To remove the HVAC Control Module, first, turn the battery off, then thoroughly remove the i/p accessory trim plate, and remove the retaining screws from the HVAC Control Module before making the actual withdrawal of the module. For mounting, mount the HVAC Control Module onto the i/p trim plate and fasten using the retaining screws that should be tightened to 1.6n.m (14 lb in). Then, connect the electrical connectors into the HVAC Control Module and replace the i/p accessory trim plate. Reconnect the battery and then turn the engine on and let it run for at least a minute. It is essential not to change any controls on the HVAC Control Module while self-calibrating, as an interruption can result in an incorrect hvac operation; do not test the engine while running so that calibration is achieved.