Nissan Note [1545/1872] Diagnostic procedure

Nissan Note [1545/1872] Diagnostic procedure
FUEL PUMP
EC-1545
[HR (WITHOUT EURO-OBD)]
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.
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.
Diagnostic Procedure
BBS004RX
1. CHECK OVERALL FUNCTION
1. Turn ignition switch ON.
2. Pinch fuel feed hose (1) with two fingers.
Illustration shows the view with intake air duct removed.
OK or NG
OK >> INSPECTION END
NG >> GO TO 2.
2. CHECK FUEL PUMP POWER SUPPLY CIRCUIT-I
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Turn ignition switch ON.
4. Check voltage between ECM terminal 23 and ground with CON-
SULT-II or tester.
OK or NG
OK >> GO TO 5.
NG >> GO TO 3.
TERMI-
NAL
NO.
WIRE
COLOR
ITEM CONDITION DATA (DC Voltage)
23 R Fuel pump relay
[Ignition switch: ON]
For 1 second after turning ignition switch ON
[Engine is running]
0 - 1.0V
[Ignition switch: ON]
More than 1 second after turning ignition
switch ON
BATTERY VOLTAGE
(11 - 14V)
Fuel pressure pulsation should be felt on the fuel
feed hose for 1 second after ignition switch is turned
ON.
PBIB2978E
Voltage: Battery voltage
PBIA9573J

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