Component Inspection

Component Inspection

1. Check DR Direction Actuator.
1. Check actuator motor
(1) Ignition "OFF".
(2) Disconnect DR Direction Actuator.
(3) Connect (+) terminal of battery to terminal 3 of DR Direction Actuator and (-) terminal to terminal 4.
(4) Verify that the temperature actuator operates to the DEF position.
(5) Verify that the temperature actuator operates to the VENT position with reverse connecting. ((+) to 4 and (-) to 3)




(6) Dose the actuator work properly ?
YES
1) Go to "Check potentiometer" procedure.
NO
1) Substitute with a known-good actuator and check for proper operation. If the problem is corrected, replace actuator and then go to "Verification of Vehicle Repair" procedure.
2. Check actuator potentiometer
(1) Ignition "ON".
(2) Connect DR Direction Actuator.
(3) Measure voltage between terminal "5" and "6" of DR Direction Actuator while operating the temp switch.
A. Specification: Refer the specifications in fig 3)








(4) Is the measured voltage within specifications in fig 3) ?
YES
1) Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "Verification of Vehicle Repair" procedure.
NO
1) Substitute with a known-good actuator and check for proper operation. If the problem is corrected, replace actuator and then go to "Verification of Vehicle Repair" procedure.