NISSAN TEANA 2014 Service Manual

COOLING FANEC-501
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6.CHECK COOLING FAN MOTOR CIRCUIT-3
1. Check the continuity between cooling f an relay-2, -3 harness connectors and ground.
2. Also check harness for short to ground and to power.
Is the inspection result normal?
YES >> GO TO 7.
NO >> Repair or replace error-detected parts.
7.CHECK COOLING FAN MOTOR CIRCUIT-4
1. Check the continuity between cooli ng fan motor-2 harness connector and ground.
2. Also check harness for short to ground and to power.
Is the inspection result normal?
YES >> GO TO 8.
NO >> Repair or replace error-detected parts.
8.CHECK COOLING FAN RELAY-2 AND -3
Refer to EC-502, "Component Inspection (Cooling Fan Relay)"
.
Is the inspection result normal?
YES >> GO TO 9.
NO >> Replace malfunctioning cooling fan relay.
9.CHECK COOLING FAN MOTORS-1 AND -2
Refer to EC-501, "Component Inspection (Cooling Fan Motor)"
.
Is the inspection result normal?
YES >> GO TO 10.
NO >> Replace malfunctioning cooling fan motor. Refer to CO-18, "Removal and Installation"
.
10.CHECK INTERMITTENT INCIDENT
Perform GI-43, "Intermittent Incident"
.
Is the inspection result normal?
YES >> Replace IPDM E/R. Refer to PCS-32, "Removal and Installation".
NO >> Repair or replace error-detected parts.
Component Inspection (Cooling Fan Motor)INFOID:0000000009462433
1.CHECK COOLING FAN MOTOR
1. Turn ignition switch OFF.
2. Disconnect cooling fan motor harness connector.
+
−Continuity
Cooling fan relay
Connector Terminal E42
(cooling fan relay-2) 6
Ground Existed
E43
(cooling fan relay-3) 6
+
−Continuity
Cooling fan motor-2
Connector Terminal
E221 3
Ground Existed
4
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EC-502
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COOLING FAN
3. Supply cooling fan motor terminals with battery voltage and
check operation.
Check that cooling fan speed of cond ition B is higher than that of A.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace cooling fan motor. Refer to CO-18, "Removal and Installation"
.
Component Inspection (Cooling Fan Relay)INFOID:0000000009462434
1.CHECK COOLING FAN RELAYS
1. Turn ignition switch OFF.
2. Remove cooling fan relay-2, -3.
3. Check the continuity between cooling fan relay-2, -3 terminals as per the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace cooling fan relay.
Cooling fan motor
Condition
Te r m i n a l
+– 1 3 and 4
A
2 3 and 4
1 and 2 3
1 and 2 4 1, 2 3, 4 B
SEF734W
Cooling fan relay-2, -3 Conditions Continuity
+ −
Te r m i n a l
35 12V direct current supply between termi-
nals 1 and 2 Existed
No current supply Not existed
67 12V direct current supply between termi-
nals 1 and 2 Existed
No current supply Not existed
PBIB0439E
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ELECTRICAL LOAD SIGNALEC-503
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ELECTRICAL LOAD SIGNAL
DescriptionINFOID:0000000009462435
The electrical load signal (Headlamp switch signal, rear
window defogger switch signal, etc.) is transferred via
the CAN communication.
Component Function CheckINFOID:0000000009462436
1.CHECK REAR WINDOW DEF OGGER SWITCH FUNCTION
1. Turn ignition switch ON.
2. Connect CONSULT and select “DATA MONITOR” mode.
3. Select “LOAD SIGNAL” and check indication under the following conditions.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Proceed to EC-503, "Diagnosis Procedure"
.
2.CHECK LIGHTING SWITCH FUNCTION
Check “LOAD SIGNAL” indication under the following conditions.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Proceed to EC-503, "Diagnosis Procedure"
.
3.CHECK HEATER FAN CONTROL SWITCH FUNCTION
Select “HEATER FAN SW” and check indication under the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Proceed to EC-503, "Diagnosis Procedure"
.
Diagnosis ProcedureINFOID:0000000009462437
1.INSPECTION START
Confirm the malfunctioning circuit (rear window defogger, headlamp or heater fan). Refer to EC-503, "Compo-
nent Function Check".
Which circuit is related to the incident?
Rear window defogger>>GO TO 2.
