I've been told that problem w my AC is problem w.

1. Drive side: REMOVE AIR MIX SERVOMOTOR
a. Remove the lower No.1 panel.
B. Remove the lower LH panel insert.
C. Disconnect the connector.
D. Remove the 3 screws and the servomotor.
2. INSPECT AIR MIX DAMPER POSITION SENSOR CIRCUIT
3. INSPECT AIR MIX CONTROL SERVOMOTOR CIRCUIT

4. Passenger side: REMOVE AIR MIX SERVOMOTOR
a. Remove the blower unit.
B. Disconnect the connector.
C. Remove the 3 screws and the servomotor.
5. INSPECT AIR MIX DAMPER POSITION SENSOR CIRCUIT
6. INSPECT AIR MIX CONTROL SERVOMOTOR CIRCUIT
7. Driver side: INSTALL AIR MIX SERVOMOTOR
a. Install the servomotor with the 3 screws.
B. Connect the connector.
C. Install the lower LH panel insert.
D. Install the lower No.1 panel.
8. Passenger side: INSTALL AIR MIX SERVOMOTOR
a. Install the servomotor with the 3 screws.
B. Connect the connector.
C. Install the blower unit.

Dont know your abilities but here is the procedure for both sides

Roy