Hyundai Santa Fe (2006 year). Manual — part 425
FL -310
FUEL SYSTEM
Fig.1
Fig.2
Fig.1) Data at idle and aircon "OFF", Aircon pressure sensor output voltage is 1352mV.
Fig.2) Data at idle and aircon "ON". Aircon pressure sensor output voltage increases as aircon compressor operates.
A/C Pressure sensor transducer voltage varies too much, therefore do not concern too much about the figure
instead, check the rising tendancy of A/C Pressure transducer.
SCMFL6297L
TERMINAL AND CONNECTOR INSPECTION
E93E9DD3
1.
Electrical systems consist of a lot of harness and connectors, poor connection of terminals can cause various prob-
lems and damge of component.
2.
Perform checking procedure as follows.
1)
Check damage of harness and terminals : Check terminals for contact resistance, corrosion and deformation.
2)
Check connecting condition of ECM and component connector : Check terminal seperation, damage of locking
device and connecting condition between terminal and wiring.
NOTE
Disconnect the pin which requires checking at male connector and insert it to the terminal at female connector for
checking connecting condition. ( after checking, reconnect the pin at correct position. )
3.
Is the problem found?
YES
▶
Repair the trouble causing part and go to "Verification of Vehicle Repair".
NO
▶
Go to "Power Circuit Inspection".
POWER CIRCUIT INSPECTION
E99A2654
1.
IG KEY "OFF", ENGINE "OFF"
2.
Disconnect A/C pressure transducer connector.
3.
IG KEY "ON"
4.
Measure the voltage of A/C pressure transducer terminal 3.
DTC TROUBLESHOOTING PROCEDURES
FL -311
Specification : 4.8V~5.1V
5.
Is the measured voltage within the specification ?
YES
▶
Go to "Signal Circuit Inspection".
NO
▶
Repair open in power circuit of A/C pressure transducer and go to "Verification of Vehicle Repair".
[ Check open between aircon pressure sensor connector terminal 3 and ECM connector(C230-K) terminal 22. ]
SIGNAL CIRCUIT INSPECTION
EA07A4BE
1.
Check open in signal circuit
1)
IG KEY "OFF", ENGINE "OFF"
2)
Disconnect A/C pressure transducer connector and ECM connector.
3)
Check continuity between A/C pressure transducer connector terminal 2 and ECM connector (C230-K) terminal
13.
Specification : Continuity (below 1.0
Ω
)
4)
Is the measured resistance within the specification?
YES
▶
Go to "2. Check short to ground in signal circuit" as follows.
NO
▶
Repair open in signal circuit and go to "Verification of Vehicle Repair".
2.
Check short to ground in signal circuit
1)
IG KEY "OFF", ENGINE "OFF"
2)
Disconnect A/C pressure transducer connector and ECM connector.
3)
Check continuity between A/C pressure transducer connector terminal 2 and chassis ground.
Specification : Discontinuity (Infinite
Ω
)
4)
Is the measured resistance within the specification?
YES
▶
Go to "Component Inspection".
NO
▶
Repair short to ground in signal circuit and go to "Verification of Vehicle Repair".
FL -312
FUEL SYSTEM
COMPONENT INSPECTION
E3EB568E
1.
Aircon pressure sensor visual inspection
1)
IG KEY "OFF", ENGINE "OFF"
2)
Disconnect A/C pressure transducer connector.
3)
Check if corrosion and contamination at aircon pressure sensor terminal is detected.
4)
Check aircon pressure sensor connecting torque and aircon refrigerant leakage.
5)
Does any problem is detected at aircon pressure sensor?
YES
▶
Replace aircon pressure sensor and go to "Verification of Vehicle Repair".
NO
▶
Go to "2. Check A/C pressure transducer waveform " as follows.
2.
Check A/C pressure transducer waveform
1)
IG KEY "OFF", ENGINE "OFF"
2)
Connect A/C pressure transducer connector.
3)
Connect oscilloscope to A/C pressure transducer connector terminal 2.
4)
Monitor aircon pressure sensor waveform at idle as turning Aircon "ON".
Specification : Refer to "Signal waveform
&
data"
5)
Is A/C pressure transducer waveform outputted correctly?
YES
▶
Go to "Verification of Vehicle Rapair".
NO
▶
Replace A/C pressure transducer and go to "Verification of Vehicle Repair".
VERIFICATION OF VEHICLE REPAIR
E152C1B2
After a repair, it is essential to verify that the fault is corrected.
1.
After connecting Scantool select "DIAGNOSTIC TROUBLE CODES(DTCs)" mode.
2.
Clear recorded DTC using Scantool.
3.
Drive the vehicle within DTC "Enable conditions" in "General information".
4.
After selecting "DIAGNOSTIC TROUBLE CODES(DTCs)" mode and check if DTC is recorded again.
5.
Are any DTCs recorded ?
YES
DTC TROUBLESHOOTING PROCEDURES
FL -313
▶
Go to the DTC guide of recorded NO. in Scantool.
NO
▶
System operates within specification.
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