Headlamp>>GO TO 3.
Heater fan>>GO TO 4.
2.CHECK REAR WINDOW DEFOGGER SYSTEM
Check rear window defogger system. Refer to DEF-16, "Work Flow"
.
Monitor item Condition Indication
LOAD SIGNAL Rear window defogger switch ON ON
OFF OFF
Monitor item Condition Indication
LOAD SIGNAL Lighting switch ON at 2nd position ON
OFF OFF
Monitor item Condition Indication
HEATER FAN SW Heater fan control switchON ON
OFF OFF
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EC-504
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ELECTRICAL LOAD SIGNAL
>> INSPECTION END
3.CHECK HEADLAMP SYSTEM
Check headlamp system. Refer to EXL-86, "Work Flow"
.
>> INSPECTION END
4.CHECK HEATER FAN CONTROL SYSTEM
Check heater fan control system. Refer to HAC-46, "Work Flow"
(with automatic air conditioner) or HAC-139,
"Work Flow" (with manual air conditioner).
>> INSPECTION END
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FUEL INJECTOREC-505
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FUEL INJECTOR
Component Function CheckINFOID:0000000009462438
1.INSPECTION START
Turn ignition switch to START.
Are any cylinders ignited?
YES >> GO TO 2.
NO >> Proceed to EC-505, "Diagnosis Procedure"
.
2.CHECK FUEL INJECTOR FUNCTION
With CONSULT
1. Start engine.
2. Perform “POWER BALANCE” in “ACTIVE TEST” mode with CONSULT.
3. Check that each circuit produces a momentary engine speed drop.
Without CONSULT
1. Start engine.
2. Listen to each fuel injector operating sound.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Proceed to EC-505, "Diagnosis Procedure"
.
Diagnosis ProcedureINFOID:0000000009462439
1.CHECK FUEL INJECTOR POWER SUPPLY
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.CHECK FUEL INJECTOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector.
3. Check the continuity between fuel injector harness connector and IPDM E/R harness connector.
Clicking sound should be heard.
PBIB3332E
+
-Voltage
Fuel injector
Cylinder Connector Terminal 1F171
Ground Battery voltage
2F181
3F191
4F201
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EC-506
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FUEL INJECTOR
Is the inspection result normal?
YES >> Perform the trouble diagnosis for power supply circuit.
NO >> Repair or replace error-detected parts.
3.CHECK FUEL INJECTOR OUTPUT SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between fuel inje ctor harness connector and ECM harness connector.
*1: Except for California
*2: For California
4. Also check harness for short to ground and to power.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
4.CHECK FUEL INJECTOR
Check fuel injector. Refer to EC-506, "Component Inspection"
.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace malfunctioning fuel injector. Refer to EM-41, "Exploded View"
.
5.CHECK INTERMITTENT INCIDENT
Check intermittent incident. Refer to GI-43, "Intermittent Incident"
.
Is the inspection result normal?
YES >> Replace IPDM E/R. Refer to PCS-32, "Removal and Installation".
NO >> Repair or replace error-detected parts.
Component InspectionINFOID:0000000009462440
1.CHECK FUEL INJECTOR
1. Turn ignition switch OFF.
2. Disconnect fuel injector harness connector.
+-
Continuity
Fuel injector IPDM E/R
Cylinder Connector Terminal Connector Terminal 1F171
F8354
Existed
2F181 60
3F191 54
4F201 60
+- Continuity
Fuel injector ECM
Cylinder Connector Terminal Connector Terminal 1F172
F14
*1
F91*2
13
Existed
2F182 14
3F192 10
4F202 9
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FUEL INJECTOREC-507
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3. Check resistance between fuel injector terminals as per the fol-
lowing.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace malfunctioning fuel injector. Refer to EM-41,
"Removal and Installation".
Fuel injector
Resistance
+-
Te r m i n a l
1 2 11.1 - 14.5 Ω [at 10 - 60 °C (50 - 140 °F)]
PBIA9579J
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EC-508
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FUEL PUMP
FUEL PUMP
DescriptionINFOID:0000000009462441
*: ECM determines the start signal status by the signals of engine speed and battery voltage.
The ECM activates the fuel pump for several seconds after the ignition switch is turned ON to improve engine
start ability. If the ECM receives a engine speed signal from the camshaft position sensor (PHASE), it knows
that the engine is rotating, and causes the pump to operate. If the engine speed signal is not received when
the ignition switch is ON, the engine stalls. The EC M stops pump operation and prevents battery discharging,
thereby improving safety. The ECM does not directly driv e the fuel pump. It controls the ON/OFF fuel pump
relay, which in turn controls the fuel pump.
Component Function CheckINFOID:0000000009462442
1.CHECK FUEL PUMP FUNCTION
1. Turn ignition switch ON.
2. Pinch fuel feed hose with two fingers.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Proceed to EC-508, "Diagnosis Procedure"
.
Diagnosis ProcedureINFOID:0000000009462443
1.CHECK FUEL PUMP RELAY CONTROL SIGNAL
1. Turn ignition switch ON.
2. Check the voltage between ECM harness connector.
*1: Except for California
*2: For California
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK FUEL PUMP RELAY CONTROL SIGNAL CIRCUIT
1. Turn ignition switch OFF.
Sensor Input signal to ECM ECM Function Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE) Engine speed*
Fuel pump controlFuel pump relay
↓
Fuel pump
Battery Battery voltage*
Condition Fuel pump operation
Ignition switch is turned to ON. Operates for 1 second.
Engine running and cranking Operates.
When engine is stopped Stops in 1.5 seconds.
Except as shown above Stops.
Fuel pressure pulsation should be felt on the fuel feed
hose for 1 second after igniti on switch is turned ON.
ECM
Vo l ta g e
+-
Connector Terminal Connector Terminal
F14
*1
F91*218 E10*1
E31*2128Battery voltage should exist 1 second after
ignition switch is turn ON.
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FUEL PUMPEC-509
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2. Disconnect ECM harness connector.
3. Disconnect IPDM E/R harness connector.
4. Check the continuity between ECM harness connector and IPDM E/R harness connector.
*1: Except for California
*2: For California
5. Also check harness for short to ground and to power.
Is the inspection result normal?
YES >> GO TO 7.
NO >> Repair or replace error-detected parts.
3.CHECK FUEL PUMP POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect “fuel level sensor unit and fuel pump” harness connector.
3. Turn ignition switch ON.
4. Check the voltage between “fuel level sensor unit and fuel pump” harness connector and ground.
Is the inspection result normal?
YES >> GO TO 5.
NO >> GO TO 4.
4.CHECK FUEL PUMP POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector.
3. Check the continuity between IP DM E/R harness connector and “fuel level sensor unit and fuel pump”
harness connector.
4. Also check harness for short to ground and to power.
Is the inspection result normal?
YES >> GO TO 7.
NO >> Repair or replace error-detected parts.
5.CHECK FUEL PUMP GROUND CIRCUIT
1. Check the continuity between “fuel le vel sensor unit and fuel pump” and ground.
+-
Continuity
ECM IPDM E/R
Connector Terminal Connector Terminal
F14
*1
F91*218 F84 69 Existed
+
-Voltage
Fuel level sensor unit
and fuel pump
Connector Terminal
B42 6 Ground Battery voltage should exist 1 second
after ignition switch is turn ON.
+-
Continuity
IPDM E/R Fuel level sensor unit and
fuel pump
Connector Terminal Connector Terminal E1815B42 6Existed
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EC-510
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FUEL PUMP
2. Also heck harness for short to power.
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair or replace error-detected parts.
6.CHECK FUEL PUMP
Refer to EC-510, "Component Inspection"
.
Is the inspection result normal?
YES >> GO TO 7.
NO >> Replace “fuel level sensor unit and fuel pump”. Refer to FL-6, "Removal and Installation"
.
7.CHECK INTERMITTENT INCIDENT
Perform GI-43, "Intermittent Incident"
.
Is the inspection result normal?
YES >> Replace IPDM E/R. Refer to PCS-32, "Removal and Installation".
NO >> Repair or replace harness or connectors.
Component InspectionINFOID:0000000009462444
1.CHECK FUEL PUMP
1. Turn ignition switch OFF.
2. Disconnect “fuel level sensor uni t 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”. Refer to FL-6, "Removal and Installation"
.
+
-Continuity
Fuel level sensor unit and fuel pump
Connector Terminal B42 4 Ground Existed
Fuel level sensor unit and fuel pump Resistance
+-
Te r m i n a l
6 4 0.2 - 5.0 Ω [at 25 °C (77 °F)]
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