and C. With both front and rear air. Also the front air has the dual air controls so both passenger and driver can set it to their own temp. The problem is that when the front heat is on the passenger side is always cold? Why is that? Driver side is fine and rear heat is fine but passenger side is cold no matter what? Please help.

I have a 96 T and C. With both front and rear air. Also the front air has the dual air controls so both passenger and driver can set it to their own temp. The problem is that when the front heat is on the passenger side is always cold? Why is that? Driver side is fine and rear heat is fine but passenger side is cold no matter what? Please help.


I would run a recalibration test on it.
It may show a code or problem or may fix it.
Any lights flashing on it or has the battery been changed?