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DTC P0628, P0629 FUEL PUMP
EC-1093
[YD (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
DTC P0628, P0629 FUEL PUMP PFP:16700
Description EBS011C3
To control the amount of the fuel inhalation of the fuel pump, a plunger is built into the fuel pump. When the
amount of the fuel inhalation of fuel increases, the fuel pump raises the fuel exhalation pressure. As a result,
the fuel injection pressure is raised. When the load of the engine increases, the ECM sends a signal to the fuel
pump to raise the injection pressure.
CONSULT-II Reference Value in Data Monitor Mode EBS011C4
Specification data are reference values.
ECM Terminals and Reference Value EBS011C5
Specification data are reference values and are measured between each terminal and ground.
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.
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
TERMI-
NAL
NO.
WIRE
COLOR
ITEM CONDITION
DATA
(DC Voltage and Pulse Signal)
10 Y/L Fuel pump power supply
[Engine is running]
● Warm-up condition
● Idle speed
0 - 12.5V
[Engine is running]
● Warm-up condition
● Engine speed is 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 is 2,000 rpm
0.5 - 1.0V
MBIB0885E
MBIB0886E
MBIB0887E
MBIB0888E
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