The mode actuator is an electronic device that incorporates a motor and feedback
potentiometer. The HVAC control module controls the mode position by sending a control
signal to the actuator. The signal value is dependent upon desired mode selected by
the vehicle occupants. As the actuator moves, the potentiometer produces the actual
door position signal that is sent to the HVAC control module. The HVAC control module
continues to command the actuator to move until the desired and actual values are
equal. The door directs airflow through the outlets as selected by the vehicle occupants.
DTC Parameters
| • | The ignition is in the RUN position |
| • | RED 130 for short or open |
| • | GRN 119 for short or open |
| • | Open grounds BLK -- circuit 550 |
Diagnostic Aids
| • | If a DTC is in history or there is an intermittent condition, perform
the test shown by wiggling wiring and connectors. This will cause malfunction to appear. |
| • | Visually inspect actuator connector and harness for damage, corrosion
or water intrusion. |
| • | Inspect connector halves for poor mating or terminal not fully seated
in the connector body -- backed out. |
| • | Inspect for adequate terminal tension, mis-routed harness, rubbed-through
wire insulation and broken wire inside the insulation. |
| • | Inspect for improperly formed or damaged terminals. All connector terminals
in the related circuit should be carefully reformed or replaced to ensure proper contact
tension. |
DTC B0130
