Hyundai Santa Fe (2006 year). Manual — part 696
HA -162
HEATING, VENTILATION AND AIR CONDITIONING
COMPONENT INSPECTION
E74FBEDE
Refer to DTC B1245.
VERIFICATION OF VEHICLE REPAIR
EB8C6BA5
Refer to DTC B1245.
BLOWER AND A/C CONTROLS (AUTOMATIC)
HA -163
DTC B1249 DIRECTION POTENTIOMETER OPEN (LOW) - DRIVER
COMPONENT LOCATION
E1A16B4D
Mode Control Actuator
SCMHA6706L
GENERAL DESCRIPTION
E25C3DBB
The mode control actuator mounted on heater unit, adjusts position of mode door by operating Direction Motor based on
signal of A/C control unit. Pressing mode select switch makes the mode control actuator shift in order of vent→ B/L →
floor → mix.
DTC DESCRIPTION
E2F32A26
The A/C controller sets DTC B1249 if there is an open circuit or poor connection in the Direction potentiometer.
DTC DETECTING CONDITION
E699D917
Item
Detecting Condition
Possible cause
DTC Strategy
• Voltage check
Threshold value
• < 0.1V
Detecting time
• 0.3 sec
FAIL SAFE
• Fix vent position, while selecting vent mode.
• Fix defrost position while selecting except vent mode.
• Poor connection of
connected part
• Open circuit in harness
• Short circuit in harness
• Faulty driver direction
potentiometer
HA -164
HEATING, VENTILATION AND AIR CONDITIONING
SPECIFICATION
E0101031
4.7V
2.5V
0.3V
DEF
VENT
Direction Potentiometer
Output
voltage
EQBF523B
MONITOR SCANTOOL DATA
E63388EE
1.
Connect scantool to Data Link Connector(DLC).
2.
Engine "ON"
3.
Monitor the "DR. DIRECTION POTENTIO." parameter on the scantool while operating mode switch.
1.2 CURRENT DATA
FIX
SCRN FULL
PART GRPH HELP
13.0 C
11.5 C
12.0 C
13.0 C
0.00 V
92.54 %
1.96 %
255
HEATER WATER TEMP.SNSR
IN-CAR TEMP.SENSOR
AMBIENT AIR TEMP.SNS
EVAPORATIVE SENSOR
DRIVER PHOTO SENSOR
AIR MIX POPENTIO.(DR.)
DIRECTION POTENIO.DR.
PASSENGER PHOTO SENSOR
1.1 DIAGNOSTIC TROUBLE CODES
NUMBER OF DTC : 1 ITEMS
PART
ERAS
HELP
B1249 DIRECTION P. - LOW INPUT
Fig 1 : The current data in abnormal state.
Fig 2 : DTC B1249.
Fig. 1
Fig. 2
EQBF523C
4.
Are the DTC B1249 present and is parameter of "DR. DIRECTION POTENTIO." fixed?
※
Parameter of "DR. DIRECTION POTENTIO." will be fixed at 100%(or any value above 90%), or 0% (or any value
below 10%), if there is any fault in Driver Direction potentiometer.
YES
Go to "Inspection" procedure.
BLOWER AND A/C CONTROLS (AUTOMATIC)
HA -165
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
E3E72485
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
EEDADDD6
1.
Check for open in harness.
1) Ignition "OFF"
2) Disconnect Driver mode Actuator.
3) Measure resistance between terminal "6" of Driver Direction potentiometer and terminal "21" of A/C control unit.
Specification : Approx. 0 Ω
Ω
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
4. Motor
5. Potentiometer ground
6. Potentiometer signal
7. Sensor reference voltage(+5V)
SCMHA6551L
4) Is the measured resistance within specifications?
YES
Go to "Check for short to ground in harness" procedure.
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