Hyundai Santa Fe (2006 year). Manual — part 426
FL -314
FUEL SYSTEM
DTC P0533 A/C REFRIGERANT PRESSURE SENSOR "A" CIRCUIT HIGH
INPUT
COMPONENT LOCATION
E70CA3EA
Refer to DTC P0532.
GENERAL DESCRIPTION
ECFA1EF0
Refer to DTC P0532.
DTC DESCRIPTION
E209BD48
P0533 is set when the voltage above 4.7V - maximum voltage of A/C pressure transducer signal - is detected for more
than 0.6 sec.. This code is due to short to battery in signal circuit or open in ground circuit of A/C pressure transducer.
DTC DETECTING CONDITION
E0598DE6
Item
Detecting Condition
Possible Cause
DTC Strategy
• Voltage monitoring
Enable Conditions
• IG KEY "ON"
Threshold Value
• When output signal is above the maximum
value ( above 4.7V )
Diagnostic Time
• 0.6 sec.
Fuel cut
NO
EGR Off
NO
Fuel Limit
NO
Fail Safe
Check
Lamp
NO
• A/C pressure fixed at 50 hPa
• A/C pressure transducer
circuit
• A/C pressure transducer
component
SPECIFICATION
EC722FD3
Refer to DTC P0532.
SCHEMATIC DIAGRAM
E19C1803
Refer to DTC P0532.
SIGNAL WAVEFORM AND DATA
EAE45C99
Refer to DTC P0532.
MONITOR SCANTOOL DATA
E0380EF9
Refer to DTC P0532.
TERMINAL AND CONNECTOR INSPECTION
E317A702
Refer to DTC P0532.
DTC TROUBLESHOOTING PROCEDURES
FL -315
POWER CIRCUIT INSPECTION
E83F3A58
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.
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 A/C Pressure Sensor connector terminal 3 and ECM connector(C230-K) terminal 22. ]
SIGNAL CIRCUIT INSPECTION
EBEDE63B
1.
Check short to battery in signal circuit
1)
IG KEY "OFF", ENGINE "OFF"
2)
Disconnect A/C pressure transducer connector and ECM connector.
3)
IG KEY "ON"
4)
Measure the voltage of A/C pressure transducer terminal 2.
Specification : 0.0V~0.1V
5)
Is abnormal voltage detected in the circuit with both connector disconnected?
YES
▶
Repair short to battery and go to "Verification of Vehicle Repair".
NO
▶
Go to "Ground Circuit Inspection".
GROUND CIRCUIT INSPECTION
E47E4DDF
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. [ TEST "A" ]
5.
Measure the voltage of A/C pressure transducer terminal 3 and terminal 1. [ TEST "B" ]
FL -316
FUEL SYSTEM
( terminal 3: Check + prove , terminal 1 : Check - prove )
Specification : the voltage difference between TEST "A" and TEST "B" is within 200mV
6.
Is the measured voltage within the specification?
YES
▶
Go to "Component Inspection"
NO
▶
When "B" voltage is not detected : Repair open in ground circuit and go to "Verification of Vehicle Repair".
▶
When the voltage difference between "A" and "B" is above 200mV : Eliminate the causes of excessive resistance
and go to "Verification of Vehicle Repair".
COMPONENT INSPECTION
EDAC38F3
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
DTC TROUBLESHOOTING PROCEDURES
FL -317
▶
Replace A/C pressure transducer and go to "Verification of Vehicle Repair".
VERIFICATION OF VEHICLE REPAIR
EDCBC152
Refer to DTC P0532.
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