Hyundai Santa Fe (2006 year). Manual — part 683
HA -110
HEATING, VENTILATION AND AIR CONDITIONING
VERIFICATION OF VEHICLE REPAIR
E960BEBC
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 -111
DTC B1205 AIR MIX POTENTIOMETER SHORT (HIGH) - PASSENGER’S
COMPONENT LOCATION
E3CE4D5C
Temperature Control Actuator
SCMHA6700L
GENERAL DESCRIPTION
EBBBA148
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
EEFEA86B
The A/C controller sets DTC B1205 if there is a short to power in the air mix potentiometer.
DTC DETECTING CONDITION
E0C85E40
Item
Detecting Condition
Possible cause
DTC Strategy
• Voltage check
Threshold value
• > 4.9V
Detecting time
• 0.3 sec
FAIL SAFE
• If temperature setting 17~24.5 C(63~76 F) fix
at max. cooling position.
• If temperature setting 25~32 C(77~90 F) fix
at max. heating position.
• Short circuit in harness
• Faulty driver Air Mix
potentiometer
SPECIFICATION
EE47778F
Refer to DTC B1204.
MONITOR SCANTOOL DATA
E7CFD25C
1.
Connect scantool to Data Link Connector(DLC).
2.
Engine "ON"
HA -112
HEATING, VENTILATION AND AIR CONDITIONING
3.
Monitor the "Passenger’s Air Mix Potentiometer" Parameter on the Scantool while operating temp. switch.
1.1 DIAGNOSTIC TROUBLE CODES
NUMBER OF DTC : 1 ITEMS
PART
ERAS
HELP
B1205 AIR MIX P. - HIGH INPUT
1.2 CURRENT DATA
FIX
SCRN FULL
PART GRPH HELP
13.0 C
12.0 C
12.0 C
12.5 C
0.00 V
91.75 %
90.18 %
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
Fig 1 : The current data in abnormal state.
Fig 2 : DTC B1205.
Fig. 1
Fig. 2
EQBF522F
4.
Are the DTC B1205 present and is parameter of "Passenger’s Air Mix potentiometer" fixed?
※
Parameter of "Passenger’s Air Mix potentiometer" will be fixed at 100%(or any value above 90%), or 0% (or any
value below 10%), if there is any fault in Passenger’s Air Mix potentiometer.
YES
Go to "Inspection" procedure.
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
E283B9EA
Refer to DTC B1204.
SIGNAL CIRCUIT INSPECTION
E5E91EAA
1.
Check for short in harness.
1) Ignition "OFF"
2) Disconnect Passenger’s Air Mix potentiometer.
3) Measure resistance between terminal "6" and "7" of Passenger’s Air Mix potentiometer.
Specification : Approx. ∞ Ω
BLOWER AND A/C CONTROLS (AUTOMATIC)
HA -113
*
*
3
4
5
6
7
3. Motor (Warm)
4. Motor (Cool)
5. Potentiometer ground
6. Potentiometer signal
7. Sensor reference voltage(+5V)
Ω
SCMHA6519L
4) Is the measured resistance within specifications?
YES
Go to "Ground circuit Inspection" procedure.
NO
Check for short to power harness in signal harness. Repair as necessary and go to "Verification of Vehicle
Repair" procedure.
GROUND CIRCUIT INSPECTION
EE38C85A
1.
Check for open in harness.
1) Ignition "OFF"
2) Disconnect Passenger’s Air Mix Potentiometer.
3) Measure resistance between terminal "5" of Passenger’s Air Mix Potentiometer and chassis ground.
Specification : Approx. 0 Ω
*
*
3
4
5
6
7
3. Motor (Warm)
4. Motor (Cool)
5. Potentiometer ground
6. Potentiometer signal
7. Sensor reference voltage(+5V)
Ω
SCMHA6520L
4) Is the measured resistance within specifications?
YES
Go to "Component Inspection" procedure.
NO
Check for open in ground harness. Repair as necessary and go to "Verification of Vehicle Repair" procedure.
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