Hyundai Santa Fe (2006 year). Manual — part 488
FLA -18
FUEL SYSTEM
GASOLINE ENGINE
CONTROL SYSTEM
DESCRIPTION
E722E9A3
If the Gasoline Engine Control system components (sen-
sors, ECM, injector, etc.) fail, interruption to the fuel sup-
ply or failure to supply the proper amount of fuel for various
engine operating conditions will result. The following situ-
ations may be encountered.
1.
Engine is hard to start or does not start at all.
2.
Unstable idle.
3.
Poor driveability
If any of the above conditions are noted, first perform a
routine diagnosis that includes basic engine checks (ig-
nition system malfunction, incorrect engine adjustment,
etc.). Then, inspect the Gasoline Engine Control system
components with the HI-SCAN (Pro).
NOTE
• Before removing or installing any part, read the
diagnostic trouble codes and then disconnect the
battery negative (-) terminal.
• Before disconnecting the cable from battery ter-
minal, turn the ignition switch to OFF. Removal
or connection of the battery cable during engine
operation or while the ignition switch is ON could
cause damage to the ECM.
• The control harnesses between the ECM and
heated oxygen sensor are shielded with the
shielded ground wires to the body in order to
prevent the influence of ignition noises and radio
interference. When the shielded wire is faulty,
the control harness must be replaced.
• When checking the generator for the charging
state, do not disconnect the battery ’+’ terminal
to prevent the ECM from damage due to the volt-
age.
• When charging the battery with the external
charger, disconnect the vehicle side battery
terminals to prevent damage to the ECM.
MALFUNCTION INDICATOR LAMP (MIL)
[EOBD]
A malfunction indicator lamp illuminates to notify the driver
that there is a problem with the vehicle. However, the MIL
will go off automatically after 3 subsequent sequential driv-
ing cycles without the same malfunction. Immediately af-
ter the ignition switch is turned on (ON position - do not
start), the MIL will illuminate continuously to indicate that
the MIL operates normally.
Faults with the following items will illuminate the MIL.
• Catalyst
• Fuel system
• Mass Air Flow Sensor (MAFS)
• Intake Air Temperature Sensor (IATS)
• Engine Coolant Temperature Sensor (ECTS)
• Throttle Position Sensor (TPS)
• Upstream Oxygen Sensor
• Upstream Oxygen Sensor Heater
• Downstream Oxygen Sensor
• Downstream Oxygen Sensor Heater
• Injector
• Misfire
• Crankshaft Position Sensor (CKPS)
• Camshaft Position Sensor (CMPS)
• Evaporative Emission Control System
• Vehicle Speed Sensor (VSS)
• Idle Speed Control Actuator (ISCA)
• Power Supply
• ECM/ PCM
• MT/AT Encoding
• Acceleration Sensor
• MIL-on Request Signal
• Power Stage
NOTE
Refer to "INSPECTION CHART FOR DIAGNOSTIC
TROUBLE CODES (DTC)" for more information.
[NON-EOBD]
A malfunction indicator lamp illuminates to notify the driver
that there is a problem with the vehicle. However, the MIL
will go off automatically after 3 subsequent sequential driv-
ing cycles without the same malfunction. Immediately af-
ter the ignition switch is turned on (ON position - do not
start), the MIL will illuminate continuously to indicate that
the MIL operates normally.
Faults with the following items will illuminate the MIL
• Heated oxygen sensor (HO2S)
• Mass Air Flow sensor (MAFS)
• Throttle position sensor (TPS)
• Engine coolant temperature sensor (ECTS)
• Idle speed control actuator (ISCA)
• Injectors
• ECM
NOTE
Refer to "INSPECTION CHART FOR DIAGNOSTIC
TROUBLE CODES (DTC)" for more information.
[INSPECTION]
1.
After turning ON the ignition key, ensure that the light
illuminates for about 5 seconds and then goes out.
GASOLINE ENGINE CONTROL SYSTEM
FLA -19
2.
If the light does not illuminate, check for an open cir-
cuit in the harness, a blown fuse or a blown bulb.
SELF-DIAGNOSIS
The ECM monitors the input/output signals (some signals
at all times and the others under specified conditions).
When the ECM detects an irregularity, it records the di-
agnostic trouble code, and outputs the signal to the Data
Link connector. The diagnosis results can be read with the
MIL or HI-SCAN (Pro). Diagnostic Trouble Codes (DTC)
will remain in the ECM as long as battery power is main-
tained. The diagnostic trouble codes will, however, be
erased when the battery terminal or ECM connector is dis-
connected, or by the HI-SCAN (Pro).
