B81 NISSAN TEANA 2008 Service Manual

EC-338
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
FUEL PUMP
2.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-II
Check the voltage between IPDM E/R harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 14.
3.DETECT MALFUNCTIONING PART
Check the following.
 IPDM E/R harness connector F12
 Harness for open or short between IPDM E/R and ECM
>> Repair open circuit, short to ground or short to power in harness or connectors.
4.CHECK CONDENSER POWER SUPPLY CIRCUIT-I
1. Turn ignition switch OFF.
2. Reconnect all harness connectors disconnected.
3. Disconnect condenser harness connector.
4. Turn ignition switch ON.
5. Check the voltage between condenser harness connector and ground.
Is the inspection result normal?
YES >> GO TO 8.
NO >> GO TO 5.
5.CHECK 15A FUSE
1. Turn ignition switch OFF.
2. Disconnect 15A fuse (No. 41).
3. Check 15A fuse.
Is the inspection result normal?
YES >> GO TO 6.
NO >> Replace 15A fuse.
6.CHECK CONDENSER POWER SUPPLY CIRCUIT-II
1. Disconnect IPDM E/R harness connector.
2. Check the continuity between IPDM E/R harness connector and condenser harness connector.
3. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 14.
NO >> GO TO 7.
7.DETECT MALFUNCTIONING PART
IPDM E/R
Ground Voltage
Connector Terminal
F12 77 Ground Battery voltage
Condenser
Ground Voltage
Connector Terminal
B81 1 GroundBattery voltage should exist for 1 second
after ignition switch is turned ON.
IPDM E/R Condenser
Continuity
Connector Terminal Connector Terminal
E1013B81 1 Existed

FUEL PUMP
EC-339
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
Check the following.
 Harness connectors E104, B4
 IPDM E/R connector E10
 Harness for open or short between IPDM E/R and condenser
>> Repair open circuit or short to power in harness or connectors.
8.CHECK CONDENSER GROUND CIRCUIT
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 9.
NO >> Repair open circuit or short to power in harness or connectors.
9.CHECK CONDENSER
Refer to EC-340, "
Component Inspection (Condenser)".
Is the inspection result normal?
YES >> GO TO 10.
NO >> Replace condenser.
10.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-III
1. Disconnect “fuel level sensor unit and fuel pump” harness connector.
2. Check harness continuity between IPDM E/R harness connector and “fuel level sensor unit and fuel
pump” harness connector.
Is the inspection result normal?
YES >> GO TO 12.
NO >> GO TO 11.
11 .DETECT MALFUNCTIONING PART
Check the following.
 Harness connectors B4, E104
 Harness for open or short between “fuel level sensor unit and fuel pump” and IPDM E/R
>> Repair open circuit or short to power in harness or connectors.
12.CHECK FUEL PUMP GROUND CIRCUIT
1. Disconnect “fuel level sensor unit and fuel pump” harness connector.
2. Check the continuity between “fuel level sensor unit and fuel pump” harness connector and ground.
Is the inspection result normal?
Condenser
Ground Continuity
Connector Terminal
B81 2 Ground Existed
IPDM E/RFuel level sensor unit and fuel
pump
Continuity
Connector Terminal Connector Terminal
E1013B40 1 Existed
Fuel level sensor unit and fuel
pump
Ground Continuity
Connector Terminal
B40 3 Ground Existed