Hyundai Santa Fe (2006 year). Manual — part 703
HA -190
HEATING, VENTILATION AND AIR CONDITIONING
1
2
3
4
6
9
10
12
13
14
15
16
17
18
19
20
21
22
23
24
*
* *
*
25
26
*
*
3
4
5
6
7
3. Motor (Cool)
4. Motor (Warm)
5. Sensor reference voltage(+5V)
6. Potentiometer signal
7. Potentiometer ground
Ω
Ω
SCMHA6564L
4) Is the measured resistance within specifications?
YES
Go to "Check for short to ground in harness" procedure.
NO
Check for open in signal harness. Repair as necessary and go to "Verification of Vehicle Repair" procedure.
2.
Check for short to ground in harness.
1) Ignition "OFF"
2) Disconnect Driver Air Mix Actuator.
3) Measure resistance between terminal "3,4" of Driver Air Mix Motor and chassis ground.
Specification : Approx. ∞ Ω
*
*
3
4
5
6
7
3. Motor (Cool)
4. Motor (Warm)
5. Sensor reference voltage(+5V)
6. Potentiometer signal
7. Potentiometer ground
Ω
Ω
SCMHA6565L
4) Is the measured resistance within specifications?
YES
Go to "Visual/Physical Inspection " procedure.
NO
Check for short to ground in signal harness. Repair as necessary and go to "Verification of Vehicle Repair"
procedure.
BLOWER AND A/C CONTROLS (AUTOMATIC)
HA -191
VISUAL/PHYSICAL INSPECTION
E991C1F7
1.
Check actuator.
※
Check if Driver Air Mix Actuator works properly through ACTUATION TEST.
1) Ignition : ON
2) Connect Scantool and select " ACTUATION TEST" mode and press [F1]
DRIVER AIR MIX DOOR - DRIVE 50%
STRT
STOP
PRESS [STRT], IF YOU ARE READY!
DURATION
METHOD
CONDITION
UNTIL STOP KEY
ACTIVATION
IG. KEY ON
ENGINE RUNNING
1.3 ACTUATION TEST
Fig 3 : Selecting "ACTUATION TEST" mode.
Fig. 3
EQBF525D
3) Does Driver Air Mix Actuator work properly?
YES
Go to "Component Inspection" procedure.
NO
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.
COMPONENT INSPECTION
E076DD0D
1.
Check actuator motor.
1) Ignition "OFF"
2) Disconnect Driver Air Mix Potentiometer.
3) Verify that the temperature actuator operates to the hot position when connecting 12V to the terminal "3" and
grounding terminal "4".
4) Verify that the temperature actuator operates to the cool position when the connections are reversed.
HA -192
HEATING, VENTILATION AND AIR CONDITIONING
(-)
(+)
*
*
3
4
5
6
7
3. Motor (Cool)
4. Motor (Warm)
5. Sensor reference voltage(+5V)
6. Potentiometer signal
7. Potentiometer ground
SCMHA6566L
5) Does the actuator work properly?
YES
Go to "Check potentiometer" procedure.
NO
Substitute with a known-good actuator and check for proper operation. If the problem is corrected, replace ac-
tuator and then go to "Verification of Vehicle Repair" procedure.
2.
Check potentiometer
1) Ignition "ON"
2) Connect Driver Air Mix potentiometer.
3) Measure voltage between terminal "6" and "7" of Driver Air Mix potentiometer while operating the temp. switch.
Specification : Refer the specifications in fig 3)
*
*
3
4
5
6
7
3. Motor (Cool)
4. Motor (Warm)
5. Sensor reference voltage(+5V)
6. Potentiometer signal
7. Potentiometer ground
v
SCMHA6567L
Door position
Voltage (6-7)
Error detecting
MAX. Cooling
0.3 ± 0.15V
Low voltage : 0.08V or less
MAX. Heating
4.7 ± 0.15V
High voltage : 4.9V or more
BLOWER AND A/C CONTROLS (AUTOMATIC)
HA -193
4.7V
2.5V
0.3V
WARM
COOL
AIR MIX Potentiometer
Output
voltage
Fig 3) Specifications : Voltage value of air mix potentiometer as a function of position of setting temperature.
Fig. 3
EQBF521J
4) Is the measured voltage within specifications in fig3?
YES
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
Substitute with a known-good actuator and check for proper operation. If the problem is corrected, replace ac-
tuator and then go to "Verification of Vehicle Repair" procedure.
3.
Check A/C Control Unit.
1) Engine "ON"
2) Connect A/C Control Unit.
3) Measure voltage between terminal "13" and "14" of A/C Control Unit while operating the temp. switch.
Specification :Approx. 12V
16. Motor
17. Motor
1
12
15
17
19
20
21
22
2
3
4
5
6
7
8
9
10
11
13
14
16
18
1
12
15
17
19
20
21
22
2
3
4
5
6
7
8
9
10
11
13
14
16
18
v
SCMHA6568L
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