Pinpoint Test K: Incorrect/Erratic Direction of Airflow From Outlets
Climate Control System
Pinpoint Test K: Incorrect/Erratic Direction of Airflow From Outlets
Refer to Wiring Diagram Set 54, Manual Climate Control System for schematic and connector information. Diagrams By Number
Refer to Wiring Diagram Set 55, Automatic Climate Control System for schematic and connector information. Diagrams By Number
Normal Operation
Under normal operation, to rotate the mode door actuator, the HVAC module supplies voltage or ground to the DEFROST/PANEL/FLOOR mode door actuator motor through circuit CH228 (YE/GY), and supplies ground or voltage through circuit CH229 (WH/BU). depending on desired rotation direction.
The mode door actuator feedback resistor is supplied a ground from the HVAC module through circuit RH111 (GY/BU) and a 5-volt reference voltage on circuit LH111 (BN/WH). The HVAC module reads the voltage on the mode door actuator feedback circuit VH436 (YE/VT) to determine the mode door actuator position by the position of the actuator feedback resistor wiper arm.
B11E7:11-B1086:12:
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Defrost/panel/floor mode door actuator
- HVAC module
- Stuck or bound linkage or door
PINPOINT TEST K: INCORRECT/ERRATIC DIRECTION OF AIRFLOW FROM OUTLETS
K1-K3:
K3-K4:
K4 Continued:
K5-K6:
K6-K7:
K7-K8:
K8-K9:
K9-K10:
K11-K13:
