Nissan Note [1761/1872] Dtc p0231 fuel pump

Nissan Note [1761/1872] Dtc p0231 fuel pump
DTC P0231 FUEL PUMP
EC-1761
[K9K]
C
D
E
F
G
H
I
J
K
L
M
A
EC
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
BBS00443
1. CHECK FUEL PUMP POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect fuel pump harness connector.
3. Turn ignition switch ON.
4. Check voltage between fuel pump terminal 2 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
TERMI-
NAL
NO.
WIRE
COLOR
ITEM CONDITION
DATA
(DC Voltage and Pulse Signal)
39 P 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
104 P ECM relay (self-shutoff)
[Ignition switch ON]
[Ignition switch OFF]
For a few seconds after turning ignition
switch OFF
Approximately 1.4V
[Ignition switch OFF]
More than a few seconds after turning igni-
tion switch OFF
BATTERY VOLTAGE
(11 - 14V)
109
110
G
G
Power supply for ECM [Ignition switch ON]
BATTERY VOLTAGE
(11 - 14V)
MBIB1506E
MBIB1507E
Voltage: Battery voltage
PBIB2605E

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