Hyundai Santa Fe (2006 year). Manual — part 592
FLA -434
FUEL SYSTEM
SCHEMATIC DIAGRAM
E445C178
[CIRCUIT DIAGRAM]
[HARNESS CONNECTOR]
[CONNECTION INFORMATION]
A/C PRESSURE SENSOR
E01
Terminal
Connected to
Function
1
2
PCM C30-A (32)
Sensor Ground
A/C analog pressure
PCM C30-A (33)
3
Sensor supply (+5V)
PCM C30-A (58)
PCM (C30-A)
A/C PRESSURE SENSOR (E01)
P
3
2
1
33 - Sensor Ground
32 - A/C analog pressure
58 - Sensor supply (+5V)
PCM
C30-A
1
2
3
3 2 1
6 5 4
9
21
23
16 15
17
18
19
38 37 36 35 34
39
40
26 25 24
22
27
28
29
46
47
48
49
68 67
69
70
42 41
43
44
62 61
63
64
66 65
45
56
57
58
59
60
78 77 76 75 74
79
80
52 51 50
53
72 71
73
54
55
32 31 30
33
20
14 13 12 11 10
8 7
SCMF16369L
SIGNAL WAVEFORM AND DATA
EB03F274
- A/C OFF & idle state
- A/C ON & idle state
EGRF884A
MONITOR DTC STATUS
EB6B770A
1.
Check DTC Status
1)
Connect scantool to Data Link Connector(DLC).
2)
IG "ON".
3)
Select "Diagnostic Trouble Codes(DTCs)" mode, and then Press F4(DTAL) to check DTC’s information from the
DTCs menu
4)
Read "DTC Status" parameter.
DTC TROUBLESHOOTING PROCEDURES
FLA -435
SCMF16159L
5)
Is parameter displayed "Present fault"?
YES
▶ Go to "Terminal and connector inspection" procedure.
NO
▶ Fault is intermittent caused by poor contact in the sensor’s and/or PCM’s connector or was repaired and PCM
memory was not cleared. Thoroughly check connectors for looseness, poor connection, ending, corrosion, con-
tamination, deterioration, or damage. Repair or replace as necessary and go to "Verification of Vehicle Repair"
procedure.
TERMINAL AND CONNECTOR INSPECTION
E243BD27
1.
Many malfunctions in the electrical system are caused by poor harness and terminals. Faults can also be caused by
interference from other electrical systems, and mechanical or chemical damage.
2.
Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or
damage.
3.
Has a problem been found?
YES
▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure
NO
▶ Go to " Power Circuit Inspection " procedure.
POWER CIRCUIT INSPECTION
EF2BA5DE
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.
FLA -436
FUEL SYSTEM
Specification : approx. 5V
5.
Is the measured voltage within specification ?
YES
▶ Go to "Signal circuit inspection" procedure.
NO
▶ Repair Open or Short to ground in A/C pressure sensor power circuit and go to "Verification of Vehicle Repair"
procedure.
SIGNAL CIRCUIT INSPECTION
E5715370
1.
Check short to ground inspection
1)
IG Key "OFF".
2)
Disconnect A/C pressure sensor and PCM connector.
3)
Measure the resistance between terminal 2 of A/C pressure sensor harness connector and chassis ground.
Specification : Infinite
4)
Is the measured resistance within specification ?
YES
▶ Go to "Check open in harness" procedure.
NO
▶ Repair Short to ground in A/C pressure sensor signal circuit and go to "Verification of Vehicle Repair" proce-
dure.
2.
Check open in harness
1)
IG Key "OFF".
2)
Disconnect A/C pressure sensor and PCM connector.
3)
Measure the resistance between terminal C30-A (2) of A/C pressure sensor harness connector and terminal 32
of PCM harness connector.
Specification : Approx. below 1Ω
4)
Is the measured resistance within specification ?
YES
▶ Go to "Component inspection" procedure.
NO
▶ Repair Open in A/C pressure signal circuit and go to "Verification of Vehicle Repair" procedure.
DTC TROUBLESHOOTING PROCEDURES
FLA -437
COMPONENT INSPECTION
E4DCCBE8
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
1. A/C pressure sensor ground
2. A/C pressure sensor signal
3. A/C pressure sensor power
E01
1
2
3
- A/C OFF & Idle
- A/C ON & Idle
SCMF16373L
4)
Is the measured waveform of A/C pressure sensor normal?
YES
▶ Substitute with a known - good PCM and check for proper operation. If the problem is corrected, replace PCM
and go to "Verification of Vehicle Repair" procedure.
NO
▶ Substitute with a known - good A/C pressure sensor and check for proper operation. If the problem is cor-
rected, replace A/C pressure sensor and go to "Verification of Vehicle Repair" procedure.
NOTE
There is a memory reset function on scantool that can erase optional parts automatically detected and memorized
by PCM. After testing PCM on the vehicle, use this function to reuse the PCM on the others
VERIFICATION OF VEHICLE REPAIR
E2DAA8D6
After a repair, it is essential to verify that the fault has been corrected.
1.
Monitor and record the Freeze Frame Data for the Diagnostic Trouble Code(DTC) which has been diagnosed.
2.
Using a Scantool, Clear the DTCs
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