Nissan Cube. Instruction — part 381
EC-410
< DTC/CIRCUIT DIAGNOSIS >
[MR18DE]
FUEL PUMP
1.
Turn ignition switch OFF.
2.
Disconnect IPDM E/R harness connector E13.
3.
Turn ignition switch ON.
4.
Check the voltage between IPDM E/R harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 3.
3.
DETECT MALFUNCTIONING PART
Check the following.
• Harness or connectors E8, F1
• Harness for open or short between ECM and IPDM E/R
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.
CHECK FUEL PUMP POWER SUPPLY CIRCUIT-III
1.
Turn ignition switch OFF.
2.
Reconnect all harness connectors disconnected.
3.
Disconnect “fuel level sensor unit and fuel pump” harness connector.
4.
Turn ignition switch ON.
5.
Check the voltage between “fuel level sensor unit and fuel pump” harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> GO TO 5.
5.
CHECK FUSE
1.
Turn ignition switch OFF.
2.
Disconnect 15 A fuse (No. 60) from IPDM E/R.
3.
Check 15 A fuse.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Replace15 A fuse.
6.
CHECK FUEL PUMP POWER SUPPLY CIRCUIT-IV
1.
Disconnect IPDM E/R harness connector E15.
2.
Check the continuity between IPDM E/R harness connector and “fuel level sensor unit and fuel pump”
harness connector.
3.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> GO TO 7.
IPDM E/R
Ground
Voltage
Connector
Terminal
E13
31
Ground
Battery voltage
Fuel level sensor unit and fuel pump
Ground
Voltage
Connector
Terminal
B40
1
Ground
Battery voltage should exist 1 sec-
ond after ignition switch is turn ON.
IPDM E/R
Fuel level sensor unit and fuel pump
Continuity
Connector
Terminal
Connector
Terminal
E15
55
B40
1
Existed
FUEL PUMP
EC-411
< DTC/CIRCUIT DIAGNOSIS >
[MR18DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
7.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors B1, M18
• Harness connectors M77, E105
• Harness for open or short between IPDM E/R and “fuel level sensor unit and fuel pump”
>> Repair open circuit or short to power in harness or connectors.
8.
CHECK FUEL PUMP GROUND CIRCUIT
1.
Check the continuity between “fuel level sensor unit and fuel pump” and ground.
2.
Also heck harness for short to power.
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> Repair open circuit or short to power in harness or connectors.
9.
CHECK FUEL PUMP
EC-411, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> Replace “fuel level sensor unit and fuel pump”. Refer to
.
10.
CHECK INTERMITTENT INCIDENT
GI-40, "Intermittent Incident"
.
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-34, "Removal and Installation"
(With I-KEY) or
(Without I-KEY).
NO
>> Repair or replace harness or connectors.
Component Inspection
INFOID:0000000009947558
1.
CHECK FUEL PUMP
1.
Turn ignition switch OFF.
2.
Disconnect “fuel level sensor unit and fuel pump” harness connector.
3.
Check resistance between “fuel level sensor unit and fuel pump” terminals as per the following.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace “fuel level sensor unit and fuel pump”. Refer to
.
Fuel level sensor unit and fuel pump
Ground
Continuity
Connector
Terminal
B40
3
Ground
Existed
Terminals
Resistance
1 and 3
0.2 - 5.0
Ω
[at 25
°
C (77
°
F)]
EC-412
< DTC/CIRCUIT DIAGNOSIS >
[MR18DE]
IGNITION SIGNAL
IGNITION SIGNAL
Description
INFOID:0000000009947559
The ignition signal from the ECM is sent to and amplified by the power transistor. The power transistor turns
ON and OFF the ignition coil primary circuit. This ON/OFF operation induces the proper high voltage in the coil
secondary circuit.
Component Function Check
INFOID:0000000009947560
1.
INSPECTION START
Turn ignition switch OFF, and restart engine.
Does the engine start?
YES-1 >> With CONSULT: GO TO 2.
YES-2 >> Without CONSULT: GO TO 3.
NO
>> Go to
2.
IGNITION SIGNAL FUNCTION
With CONSULT
1.
Perform “POWER BALANCE” in “ACTIVE TEST” mode with CONSULT.
2.
Make sure that each circuit produces a momentary engine speed drop.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Go to
3.
IGNITION SIGNAL FUNCTION
Without CONSULT
1.
Let engine idle.
2.
Read the voltage signal between ECM harness connector and ground.
NOTE:
The pulse cycle changes depending on rpm at idle.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Go to
Diagnosis Procedure
INFOID:0000000009947561
1.
CHECK IGNITION COIL POWER SUPPLY CIRCUIT-I
1.
Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
2.
Check the voltage between ECM harness connector and ground.
ECM
Ground
Voltage signal
Connector
Terminal
F7
17
Ground
18
21
22
PBIA9265J
ECM
Ground
Voltage
Connector
Terminal
E16
105
Ground
Battery voltage
IGNITION SIGNAL
EC-413
< DTC/CIRCUIT DIAGNOSIS >
[MR18DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Go to
2.
CHECK IGNITION COIL POWER SUPPLY CIRCUIT-II
1.
Turn ignition switch OFF.
2.
Disconnect Condenser harness connector.
3.
Turn ignition switch ON.
4.
Check the voltage between condenser harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 3.
3.
CHECK IGNITION COIL POWER SUPPLY CIRCUIT-III
1.
Turn ignition switch OFF.
2.
Disconnect IPDM E/R harness connector E43.
3.
Check the continuity between IPDM E/R harness connector and condenser harness connector.
4.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> Go to
NO
>> GO TO 4.
4.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E8, F1
• IPDM E/R harness connector E43
• Harness for open or short between IPDM E/R and condenser
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.
CHECK CONDENSER GROUND CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Check the continuity between Condenser 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 ground or short to power in harness or connectors.
6.
CHECK CONDENSER
EC-416, "Component Inspection (Condenser)"
.
Is the inspection result normal?
YES
>> GO TO 7.
Condenser
Ground
Voltage
Connector
Terminal
F13
1
Ground
Battery voltage
IPDM E/R
Condenser
Continuity
Connector
Terminal
Connector
Terminal
E14
44
F13
1
Existed
Condenser
Ground
Continuity
Connector
Terminal
F13
2
Ground
Existed
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