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EC-1714
[YD (WITHOUT EURO-OBD)]
DTC P1272 FUEL PUMP
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Diagnostic Procedure BBS002EA
1. CHECK FUEL TRANSPORT PUMP OPERATION
Perform Diagnostic Procedure for fuel transport pump. Refer to EC-1799
.
OK or NG
OK >> GO TO 2.
NG >> Follow the instruction of Diagnostic Procedure for fuel transport pump.
TERMI-
NAL
NO.
WIRE
COLOR
ITEM CONDITION
DATA
(DC Voltage and Pulse Signal)
10 Y/L Fuel pump
[Engine is running]
● Warm-up condition
● Idle speed
0 - 12.5V
[Engine is running]
● Warm-up condition
● Engine speed: 2,000 rpm
0 - 12.5V
29 L Fuel pump
[Engine is running]
● Warm-up condition
● Idle speed
0.5 - 1.0V
[Engine is running]
● Warm-up condition
● Engine speed: 2,000 rpm
0.5 - 1.0V
MBIB0885E
MBIB0886E
MBIB0887E
MBIB0888E
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