Hyundai Santa Fe (2006 year). Manual — part 708
HA -210
HEATING, VENTILATION AND AIR CONDITIONING
NO
Substitute with a known-good A/C Control Unit and check for proper operation.
If the problem is corrected, replace A/C Control Unit and then go to "Verification of Vehicle Repair" procedure.
VERIFICATION OF VEHICLE REPAIR
ED389E33
After a repair, it is essential to verify that the fault has been corrected.
1.
Connect scantool and select "Diagnostic Trouble Codes(DTCs)" mode and then clear DTC.
2.
Operate the vehicle and monitor the DTC on the scantool.
3.
Are any DTCs present?
YES
Go to the applicable troubleshooting procedure.
NO
System is performing to specification at this time.
BLOWER AND A/C CONTROLS (AUTOMATIC)
HA -211
DTC B2415 AIR MIX MOTOR (PASSENGER)
COMPONENT LOCATION
E8B6758A
Temperature Control Actuator
SCMHA6700L
GENERAL DESCRIPTION
ECC6FEEE
Temperature control actuator located at heater unit, regulates the temperature by the procedure as follows. Signal from
control unit adjusts position of temp. door by operating temp. motor and then temperature will be regulated by the hot/cold
air ratio decided by position of temp. door.
DTC DESCRIPTION
E9CEC9DA
The A/C controller sets DTC B2415 if the air mix actuator doesn’t move to intended position within 40sec (In this case,
A/C controller try to move temp. door for 2sec. 3 times, every 20 sec. before setting DTC).
DTC DETECTING CONDITION
EF3351EF
Item
Detecting Condition
Possible cause
DTC Strategy
• Voltage check
Threshold value
• < 0.1V
Detecting time
• 0.3 sec
FAIL SAFE
-
• Poor connection of
connected part
• Open circuit in harness
• Short circuit in harness
• Faulty driver Air Mix
potentiometer
• Fault A/C Control Unit
HA -212
HEATING, VENTILATION AND AIR CONDITIONING
SPECIFICATION
EF5771E4
4.7V
2.5V
0.3V
WARM
COOL
AIR MIX Potentiometer
Output
voltage
EQBF521B
MONITOR SCANTOOL DATA
E080E9AB
1.
Connect scantool to Data Link Connector(DLC).
2.
Engine "ON"
3.
Monitor the "Passenger Air Mix Potentiometer" Parameter on the Scantool while operating temp. switch.
1.2 CURRENT DATA
FIX
SCRN FULL PART GRPH HELP
14.0 C
12.0 C
12.0 C
13.0 C
0.00 V
22.7 %
51.76 %
255
HEATER WATER TEMP.SNSR
IN-CAR TEMP.SENSOR
AMBIENT AIR TEMP.SNS
EVAPORATIVE SENSOR
DRIVER PHOTO SENSOR
AIR MIX POPENTIO.(PA.)
DIRECTION POTENIO.DR.
PASSENGER PHOTO SENSOR
1.1 DIAGNOSTIC TROUBLE CODES
NUMBER OF DTC : 1 ITEMS
PART ERAS
HELP
B2415 PASSENGER AIR MIX MOTOR
Fig 1 : The current data in abnormal state.
Fig 2 : DTC B2415.
Fig. 1
Fig. 2
LQKG990J
4.
Are the DTC B2415 present and is parameter of "Passenger AIR MIX Potentiometer" fixed?
※
There is any fault in Passenger AIR MIX Motor. If the parameter of "Passenger AIR MIX DOOR" is 30% or less
when the actuator operates to the hot position, or If the parameter is 60% and more when the actuator operates to
the cold position.
YES
Go to "Inspection" procedure.
BLOWER AND A/C CONTROLS (AUTOMATIC)
HA -213
NO
Fault is intermittent caused by poor contact in the sensor’s and/or A/C controller’s connector or was repaired and
A/C controller memory was not cleared. Thoroughly 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.
TERMINAL AND CONNECTOR INSPECTION
E3270973
1.
Many malfunctions in the electrical system are caused by poor harness and terminals.
Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.
2.
Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or
damage.
3.
Has a problem been found?
YES
Repair as necessary and go to "Verification of Vehicle Repair" procedure.
NO
Go to "Signal circuit inspection" procedure.
SIGNAL CIRCUIT INSPECTION
E7D7A9BC
1.
Check for open in harness.
1) Ignition "OFF"
2) Disconnect Passenger Air Mix potentiometer.
3) Measure resistance between terminal "3,4" of Passenger Air Mix Motor and terminal "16,17" of A/C control unit.
Specification : Approx. 0 Ω
*
*
3
4
5
6
7
1
2
3
4
6
9
10
12
13
14
15
16
17
18
19
20
21
22
23
24
*
* *
*
25
26
5. Potentiometer ground
6. Potentiometer signal
7. Sensor reference voltage(+5V)
Ω
Ω
SCMHA6710L
4) Is the measured resistance within specifications?
YES
Go to "Check for short to ground in harness" procedure.
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