Hyundai Santa Fe (2006 year). Manual — part 680
HA -98
HEATING, VENTILATION AND AIR CONDITIONING
NO
Go to "Signal circuit inspection" procedure.
SIGNAL CIRCUIT INSPECTION
EE5CF56F
1.
Check for open in harness.
1) Ignition "OFF"
2) Disconnect water temp. sensor.
3) Measure resistance between terminal "1" of water temp. sensor and terminal "7" of A/C Control Unit.
Specification : Approx. 0 Ω
1
12
15
17
19
20
21
22
2
3
4
5
6
7
8
9
10
11
2
1
1. Water temp. sensor signal
2. Sensor ground
Ω
14 13
16
18
SCMHA6507L
4) Is the measured resistance within specifications?
YES
Go to "Ground circuit Inspection " procedure.
NO
Check for open in harness. Repair as necessary and go to "Verification of Vehicle Repair" procedure.
GROUND CIRCUIT INSPECTION
E20A6934
1.
Check for open in ground harness.
1) Ignition "OFF"
2) Disconnect water temp. sensor.
3) Measure resistance between terminal "2" of water temp. sensor and chassis ground.
Specification : Approx. 0 Ω
BLOWER AND A/C CONTROLS (AUTOMATIC)
HA -99
2
1
1. Water temp. sensor signal
2. Sensor ground
Ω
SCMHA6508L
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.
COMPONENT INSPECTION
E8B1ACAD
1.
Check water temp. sensor.
1) Ignition "OFF"
2) Disconnect water temp. sensor.
3) Measure resistance between terminal "1" and "2" of water temp. sensor.
Specification : Refer the specifications in fig 3.
2
1
1. Water temp. sensor signal
2. Sensor ground
Ω
SCMHA6509L
4) Is the measured resistance within specifications in fig 3)? (tolerance limits ± 3%)
YES
Go to "Check A/C Control Unit" procedure.
NO
Substitute with a known-good water temp. sensor and check for proper operation.
If the problem is corrected, replace water temp. sensor and then go to "Verification of Vehicle Repair" procedure.
2.
Check A/C Control Unit
HA -100
HEATING, VENTILATION AND AIR CONDITIONING
1) Engine "ON"
2) Disconnect water temp. sensor.
3) Measure Voltage between terminal "7" of A/C Control Unit and chassis ground.
Specification : Approx. 5V
1
12
15
17
19
14 13
16
18
20
21
22
2
3
4
5
6
7
8
9
10
11
7. Water temp. sensor signal
v
SCMHA6510L
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 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
E60A09C9
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 -101
DTC B1203 WATER TEMPERATURE SENSOR SHORT (LOW)
COMPONENT LOCATION
E0E2BC32
Water Temperature Sensor
EQBF512A
GENERAL DESCRIPTION
EFE4C535
A water temp. sensor located at heater unit, detects coolant temperature. Its signal is used for cold engine lockout control.
When the driver operates the heater before the engine is warmed up, the signal from sensor causes the heater control
unit to reduce blower motor speed until coolant temperature reaches the threshold value.
DTC DESCRIPTION
EA17C85B
The A/C controller sets DTC B1203 if there is a short circuit in water temp. sensor signal harness or the measured
resistance value of sensor is less than threshold value(about 1.2kΩ )
DTC DETECTING CONDITION
EF2E3145
Item
Detecting Condition
Possible cause
DTC Strategy
• Resistance check
Threshold value
• < 1.2 kΩ
Detecting time
• 0.3 sec
FAIL SAFE
• Control with the value of -2 C(28.4 F)
• Short circuit in harness
• Faulty water temp. Sensor
• Faulty A/C control unit
SPECIFICATION
E6B0F9BF
Refer to DTC B1202.
MONITOR SCANTOOL DATA
EADCD72B
1.
Connect scantool to data link connector(DLC).
2.
Engine "ON"
3.
Monitor the "WATER TEMP. SENSOR" Parameter on the Scantool.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст