2008 NISSAN TEANA fuel pump

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]
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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

EC-340
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
FUEL PUMP
YES >> GO TO 13.
NO >> Repair open circuit or short to power in harness or connectors.
13.CHECK FUEL PUMP
Refer to EC-340, "
Component Inspection (Fuel Pump)".
Is the inspection result normal?
YES >> GO TO 14.
NO >> Replace fuel pump.
14.CHECK INTERMITTENT INCIDENT
Refer to GI-35, "
Intermittent Incident".
Is the inspection result normal?
YES >> Replace IPDM E/R.
NO >> Repair or replace harness or connectors.
Component Inspection (Fuel Pump)INFOID:0000000003856846
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”
Component Inspection (Condenser)INFOID:0000000003856847
1.CHECK CONDENSER
1. Turn ignition switch OFF.
2. Disconnect condenser harness connector.
3. Check resistance between condenser terminals as per the following.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace condenser.
Terminals Resistance
1 and 3 0.2 - 5.0 Ω [at 25°C (77°F)]
Terminals Resistance
1 and 2 Above 1 MΩ [at 25°C (77°F)]

EC-344
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
IGNITION SIGNAL
YES >> GO TO 10.
NO >> Replace malfunctioning ignition coil with power transistor.
10.CHECK INTERMITTENT INCIDENT
Refer to GI-35, "
Intermittent Incident".
>> INSPECTION END
Component Inspection (Ignition Coil with Power Transistor)INFOID:0000000003856851
1.CHECK IGNITION COIL WITH POWER TRANSISTOR-I
1. Turn ignition switch OFF.
2. Disconnect ignition coil harness connector.
3. Check resistance between ignition coil terminals as per the following.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace malfunctioning ignition coil with power transistor.
2.CHECK IGNITION COIL WITH POWER TRANSISTOR-II
CAUTION:
Perform the following procedure in a place with no combustible objects and good ventilation.
1. Turn ignition switch OFF.
2. Reconnect all harness connectors disconnected.
3. Remove fuel pump fuse in IPDM E/R to release fuel pressure.
NOTE:
Do not use CONSULT-III to release fuel pressure, or fuel pressure applies again during the following pro-
cedure.
4. Start engine.
5. After engine stalls, crank it 2 or 3 times to release all fuel pressure.
6. Turn ignition switch OFF.
7. Remove all ignition coil harness connectors to avoid the electrical discharge from the ignition coils.
8. Remove ignition coil and spark plug of the cylinder to be checked.
9. Crank engine for 5 seconds or more to remove combustion gas in the cylinder.
10. Connect spark plug and harness connector to ignition coil.
11. Fix ignition coil using a rope etc. with gap of 13 - 17 mm (0.52 -
0.66 in) between the edge of the spark plug and grounded metal
portion as shown in the figure.
12. Crank engine for about 3 seconds, and check whether spark is
generated between the spark plug and the grounded metal por-
tion.
CAUTION:
 Never place to the spark plug and the ignition coil within
50 cm (19.7 in) each other. Be careful not to get an electri-
cal shock while checking, because the electrical dis-
charge voltage becomes 20 kV or more.
 It might damage the ignition coil if the gap of more than 17 mm (0.66 in) is made.
NOTE:
When the gap is less than 13 mm (0.52 in), a spark might be generated even if the coil is a malfunc-
tioning.
Is the inspection result normal?
Terminal No. (Polarity) Resistance Ω [at 25°C (77°F)]
1 and 2 Except 0 or ∞
1 and 3
Except 0
2 and 3
Spark should be generated.
JMBIA0066GB

ECM
EC-359
< ECU DIAGNOSIS >[VQ25DE, VQ35DE]
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INT/V TIM (B1) Engine: After warming up
 Selector lever: P or N
 Air conditioner switch: OFF
No loadIdle−5° - 5°CA
2,000 rpm Approx. 0° - 30°CA
INT/V TIM (B2) Engine: After warming up
 Selector lever: P or N
 Air conditioner switch: OFF
No loadIdle−5° - 5°CA
2,000 rpm Approx. 0° - 30°CA
INT/V SOL (B1) Engine: After warming up
 Selector lever: P or N
 Air conditioner switch: OFF
No loadIdle 0% - 2%
2,000 rpm Approx. 0% - 50%
INT/V SOL (B2) Engine: After warming up
 Selector lever: P or N
 Air conditioner switch: OFF
No loadIdle 0% - 2%
2,000 rpm Approx. 0% - 50%
VIAS S/V-1 Engine: After warming up
 Selector lever: P or N
 Air conditioner switch: OFF
No loadWhen revving engine up to 5,000 rpm
quicklyOFF →ON → OFF
VIAS S/V-2 Engine: After warming up
 Selector lever: P or N
 Air conditioner switch: OFF
No loadWhen revving engine up to 5,000 rpm
quicklyOFF →ON → OFF
AIR COND RLY Engine: After warming up, idle the
engineAir conditioner switch: OFF OFF
Air conditioner switch: ON
(Compressor operates)ON
ENGINE MOUNT  Engine: After warming upBelow 950 rpm IDLE
Above 950 rpm TRVL
FUEL PUMP RLY For 1 second after turning ignition switch: ON
 Engine running or crankingON
 Except above OFF
THRTL RELAY  Ignition switch: ON ON
COOLING FAN Engine: After warming up, idle the
engine
 Air conditioner switch: OFFEngine coolant temperature: 97°C
(206°F) or lessOFF
Engine coolant temperature: Between
98°C (208°F) and 99°C (210
°F)LOW
Engine coolant temperature: Between
100°C (212°F) and 104°C (219°F)MID
Engine coolant temperature: 105°C
(221°F) or moreHI
HO2S2 HTR (B1) Engine speed: Below 3,600 rpm after the following conditions are met.
- Engine: After warming up
- Keeping the engine speed between 3,500 and 4,000 rpm for 1 minute and at
idle for 1 minute under no loadON
 Engine speed: Above 3,600 rpm OFF
HO2S2 HTR (B2) Engine speed: Below 3,600 rpm after the following conditions are met.
- Engine: After warming up
- Keeping the engine speed between 3,500 and 4,000 rpm for 1 minute and at
idle for 1 minute under no loadON
 Engine speed: Above 3,600 rpm OFF
I/P PULLY SPD  Vehicle speed: More than 20km/h (12 MPH)Almost the same speed as
the tachometer indication
VEHICLE SPEED Turn drive wheels and compare CONSULT-III value with the speedometer in-
dication.Almost the same speed as
the speedometer indication Monitor Item Condition Values/Status

ECM
EC-363
< ECU DIAGNOSIS >[VQ25DE, VQ35DE]
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13
(P/B)11 2
(B)Heated oxygen sensor 2 heat-
er (Bank 1)Output[Engine is running]
 Engine speed: Below 3,600
rpm after the following condi-
tions are met
- Engine: after warming up
- Keeping the engine speed be-
tween 3,500 and 4,000 rpm
for 1 minute and at idle for 1
minute under no load10 V
[Ignition switch: ON]
 Engine stopped
[Engine is running]
 Engine speed: Above 3,600
rpmBATTERY VOLTAGE
(11 - 14 V)
14
(GR)11 2
(B)Fuel pump relay Output[Ignition switch: ON]
 For 1 second after turning ig-
nition switch ON
[Engine is running]0 - 1.5 V
[Ignition switch: ON]
 More than 1 second after turn-
ing ignition switch ONBATTERY VOLTAGE
(11 - 14 V)
15
(O)11 2
(B)Throttle control motor relay Output[Ignition switch: ON → OFF]0 - 1.0 V → BATTERY VOLTAGE
(11 - 14 V) → 0 V
[Ignition switch: ON] 0 - 1.0 V
16
(B/Y)— ECM ground — — —
17
(R)11 2
(B)Heated oxygen sensor 2 heat-
er (Bank 2)Output[Engine is running]
 Engine speed: Below 3,600
rpm after the following condi-
tions are met
- Engine: after warming up
- Keeping the engine speed be-
tween 3,500 and 4,000 rpm
for 1 minute and at idle for 1
minute under no load10 V
[Ignition switch: ON]
 Engine stopped
[Engine is running]
 Engine speed: Above 3,600
rpmBATTERY VOLTAGE
(11 - 14 V)
24
(W/B)11 2
(B)ECM relay
(Self shut-off)Output[Engine is running]
[Ignition switch: OFF]
 A few seconds after turning
ignition switch OFF0 - 1.5 V
[Ignition switch: OFF]
 More than a few seconds after
turning ignition switch OFFBATTERY VOLTAGE
(11 - 14 V) Terminal No. Description
ConditionVa l u e
(Approx.)
+-– Signal nameInput/
Output
JMBIA0902GB
JMBIA0902GB

EC-400
< SYMPTOM DIAGNOSIS >[VQ25DE, VQ35DE]
ENGINE CONTROL SYSTEM SYMPTOMS
SYMPTOM DIAGNOSIS
ENGINE CONTROL SYSTEM SYMPTOMS
Symptom TableINFOID:0000000003856875
SYSTEM — BASIC ENGINE CONTROL SYSTEM
SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
Fuel Fuel pump circuit 11232 22 3 2EC-337
Fuel pressure regulator system 334444444 4EC-411
Fuel injector circuit 11232 22 2EC-334
Evaporative emission system 334444444 4EC-76
Air Positive crankcase ventilation sys-
tem
334444444 41EC-347
Incorrect idle speed adjustment 1 1 1 1 1EC-11
Electric throttle control actuator 112332222 2 2EC-296,
EC-302
IgnitionIncorrect ignition timing adjustment33111 11 1EC-11
Ignition circuit 11222 22 2EC-341
Power supply and ground circuit 22333 33 23EC-132
Mass air flow sensor circuit
1
122
222 2EC-149
Engine coolant temperature sensor circuit
333EC-157
Air fuel ratio (A/F) sensor 1 circuitEC-163
,
EC-167
,
EC-170
,
EC-173
,
EC-318
Throttle position sensor circuit
22EC-160
,
EC-206
,
EC-254
,
EC-256
,
EC-311
Accelerator pedal position sensor circuit 3 2 1EC-243
,
EC-304
,
EC-307
,
EC-314
Knock sensor circuit 2 3EC-215

ENGINE CONTROL SYSTEM SYMPTOMS
EC-403
< SYMPTOM DIAGNOSIS >[VQ25DE, VQ35DE]
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1 - 6: The numbers refer to the order of inspection.Va l v e
mecha-
nismTiming chain
55555 55 5EM-65
CamshaftEM-84
Intake valve timing controlEM-65
Intake valve
3EM-97
Exhaust valve
Exhaust Exhaust manifold/Tube/Muffler/
Gasket
55555 55 5EM-34
, EX-
4Three way catalyst
Lubrica-
tionOil pan/Oil strainer/Oil pump/Oil
filter/Oil gallery/Oil cooler
55555 55 5LU-7
, LU-
10, LU-11,
LU-13
Oil level (Low)/Filthy oilLU-7
Cooling
Radiator/Hose/Radiator filler cap
55555 55 45CO-12,
CO-12
Thermostat 5CO-23
Water pumpCO-18
Water galleryCO-2
Cooling fan
5CO-16
Coolant level (Low)/Contaminat-
ed coolantCO-8
NVIS (NISSAN Vehicle Immobilizer System —
NATS)11SEC-14
SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA