Hyundai Santa Fe (2006 year). Manual — part 644
FLA -642
FUEL SYSTEM
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.
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
E371FCF4
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
▶ Substitute with a known-good PCM and check for proper operation. If the problem is corrected,replace PCM and
then go to "Verification of Vehicle Repair" procedure.
DTC TROUBLESHOOTING PROCEDURES
FLA -643
NOTE
There is a memory reset function on scantool that can erase optional parts automaticallydetected and memorized by
PCM.
VERIFICATION OF VEHICLE REPAIR
E5910E0D
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
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.
FLA -644
FUEL SYSTEM
DTC U0001 CAN COMMUNICATION MALFUNCTION
GENERAL DESCRIPTION
E03A959E
Several control units are applied to electronically controlled vehicles. These units perform each control with informations
from various sensors. Thus, sharing signal information from sensors is needed, so CAN communication type whose com-
munication speed is high and insensitive to electrical noise by spark generation is adopted to controlling power-train(PCM,
ABS, ESP)
As sharing signals of engine speed, APS, gear shifting, torque reduction in ESP,ABS and various modules, active control
is performed.
DTC DESCRIPTION
E21BF1DB
Checking CAN communication, under detecting condition, if an error within the detecting condition is detected for more
than 1.5 sec., PCM sets U0001. MIL(Malfunction Indication Lamp) turns on when the malfunction lasts till consecutive 2
driving cycle.
DTC DETECTING CONDITION
E42C5BA1
Item
Detecting Condition
Possible cause
DTC Strategy
• Detects failures in communication between the
PCM and another or modules in the vehicle
which are on the CAN serial bus.
EnableConditions
• Engine Run Time ≥ 2sec.
• Ignition Voltage ≥ 11V
Threshold value
• CAN communicatin error
DiagnosisTime
• Continuous
MIL On Condition
• 2 Driving Cycles
• CAN BUS
• CAN communication module
component
SPECIFICATION
E4BAA2D9
DIGITAL "0"
DIGITAL "1"( BUS IDLE )
CAN Communication Line
Resistance
Format
HIGH
LOW
HIGH
LOW
PCM
Passenger
compartment
junction
block
CAN 2.0B
3.5V
1.5V
2.5V
2.5V
120Ω (20℃)
120Ω (20℃)
DTC TROUBLESHOOTING PROCEDURES
FLA -645
SCHEMATIC DIAGRAM
EC3D749D
(Data Link Connection)
PCM
M10
ABS Module
C280
EPS Module
C281
C30-A
Passenger Compartment Junction Block
PCM (C30-A)
I/P - C (17)
I/P - C (14)
[CIRCUIT DIAGRAM]
[HARNESS CONNECTORS]
19
14 13 12 11
31
34
35
36
30
10
24
22
65
67
50
74
75
76
77
CAN High - 41
CAN Low - 42
CAN High - 3
CAN Low - 11
26(35) CAN High
15(14) CAN Low
Data Link Connector (M18)
ABS or ESP Module (C280 or C281)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
7
21
23 24 25
13
7
32 33 34
38
17
19
21
41 42 43
45
22 23 24 25
39
SCMF16426L
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