RAM 1500 Truck 4WD V8-5.7L VIN D (2005)
Turn the Mode Select control to each door position for a minimum of 30 seconds and check for airflow from the corresponding vents.
Q: Does air flow from the correct vents for each door position?
YES: Test Complete.
NO: Remove the Mode Door Actuator 1 and the Mode Door Actuator 2 from the A/C-Heater Housing Assembly. By hand, one door actuator at a
time, attempt to rotate the door actuator in both directions. Also, inspect for disconnected, missing, or broken door actuator linkage, and bound up,
warped, worn, and damaged doors. Repair as necessary. Perform BODY VERIFICATION TEST - VER 1. See: Computers and Control
Systems/Testing and Inspection/Diagnostic Trouble Code Tests and Associated Procedures/Verification Tests/Body Verification Test
6. CHECK PASSENGER BLEND DOOR FUNCTION
Start the engine.
Turn the Blower control to the high speed position.
Turn the Mode Select control to the panel position.
Move the Passenger Blend control to the full hot position.
Move the Passenger Blend control to the full cold position, in 25% increments, while checking for a change in airflow air temperature coming
from the passenger's panel vents.
Q: Does the airflow air temperature change with respect to the position of the blend control?
YES: Test Complete.
NO: Remove Passenger Blend Door Actuator from A/C-Heater Housing Assembly. By hand, attempt to rotate the door actuator in both
directions. Also, inspect for disconnected, missing, or broken door actuator linkage, and a bound up, warped, worn, and damaged door. Repair as
necessary. Perform BODY VERIFICATION TEST - VER 1. See: Computers and Control Systems/Testing and Inspection/Diagnostic Trouble
Code Tests and Associated Procedures/Verification Tests/Body Verification Test
7. CHECK DRIVER BLEND DOOR FUNCTION
Start the engine.
Turn the Blower control to the high speed position.
Turn the Mode Select control to the panel position.
Move the Driver Blend control to the full hot position.
Move the Driver Blend control to the full cold position, in 25% increments, while checking for a change in airflow air temperature coming from
the driver's panel vents.
Q: Does the airflow air temperature change with respect to the position of the blend control?
YES: Test Complete.
NO: Remove Driver Blend Door Actuator from A/C-Heater Housing Assembly. By hand, attempt to rotate the door actuator in both directions.
Also, inspect for disconnected, missing, or broken door actuator linkage, and a bound up, warped, worn, and damaged door. Repair as necessary.
Perform BODY VERIFICATION TEST - VER 1. See: Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code Tests
and Associated Procedures/Verification Tests/Body Verification Test
8. CHECK RECIRCULATION DOOR FUNCTION
Start the engine.
Turn the Blower control to the high speed position.
Press the MAX control off (LED not Illuminated).
Press the MAX control on (LED Illuminated). The sound of the air flowing through the ducts should get louder as the recirculation door opens to
bring in recirculated air.
Q: Does the sound of the airflow get louder after pressing the MAX control on?
YES: Test Complete.
NO: Remove Recirculation Door Actuator from A/C-Heater Housing Assembly. By hand, attempt to rotate the door actuator in both directions.
Also, inspect for disconnected, missing, or broken door actuator linkage, and a bound up, warped, worn, and damaged door. Repair as necessary.
Perform BODY VERIFICATION TEST - VER 1. See: Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code Tests
and Associated Procedures/Verification Tests/Body Verification Test
Blend/Mode/Recirc Door Operation Improper - Single-Zone
BLEND/MODE/RECIRC DOOR OPERATION IMPROPER (SINGLE-ZONE)
