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DTC P1272 FUEL PUMP
EC-1711
[YD (WITHOUT EURO-OBD)]
C
D
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EC
DTC P1272 FUEL PUMP PFP:16700
Description BBS002E5
When the fuel pressure in fuel rail increases to excessively high, fuel
pressure relief valve opens to carry excess fuel to the return hose.
CONSULT-II Reference Value in Data Monitor Mode BBS002E6
Specification data are reference values.
On Board Diagnosis Logic BBS002E7
The MI will not light up for this self-diagnosis.
NOTE:
If DTC P1272 is displayed with DTC P0652 or P0653, first perform trouble diagnosis for DTC P0652 or
P0653. Refer to EC-1691, "
DTC P0652, P0653 SENSOR POWER SUPPLY" .
DTC Confirmation Procedure BBS002E8
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and keep engine speed more than 4,000 rpm for at
least 5 seconds, then release the accelerator pedal.
4. If DTC is detected, go to EC-1714, "
Diagnostic Procedure" .
PBIB1900E
MONITOR ITEM CONDITION SPECIFICATION
PUMP CURRENT
● Engine: After warming up
● Air conditioner switch: OFF
● Shift lever: Neutral position
● No load
Idle 1,700 - 1,900 mA
2,000 rpm 1,600 - 1,800 mA
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1272
1272
Fuel rail pressure relief
valve open
Fuel rail pressure relief valve is open
because of fuel pressure control system mal-
function.
● Harness or connectors
(Fuel pump circuit is open or shorted.)
● Fuel pump
● Fuel rail pressure sensor
● Air mixed with fuel
● Lack of fuel
● Fuel transport pump operation
SEF817Y
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