Hyundai Santa Fe (2006 year). Manual — part 407
FL -238
FUEL SYSTEM
DTC P0253 FUEL PRESSURE REGULATOR VALVE CIRCUIT LOW
COMPONENT LOCATION
E0C15A1C
Refer to DTC P0252.
GENERAL DESCRIPTION
E61F2B67
Refer to DTC P0252.
DTC DESCRIPTION
E6C7EAAA
P0253 is set when "0"A in control circuit of Fuel metering unit(integrated with high pressure pump) is detected for more
than specified duration. This code is due to open or short to ground in control circuit or Fuel metering unit internal open.
DTC DETECTING CONDITION
EAE87B60
Item
Detecting Condition
Possible Cause
DTC Strategy
• Voltage monitoring
Enable Conditions
• IG KEY "ON"
Threshold Value
• Short to GND - 0.28 sec.
• Wiring open - 0.22 sec.
Diagnostic Time
• Refer to threshold value
Fuel cut
NO
EGR Off
NO
Fuel Limit
YES
Fail Safe
Check
Lamp
YES
• FPRV circuit
• FPRV component
SPECIFICATION
E0330F4F
Refer to DTC P0252.
SCHEMATIC DIAGRAM
E67C30ED
Refer to DTC P0252.
SIGNAL CIRCUIT INSPECTION
E77EAE9B
Refer to DTC P0252.
MONITOR SCANTOOL DATA
EA125B08
Refer to DTC P0252.
TERMINAL AND CONNECTOR INSPECTION
E858EA64
Refer to DTC P0252.
DTC TROUBLESHOOTING PROCEDURES
FL -239
POWER CIRCUIT INSPECTION
E17EFB76
1.
Check power circuit voltage
1)
IG KEY "OFF", ENGINE "OFF"
2)
Disconnect FPRV connector.
3)
IG KEY "ON"
4)
Measure the voltage of FPRV connector terminal 1.
specification : 11.5V~13.0V
5)
Is the measured voltage within the specification?
YES
▶
Go to "Control Circuit Inspection".
NO
▶
Repair open between FPRV connector terminal 1 and ECM connector(C230-A) terminal 19 and go to "Veri-
fication of Vehicle Repair".
CONTROL CIRCUIT INSPECTION
EDC13CE2
1.
Check monitoring voltage in control circuit
1)
IG KEY "OFF", ENGINE "OFF"
2)
Disconnect FPRV connector.
3)
IG KEY "ON"
4)
Measure the voltage of FPRV connector terminal 2.
specification : 3.2V~3.7V
5)
Is the measured voltage within the specification?
YES
▶
Go to "Component Inspection"
NO
▶
When voltage is not detected : Go to "2. Check open in control circuit" as follows.
▶
When high voltage is detected : Repair short to battery and go to "Verification of Vehicle Repair".
2.
Check open in control circuit
1)
IG KEY "OFF", ENGINE "OFF"
2)
Disconnect FPRV and ECM connector.
3)
Check continuity between FPRV connector terminal 2 and ECM connector (C230-A) terminal 49.
FL -240
FUEL SYSTEM
specification : Continuity ( below 1.0
Ω
)
4)
Is the measured resistance within the specification?
YES
▶
Repair short to ground in FPRV control circuit and go to "Verification of Vehicle Repair".
NO
▶
Repair open in FPRV control circuit and go to "Verification of Vehicle Repair".
COMPONENT INSPECTION
E340AEA1
1.
Check FPRV component resistance
1)
IG KEY "OFF", ENGINE "OFF".
2)
Disconnect rail pressure regulator valve connector.
3)
Check FPRV component resistance.
Specification : 2.9 ~ 3.15
Ω
(20
℃
)
1
2
EGNG008I
4)
Is FPRV component resistance within the specification?
YES
▶
Go to "Verification of Vehicle Repair".
NO
▶
Replace High pressure pump ass’y and go to "Verification of Vehicle Repair".
VERIFICATION OF VEHICLE REPAIR
E75F43B9
Refer to DTC P0252.
DTC TROUBLESHOOTING PROCEDURES
FL -241
DTC P0254 FUEL PRESSURE REGULATOR VALVE CIRCUIT HIGH
COMPONENT LOCATION
E96A7D25
Refer to DTC P0252.
GENERAL DESCRIPTION
EFCDF818
Refer to DTC P0252.
DTC DESCRIPTION
EF088AC1
P0254 is set when excessive current in power circuit of Fuel metering unit(integrated with high pressure pump) is detected
for more than 0.22 sec.. This code is due to short to battery in power circuit or Fuel metering unit internal short.
DTC DETECTING CONDITION
E7B3B771
Item
Detecting Condition
Possible Cause
DTC Strategy
• Voltage monitoring
Enable Conditions
• IG KEY "ON"
Threshold Value
• Short to battery (power circuit in fuel pressure
regulator valve)
Diagnostic Time
• 0.22 sec.
Fuel cut
NO
EGR Off
NO
Fuel Limit
YES
Fail Safe
Check
Lamp
YES
• FPRV circuit
• FPRV component
SPECIFICATION
E47A73AA
Refer to DTC P0252.
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