NOTE
If a sensor connector is disconnected with the ignition
switch turned on, the diagnostic trouble code (DTC)
is recorded. In this case, disconnect the battery neg-
ative terminal (-) for 15 seconds or more, and the di-
agnosis memory will be erased.
THE RELATION BETWEEN DTC AND DRIVING PATTERN IN EOBD SYSTEM
Driving
pattern
Driving
cycle
Malfunction
FLC
(Fault counter)
MIL
HLC
(Healing counter)
Warm up
cycle
Fault
memory
Freeze
frame
Ignition
on
off
on
off
LGIF601Q
1.
When the same malfunction is detected and main-
tained during two sequential driving cycles, the MIL
will automatically illuminate.
2.
The MIL will go off automatically if no fault is detected
after 3 sequential driving cycles.
3.
A Diagnostic Trouble Code(DTC) is recorded in ECM
memory when a malfunction is detected after two se-
quential driving cycles. The MIL will illuminate when
the malfunction is detected on the second driving cy-
cle.
If a misfire is detected, a DTC will be recorded, and
the MIL will illuminate, immediately after a fault is first
detected.
4.
A Diagnostic Trouble Code(DTC) will automatically
erase from ECM memory if the same malfunction is
not detected for 40 driving cycles.
NOTE
• A "warm-up cycle" means sufficient vehicle oper-
ation such that the coolant temperature has risen
by at least 40 degrees Fahrenheit from engine
starting and reaches a minimum temperature of
160 degress Fahrenheit.
• A "driving cycle" consists of engine startup, ve-
hicle operation beyond the beginning of closed
loop operation.
FLA -20
FUEL SYSTEM
COMPONENT LOCATION
E478BABD
29
16
[LHD]
[RHD]
1. PCM (Powertrain Control Module)
2. Mass Air Flow Sensor (MAFS)
3. Intake Air Temperature Sensor (IATS)
4. Manifold Absolute Pressure Sensor (MAPS)
5. Engine Coolant Temperature Sensor (ECTS)
6. Camshaft Position Sensor (CMPS) [Bank 1]
7. Camshaft Position Sensor (CMPS) [Bank 2]
8. Crankshaft Position Sensor (CKPS)
9. Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 1]
10. Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 2]
11. Heated Oxygen Sensor (HO2S) [Bank 2 / Sensor 1]
12. Heated Oxygen Sensor (HO2S) [Bank 2 / Sensor 2]
13. Knock Sensor (KS) [Bank 1]
14. Knock Sensor (KS) [Bank 2]
15. Injector
16. Accelerator Position Sensor (APS)
17. ETC Module [Throttle Position Sensor (TPS) + ETC Motor]
18. CVVT Oil Control Valve (OCV) [Bank 1]
19. CVVT Oil Control Valve (OCV) [Bank 2]
20. CVVT Oil Temperature Sensor (OTS)
21. Purge Control Solenoid Valve (PCSV)
22. Variable Intake Solenoid (VIS) Valve #1 (Surge Tank Side)
23. Variable Intake Solenoid (VIS) Valve #2 (Intake Manifold Side)
24. Fuel Pump Relay
25. Main Relay
26. Ignition Coil
27. Wheel Speed Sensor (WSS) [Without ABS/ESP (Euro-
/
)]
28. Vehicle Speed Sensor (VSS) [Except for Euro-
/
29. Data Link Connector (DLC)
30. Multi-Purpose Connector
31. A/C Pressure Transducer (APT)
29
16
22
13 14
4
21
17
2 3 1
30
6 23
31
26
15
18 19 20 5 7
8
24 25
SCMF16001L
GASOLINE ENGINE CONTROL SYSTEM
FLA -21
1. PCM (Powertrain Control Module)
2. Mass Air Flow Sensor (MAFS)
3. Intake Air Temperature Sensor (IATS)
PCM
SCMF16003L
MAFS & IATS
SCMF16002L
4. Manifold Absolute Pressure Sensor (MAPS)
17. ETC Module [Throttle Position Sensor
(TPS) + ETC Motor]
5. Engine Coolant Temperature Sensor (ECTS)
7. Camshaft Position Sensor (CMPS) [Bank2]
ETC Module (TPS + ETC Motor)
MAPS
SCMF16005L
CMPS [Bank 2]
ECTS
LGLG001R
6. Camshaft Position Sensor (CMPS) [Bank 1]
8. Crankshaft Position Sensor (CKPS)
CMPS [Bank 1]
LGLG001S
CKPS
LGLG001T
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