Nissan March K13. Instruction — part 206
FUEL INJECTOR
EC-285
< DTC/CIRCUIT DIAGNOSIS >
[HR12DE (TYPE 1)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
FUEL INJECTOR
Component Function Check
INFOID:0000000005989395
1.
INSPECTION START
Turn ignition switch to START.
Is any cylinder ignited?
YES
>> GO TO 2.
NO
>> Go to
2.
CHECK FUEL INJECTOR FUNCTION
With CONSULT-III
1.
Start engine.
2.
Perform “POWER BALANCE” in “ACTIVE TEST” mode with CONSULT-III.
3.
Make sure that each circuit produces a momentary engine speed drop.
Without CONSULT-III
1.
Let engine idle.
2.
Listen to each fuel injector operating sound.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Go to
Diagnosis Procedure
INFOID:0000000005989396
1.
CHECK FUEL INJECTOR POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect fuel injector harness connector.
3.
Turn ignition switch ON.
4.
Check the voltage between fuel injector harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E8, F1
• IPDM E/R connector E15
• 15 A fuse (No. 62)
• Harness for open or short between fuel injector and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
Clicking noise should be heard.
PBIB3332E
Fuel injector
Ground
Voltage
Cylinder
Connector
Terminal
1
F37
1
Ground
Battery voltage
2
F38
1
3
F39
1
4
F40
1
EC-286
< DTC/CIRCUIT DIAGNOSIS >
[HR12DE (TYPE 1)]
FUEL INJECTOR
3.
CHECK FUEL INJECTOR OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Check the continuity between fuel injector harness connector and ECM harness connector.
4.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.
CHECK FUEL INJECTOR
EC-286, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace malfunctioning fuel injector.
5.
CHECK INTERMITTENT INCIDENT
GI-33, "Intermittent Incident"
Is the inspection result normal?
YES
>> Replace IPDM E/R.
NO
>> Repair or replace harness or connectors.
Component Inspection
INFOID:0000000005989397
1.
CHECK FUEL INJECTOR
1.
Turn ignition switch OFF.
2.
Disconnect fuel injector harness connector.
3.
Check resistance between fuel injector terminals as follows.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace malfunctioning fuel injector.
Fuel injector
ECM
Continuity
Cylinder
Connector
Terminal
Connector
Terminal
1
F37
2
F7
31
Existed
2
F38
2
30
3
F39
2
29
4
F40
2
25
Terminals
Resistance
1 and 2
11.1 - 14.5
Ω
[at 10 - 60
°
C (50 - 140
°
F)]
FUEL PUMP
EC-287
< DTC/CIRCUIT DIAGNOSIS >
[HR12DE (TYPE 1)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
FUEL PUMP
Component Function Check
INFOID:0000000005989398
1.
CHECK FUEL PUMP FUNCTION
1.
Turn ignition switch ON.
2.
Pinch fuel feed hose (1) with two fingers.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>>
.
Diagnosis Procedure
INFOID:0000000006066587
1.
CHECK GROUND CONNECTION
1.
Turn ignition switch OFF.
2.
Check ground connection M95. Refer to Ground Inspection in
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace ground connection.
2.
CHECK FPCM POWER SUPPLY CIRCUIT-I
1.
Turn ignition switch OFF.
2.
Disconnect FPCM harness connector.
3.
Turn ignition switch ON.
4.
Check the voltage between FPCM harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> GO TO 3.
3.
CHECK FPCM POWER SUPPLY CIRCUIT-II
1.
Turn ignition switch OFF.
2.
Disconnect IPDM E/R harness connector.
3.
Check the continuity between IPDM E/R harness connector and FPCM harness connector.
4.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 4.
4.
DETECT MALFUNCTIONING PART
Check the following.
Fuel pressure pulsation should be felt on the fuel feed
hose for 1 second after ignition switch is turned ON.
JSBIA0377ZZ
FPCM
Ground
Voltage
Connector
Terminal
B31
10
Ground
Battery voltage
IPDM E/R
FPCM
Voltage
Connector
Terminal
Connector
Terminal
E5
13
B31
10
Battery voltage
EC-288
< DTC/CIRCUIT DIAGNOSIS >
[HR12DE (TYPE 1)]
FUEL PUMP
• Harness connectors B3, E121 (LHD models)
• Harness connectors B1, M7 (RHD models)
• Harness connectors M6, E106 (RHD models)
• IPDM E/R harness connector E5
• Harness for open or short between FPCM and IPDM E/R
>> Repair open circuit, short to ground or short to power in harness or connectors.
5.
CHECK FPCM POWER SUPPLY CIRCUIT-II
1.
Disconnect IPDM E/R harness connector.
2.
Check the continuity between IPDM E/R harness connector and ground.
3.
Also check harness for short to power.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair open circuit or short to power in harness or connectors.
6.
CHECK FUSE
1.
Disconnect 15A fuse (No. 41) from IPDM E/R.
2.
Check 15 A fuse.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Replace 15 A fuse.
7.
CHECK INTERMITTENT INCIDENT
GI-33, "Intermittent Incident"
Is the inspection result normal?
YES
>> Replace IPDM E/R.
NO
>> Repair open circuit, short to ground or short to power in harness or connectors.
8.
CHECK FPCM GROUND CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Check the continuity between FPCM harness connector and ground.
3.
Also check harness for short to power.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair open circuit or short to power in harness or connectors.
9.
CHECK FPCM INPUT AND OUTPUT CIRCUITS FOR OPEN AND SHORT
1.
Disconnect ECM harness connector.
2.
Check the continuity between FPCM harness connector and ECM harness connector.
3.
Also check harness for short to ground and short to power.
IPDM E/R
Ground
Voltage
Connector
Terminal
E7
77
Ground
Battery voltage
FPCM
Ground
Continuity
Connector
Terminal
B31
5
Ground
Existed
FPCM
ECM
Continuity
Connector
Terminal
Connector
Terminal
B31
8
M160
125
Existed
9
112
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