Hyundai GENESIS COUPE BK 2010 Manual page 3362

5. Is the measured resistance within specification?
▶ Go to "Check short to ground in harness" as follows.
▶ Check for open in harness.
▶ Repair as necessary and then go to "Verification of Vehicle Repair" procedure.
■ Check short to ground in harness
1. Ignition "OFF".
2. Disconnect Driver air mix actuator and A/C control unit main harness connector.
3. Measure resistance between WARM terminal of Driver air mix actuator harness connector and chassis ground.
4. Measure resistance between COOL terminal of Driver air mix actuator harness connector and chassis ground.
Specification : Infinity
5. Is the measured resistance within specification?
▶ Go to " Component inspection " procedure .
▶ Check for short to ground in control harness.
▶ Repair as necessary and then go to "Verification of Vehicle Repair" procedure.
Component Inspection
■ Check passenger air mix actuator
1. Ignition "OFF".
2. Disconnect Driver air mix actuator and A/C control unit main harness connector.
3. Connect (+) terminal of battery to WARM(+) of Driver air mix actuator and (-) terminal to COOL(-) .(Component side)
4. Verify that the temperature actuator operates to the cool position.
5. Verify that the temperature actuator operates to the warm position with reverse connecting.( WARM(+) and COOL(-)
) .(Component side)
Specification : Refer the specifications in fig.1
FIG.1) ※ Function of the actuator motor according to terminal connection type. (observe safety regulations)
Actuator harness
Battery terminal
6. Is "Door position" display near the specified value?
▶ Go to "Check potentiometer" procedure.
▶ Substitute with a known-good Driver air mix actuator and check for proper operation. If the
problem is corrected, replace Driver air mix actuator and then go to "Verification of Vehicle
Repair" procedure.
■ Check potentiometer
1. Ignition "OFF".
WARM(+)
12 V
Ground
COOL(-)
Ground
12 V
Door position
Max.warm
Max.cool