Hyundai Santa Fe (2006 year). Manual — part 593
FLA -438
FUEL SYSTEM
3.
Operate the vehicle within conditions noted in the freeze frame data or enable conditions
4.
Monitor that all rediness test have been verified as " Complete "
5.
Are any DTCs present ?
YES
▶ Go to the applicable troubleshoooting procedure.
NO
▶ System is performing to specification at this time.
DTC TROUBLESHOOTING PROCEDURES
FLA -439
DTC P0533 A/C REFRIGERANT PRESSURE SENSOR "A" CIRCUIT HIGH
INPUT
COMMPONENT LOCATION
EA049922
Refer to DTC P0532.
GENERAL DESCRIPTION
E2E00DD0
Refer to DTC P0532.
DTC DESCRIPTION
EFD3B85E
Checking output signals from A/C pressure sensor under detecting condition, if an signal above 4.65V lasts for more than
10 sec., PCM sets P0533.
DTC DETECTING CONDITION
EC676D4D
Item
Detecting Condition
Possible cause
DTC Strategy
• Detects sensor signal short to high voltage
Enable Conditions
• Engine works
Thresh old value
• Sensor output voltage 〉4.65V
Diagnosis Time
• Continuous
(More than 10 seconds failure for every
20 seconds test)
MIL On Condition
• DTC only (NO MIL ON)
• Poor connection
• Short to battery in signal
circuit
• Open in ground circuit
• Faulty A/C pressure sensor
• Faulty PCM
SPECIFICATION
EF478CAD
Refer to DTC P0532.
SCHEMATIC DIAGRAM
E4925B57
Refer to DTC P0532.
SIGNAL WAVEFORM AND DATA
E636CEEB
Refer to DTC P0532.
MONITOR DTC STATUS
E263372C
Refer to DTC P0532.
TERMINAL AND CONNECTOR INSPECTION
EECBB251
Refer to DTC P0532.
FLA -440
FUEL SYSTEM
POWER CIRCUIT INSPECTION
E24F7E47
1.
IG Key "OFF".
2.
Disconnect the A/C pressure sensor connector.
3.
IG Key "ON".
4.
Measure the voltage between terminal 3 of A/C pressure sensor harness connector and chassis ground.
Specification : approx. 5V
5.
Is the measured voltage within specification ?
YES
▶ Go to "Ground circuit inspection" procedure.
NO
▶ Repair Open in power circuit and go to "Verification of Vehicle Repair" procedure.
GROUND CIRCUIT INSPECTION
EE3A1DF0
1.
IG Key "OFF".
2.
Disconnect the A/C pressure sensor connector.
3.
IG Key "ON".
4.
Measure the voltage between terminal 3 of A/C pressure sensor harness connector and chassis ground. (Fig A)
5.
Measure the voltage between terminal 3 and terminal 1 of A/C pressure sensor harness connector. (Fig B)
Specification : The Difference between "A" and "B" is below 200mV.
6.
Is the measured voltage within specification ?
YES
▶ Go to "Signal circuit inspection" procedure.
NO
▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure.
SIGNAL CIRCUIT INSPECTION
EDC3237B
1.
Voltage inspection
1)
IG Key "OFF".
2)
Disconnect the A/C pressure sensor connector.
3)
IG Key "ON".
4)
Measure the voltage between terminal 2 of A/C pressure sensor harness connector and chassis ground.
DTC TROUBLESHOOTING PROCEDURES
FLA -441
Specification : Approx. 0V
5)
Is the measured voltage within specification ?
YES
▶ Go to "Component inspection" procedure.
NO
▶ Go to "Check short to battery in harness" procedure.
2.
Check short to battery in harness
1)
IG Key "OFF".
2)
Disconnect A/C pressure sensor connector and PCM connector.
3)
Measure the resistance between terminal 2 and terminal 3 of A/C pressure sensor harness connector.
Specification : Infinite
4)
Is the measured resistance within specification ?
YES
▶ Go to "Component inspection" procedure.
NO
▶ Repair Short in signal circuit and go to "Verification of Vehicle Repair" procedure.
COMPONENT INSPECTION
E5E87679
1.
A/C pressure sensor inspection
1)
IG Key "OFF" and connect the scantool.
2)
Connect the probe to A/C pressure sensor signal and select the oscilloscope in the menu.
3)
Check the waveform with acceleration and deceleration after engine start.
SPECIFICATION :
Pressure(psi)
13.7
127.4
241.2
355.0
468.8
Voltage(V)
0.5
1.5
2.5
3.5
4.5
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