Nissan Qashqai (2007-2010). Manual — part 197
FUEL PUMP
EC-307
< COMPONENT DIAGNOSIS >
[HR16DE (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
NO
>> GO TO 7.
7.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors B10, E101
• 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-928, "Component Inspection (Fuel Pump)"
.
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> Replace fuel pump.
10.
CHECK INTERMITTENT INCIDENT
GI-39, "Intermittent Incident"
.
Is the inspection result normal?
YES
>> Replace IPDM E/R.
NO
>> Repair or replace harness or connectors.
Component Inspection (Fuel Pump)
INFOID:0000000001056510
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 follows.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace “fuel level sensor unit and fuel pump”.
Fuel level sensor unit
and fuel pump
Ground
Continuity
Connector
Terminal
B40
3
Ground
Existed
Terminals
Resistance [at 25
°
C (77
°
F)]
1 and 3
0.2 - 5.0
Ω
EC-308
< COMPONENT DIAGNOSIS >
[HR16DE (WITH EURO-OBD)]
IGNITION SIGNAL
IGNITION SIGNAL
Description
INFOID:0000000001056512
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:0000000001056513
1.
INSPECTION START
Turn ignition switch OFF, and restart engine.
Does the engine start?
YES-1 >> With CONSULT-III: GO TO 2.
YES-2 >> Without CONSULT-III: GO TO 3.
NO
>> Go to
2.
IGNITION SIGNAL FUNCTION
With CONSULT-III
1.
Perform “POWER BALANCE” in “ACTIVE TEST” mode with CONSULT-III.
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-III
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:0000000001056514
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
22
21
PBIA9265J
ECM
Ground
Voltage
Connector
Terminal
E16
105
Ground
Battery voltage
IGNITION SIGNAL
EC-309
< COMPONENT DIAGNOSIS >
[HR16DE (WITH EURO-OBD)]
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 4.
NO
>> GO TO 3.
3.
CHECK IGNITION COIL POWER SUPPLY CIRCUIT-III
1.
Turn ignition switch OFF.
2.
Disconnect IPDM E/R harness connector E11.
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
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.
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 5.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.
CHECK CONDENSER
EC-312, "Component Inspection (Condenser)"
Is the inspection result normal?
YES
>> GO TO 6.
NG
>> Replace condenser.
6.
CHECK IGNITION COIL POWER SUPPLY CIRCUIT-V
1.
Reconnect all harness connectors disconnected.
2.
Disconnect ignition coil harness connector.
3.
Turn ignition switch ON.
4.
Check the voltage between ignition coil harness connector and ground.
Condenser
Ground
Voltage
Connector
Terminal
F13
1
Ground
Battery voltage
IPDM E/R
Condenser
Continuity
Connector
Terminal
Connector
Terminal
E11
10
F13
1
Existed
Condenser
Ground
Continuity
Connector
Terminal
F13
2
Ground
Existed
EC-310
< COMPONENT DIAGNOSIS >
[HR16DE (WITH EURO-OBD)]
IGNITION SIGNAL
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
7.
CHECK IGNITION COIL GROUND CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Check the continuity between ignition coil harness connector and ground.
3.
Also check harness for short to power.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
8.
CHECK IGNITION COIL OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Disconnect ECM harness connector.
2.
Check the continuity between ECM harness connector and ignition coil harness connector.
3.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
9.
CHECK IGNITION COIL WITH POWER TRANSISTOR
EC-312, "Component Inspection (Ignition Coil with Power Transistor)"
.
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> Replace malfunctioning ignition coil with power transistor.
10.
CHECK INTERMITTENT INCIDENT
GI-39, "Intermittent Incident"
>> INSPECTION END
Ignition coil
Ground
Voltage
Cylinder
Connector
Terminal
1
F33
3
Ground
Battery voltage
2
F34
3
3
F35
3
4
F36
3
Ignition coil
Ground
Continuity
Cylinder
Connector
Terminal
1
F33
2
Ground
Existed
2
F34
2
3
F35
2
4
F36
2
Ignition coil
ECM
Continuity
Cylinder
Connector
Terminal
Connector
Terminal
1
F33
1
F7
17
Existed
2
F34
1
18
3
F35
1
22
4
F36
1
21
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст