For 1990-2009 cars

Each of the following service procedures may require programming or setup procedures to be performed on the HVAC control module or HVAC actuators.

### HVAC Control Module Replacement

If the HVAC control module is replaced it must be programmed with the latest operating software and vehicle calibrations. Refer to Service Programming System (SPS).

### HVAC Control Module Reprogramming

Do not reprogram the HVAC control module, unless directed by a service procedure, or a service bulletin.

Reprogram HVAC Control Module--Refer to Service Programming System (SPS).

### Actuator Replacement

If an actuator is replaced, the following procedure must be performed:

• | Re-Calibrating Actuators--Refer to Actuator Recalibration for the manual system.

• | Re-Calibrating Actuators--Refer to Actuator Recalibration for the automatic system.