Hyundai Santa Fe (2006 year). Manual — part 701
HA -182
HEATING, VENTILATION AND AIR CONDITIONING
1
2
3
1
2
3
v
1. AQS signal input
2. AQS ground
3. AQS power
SCMHA6560L
Operating condition
Voltage
Note
Right after IGN "ON"
2.5V ± 0.3V
preheating(35 ± 2sec)
Normal
4.3V ± 0.3V
Intake door : Fresh
Gas detected
0.9V ± 0.3V
Intake door : Recirculation
Specifications : Voltage value of AQS sensor as a function of position of operating condition.
4) Is the measured voltage within specifications?
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 AQS sensor and check for proper operation.
If the problem is corrected, replace AQS sensor and then go to "Verification of Vehicle Repair" procedure.
2.
Check A/C Control Unit
1) Engine : "ON"
2) Disconnect AQS sensor.
3) Measure voltage between terminal "2" of A/C Control Unit and chassis ground.
Specification :Approx. 5V
2. AQS sensor signal input
1
2
3
4
6
9
10
12
13
14
15
16
17
18
19
20
21
22
23
24
*
* *
*
25
26
v
SCMHA6562L
4) Is the measured voltage within specifications?
BLOWER AND A/C CONTROLS (AUTOMATIC)
HA -183
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 A/C Control Unit and check for proper operation.
If the problem is correcirculationted, replace A/C Control Unit and then go to "Verification of Vehicle Repair"
procedure.
VERIFICATION OF VEHICLE REPAIR
E37705AF
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.
HA -184
HEATING, VENTILATION AND AIR CONDITIONING
DTC B1259 AQS FAILURE
COMPONENT LOCATION
E898B5F4
AQS Sensor is Located at Front Aide of Condensor
SCMHA6707L
GENERAL DESCRIPTION
EB944E6D
AQS(Air Quality System) keeps air inside in the most suitable state for driver. In polluted area AQS detects hazardous
gas and intercepts inflow automatically, Inversely, In freshsh area it allows the inflow of air to prevent the shortage of air
and the accumulation of carbon dioxide. AQS sensor is located at front side of condensor and once hazardous gas is
detected, it delivers the voltage signal to A/C controller for closing intake door.
DTC DESCRIPTION
E1DFB9E8
The A/C controller sets DTC B1259 if preheating time of AQS sensor is over 40sec or signal from AQS sensor is not within
specifications.
DTC DETECTING CONDITION
E734CCDD
Item
Detecting Condition
Possible cause
DTC Strategy
• Voltage/time check
Threshold value
• Voltage :
Preheating - 2.5V±0.3V
Normal - 4.3V±0.3V
Gas detected - 0.9V±0.3V
• Preheating time > 40sec
Detecting time
-
FAIL SAFE
• AQS function OFF
• Intake door : return to previous state
• Faulty AQS Sensor
• Poor connection of
connected part
SPECIFICATION
E441620B
Refer to DTC B1258.
BLOWER AND A/C CONTROLS (AUTOMATIC)
HA -185
MONITOR SCANTOOL DATA
E226D7AB
1.
Connect scantool to Data Link Connector(DLC).
2.
Engine "ON"
3.
Monitor the " AQS sensor " Parameter on the Scantool. While making hazardous gas such as tobacco fumes around
the AQS sensor.
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
84.69 %
51.76 %
255
2.6 V
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
AQS SENSOR
1.1 DIAGNOSTIC TROUBLE CODES
NUMBER OF DTC : 1 ITEMS
PART
ERAS
HELP
B1259 AQS SENSOR FAULT
Fig 1 : The current data in abnormal state.
Fig 2 : DTC B1259.
Fig. 1
Fig. 2
EQBF517B
4.
Are the DTC B1259 present and is parameter of "AQS SENSOR" fixed?
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
EFA337DB
Refer to DTC B1258.
SIGNAL CIRCUIT INSPECTION
E3C76BFD
1.
Check for open in harness.
1) Ignition "ON"
2) Disconnect AQS sensor.
3) Measure voltage value between terminal "3" of AQS sensor and chassis ground.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст