RAM 3500 Truck 2WD L6-5.9L DSL Turbo (2008)
doors. The A/C-heater control learns the mode-air door stop positions during the calibration procedure and will store a diagnostic trouble code (DTC)
for any problems it detects in the mode door actuator circuits.
The mode door actuators are diagnosed using using a scan tool See: Powertrain Management/Computers and Control Systems/Testing and
Inspection/Diagnostic Trouble Code Tests and Associated Procedures .
The mode door actuators cannot be adjusted or repaired and must be replaced if found inoperative or damaged.
