Hyundai Santa Fe (2006 year). Manual — part 556
FLA -290
FUEL SYSTEM
SIGNAL CIRCUIT INSPECTION
E9F3F25A
1.
IG "OFF" and disconnect HO2S(B2/S2) connector.
2.
IG "ON" and ENG "OFF"
3.
Measure voltage between terminal 1 of HO2S(B2/S2) harness connector and chassis ground.
Specification :
Approx. 3.5V - when pumping current is ON
Approx. 0.45V - when pumping current is OFF
4.
Is the measured voltage within specification?
YES
▶ Go to "Component Inspection" procedure.
NO
▶ Repair short to battery in harness, and go to "Verification of Vehicle Repair" procedure.
COMPONENT INSPECTION
E67626BE
1.
Check the Signal waveform of HO2S
1)
IG "OFF" and connect HO2S connector.
2)
Engine start.
3)
After warming-up, monitor signal waveform of HO2S with scantool.?
Fig) Signal waveform of front(the upper) and rear(the lower) HO2S at idle
SCMF16225L
4)
Is the sensor switching properly?
YES
▶ Go to "Check HO2S" as below.
NO
DTC TROUBLESHOOTING PROCEDURES
FLA -291
▶ Substitute with a known - good HO2S and check for proper operation.
If the problem is corrected, go to "Verification of Vehicle Repair" procedure.
2.
Check HO2S
1)
IG "OFF" and disconnect HO2S connector.
2)
Check that the HO2S is securely installed.
3)
Check the HO2S for contamination or damage
4)
Is the sensor normal?
YES
▶ Substitute with a known - good PCM and check for proper operation.
If the problem is corrected, go to "Verification of Vehicle Repair" procedure.
NO
▶ Substitute with a known - good HO2S and check for proper operation.
If the problem is corrected, 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. Before or after testing PCM on the vehicle, use this function to reuse the PCM on the others.
VERIFICATION OF VEHICLE REPAIR
E1B0F3D0
Refer to DTC P0157.
FLA -292
FUEL SYSTEM
DTC P0160 HO2S CIRCUIT NO ACTIVITY DETECTED (BANK 2 / SENSOR
2)
COMPONENT LOCATION
E7ECD0FE
Refer to DTC P0157.
GENERAL DESCRIPTION
E40C3747
Refer to DTC P0157.
DTC DESCRIPTION
EA1246BA
Checking output signals from HO2S under detecting condition, if an output voltage is approx.0.45V or 3.5V for more
than predeterminate time, PCM sets P0160. MIL(Malfunction Indication Lamp) turns on when the malfunction lasts till
consecutive 2 driving cycle.
DTC DETECTING CONDITION
E60838DA
Item
Detecting Condition
Possible cause
DTC Strategy
• Monitor signal voltage
Enable Conditions
• Battery voltage ≥ 10V
• Engine running ≥ 60 sec.
• Engine warm-up state
• No disable faults
Case 1
• 1.2V ≤ Voltage of HO2S ≤ 3.9V
(at pumping current ON)
Thresh-
old value
Case 2
• 0.415V ≤ Voltage of HO2S ≤ 0.515V
(at pumping current OFF)
Diagnosis Time
• Continuous
(more than 76.5 sec.failure for every 90 sec.test)
MIL On Condition
• 2 Driving Cycles
• Poor connection
• Open in harness
• HO2S(B2/S2)
• PCM
SPECIFICATION
EF953B16
Refer to DTC P0157.
SCHEMATIC DIAGRAM
E08EF8CF
Refer to DTC P0157.
SIGNAL WAVEFORM AND DATA
EC950F42
Refer to DTC P0157.
MONITOR DTC STATUS
E38A5341
Refer to DTC P0157.
DTC TROUBLESHOOTING PROCEDURES
FLA -293
TERMINAL AND CONNECTOR INSPECTION
EA9C0DA4
Refer to DTC P0157.
SIGNAL CIRCUIT INSPECTION
E4F75E95
1.
IG "OFF" and disconnect HO2S(B2/S2) connector.
2.
IG "ON" and ENG "OFF"
3.
Measure voltage between terminal 1 of HO2S(B2/S2) harness connector and chassis ground.
Specification :
Approx. 3.5V - when pumping current is ON
Approx. 0.45V - when pumping current is OFF
4.
Is the measured voltage within specification?
YES
▶ Go to "Ground Circuit Inspection" procedure.
NO
▶ Repair open in harness, and go to "Verification of Vehicle Repair" procedure.
GROUND CIRCUIT INSPECTION
E77D1325
1.
IG "ON" and disconnect HO2S(B2/S2) connector.
2.
Measure voltage between terminal 1 of HO2S(B2/S2) harness connector and chassis ground.
3.
Measure voltage between terminals 1 and 2 of HO2S(B2/S2) harness connector.
Specification : Voltage difference between measurement "A" and "B" is below 200mV.
4.
Is the measured voltage within specification?
YES
▶ Go to "Component Inspection" procedure.
NO
▶ Repair open in harness, and go to "Verification of Vehicle Repair" procedure.
COMPONENT INSPECTION
E279C52A
1.
Check the Signal waveform of HO2S
1)
IG "OFF" and connect HO2S connector.
2)
Engine start.
3)
After warming-up, monitor signal waveform of HO2S with scantool.?
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