2014 NISSAN TEANA battery

EC-494
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P2610 ECM INTERNAL TIMER
P2610 ECM INTERNAL TIMER
DescriptionINFOID:0000000009462425
This ECM contains a timer and measures time betw
een an ignition switch OFF and the next ignition switch
ON. This enables the judging of the state of engine cooling at an engine start.
DTC LogicINFOID:0000000009462426
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.INSPECTION START
It is necessary to erase permanent DTC?
YES >> GO TO 4.
NO >> GO TO 2.
2.PRECONDITIONING
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
TESTING CONDITION:
Before performing the following pr ocedure, confirm that battery voltage is 12 V or more under ignition
switch OFF condition.
>> GO TO 3.
3.PERFORM DTC CONFIRMATION PROCEDURE-I
1. Turn ignition switch ON and wait at least 190 seconds.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-495, "Diagnosis Procedure".
NO >> INSPECTION END
4.PRECONDITIONING
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
TESTING CONDITION:
• Before performing the following procedure, confirm that battery voltage is 12 V or more under igni-
tion switch OFF condition.
• Before performing the followin g procedure, check that fuel level is between 2/8 and 7/8.
>> GO TO 5.
5.PERFORM DTC CONFIRMATION PROCEDURE-I
1. Turn ignition switch ON and wait at least 190 seconds.
DTC No. CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition Possible cause
P2610 ECM/PCM INTERNAL ENG
OFF TIMER
(ECM/PCM internal engine off
timer performance) • ECM internal engine off timer is malfunction-
ing.
• The time calculated by ECM based on a de- scent allowance of engine coolant tempera-
tures during ignition switch OFF is extremely
shorter than the time counted by the Engine
internal OFF timer. ECM
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-496
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
BRAKE PEDAL POSITION SWITCH
BRAKE PEDAL POSITION SWITCH
Component Function CheckINFOID:0000000009462428
1.CHECK BRAKE PEDAL POSI
TION SWITCH FUNCTION
With CONSULT
1. Turn ignition switch ON.
2. Select “BRAKE SW1” in “D ATA MONITOR” mode with CONSULT.
3. Check “BRAKE SW1” indication as per the following conditions.
Without CONSULT
1. Turn ignition switch ON.
2. Check the voltage between ECM harness connector terminals.
*1: Except for California
*2: For California
Is the inspection result normal?
YES >> INSPECTION END
NO >> Proceed to EC-496, "Diagnosis Procedure"
.
Diagnosis ProcedureINFOID:0000000009462429
1.CHECK BRAKE PEDAL POSITION SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect brake pedal position switch harness connector.
3. Turn ignition switch ON.
4. Check the voltage between brake pedal pos ition switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK BRAKE PEDAL POSITION SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect fuse block (J/B) harness connector.
3. Check the continuity between brake pedal position switch harness connector and fuse block (J/B) harness connector.
Monitor item Condition Indication
BRAKE SW1 Brake pedal Slightly depressed OFF
Fully released ON
ECM Condition Voltage
Connector +–
Te r m i n a l
E10
*1
E31*2116 128 Brake pedal Slightly depressed Approx. 0 V
Fully released Battery voltage
+ -Voltage
Brake pedal position switch
Connector Terminal E51 1 Ground Battery voltage
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

COOLING FANEC-499
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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COOLING FAN
Component Function CheckINFOID:0000000009462431
1.CHECK COOLING FAN FUNCTION
With CONSULT
1. Turn ignition switch ON.
2. Perform “COOLING FAN” in “ACTIVE TE ST” mode of “ENGINE” using CONSULT.
3. Touch “LOW”, “MID”, “HI” on the CONSULT screen.
4. Check that cooling fan operates.
Without CONSULT
1. Activates IPDM E/R auto active test and check cooling fan motors operation, refer to PCS-8, "Diagnosis
Description".
2. Check that cooling fan operates.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Proceed to EC-499, "Diagnosis Procedure"
.
Diagnosis ProcedureINFOID:0000000009462432
1.CHECK COOLING FAN RELAY POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect cooling fan relays-2, -3.
3. Turn ignition switch ON.
4. Check the voltage between cooling fan relays-2, -3 harness con- nectors and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Perform trouble diagnosis for power supply circuit.
2.CHECK COOLING FAN RELAY OUTPUT SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connectors.
3. Check the continuity between cooling fan relay- 2, -3 harness connectors and IPDM E/R harness connec-
tor.
4. Also check harness for short to ground and to power.
Is the inspection result normal?
+
−Voltag e
Cooling fan relay
Connector Terminal
E42
(cooling fan relay-2) 2
Ground Battery voltage
5
E43
(cooling fan relay-3) 2
5
PBIB0071E
+ −
Continuity
Cooling fan relay IPDM E/R
Connector Terminal Connector Terminal E42
(cooling fan relay-2) 1
E63 27
Existed
E43
(cooling fan relay-3) 139
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-500
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
COOLING FAN
YES >> GO TO 3.
NO >> Repair or replace error-detected parts.
3.CHECK COOLING FAN MOTOR POWER SUPPLY CIRCUIT
1. Disconnect cooling fan motor-1 harness connector.
2. Check the voltage between cooling fan motor-1 harness con- nector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Perform trouble diagnosis for power supply circuit.
4.CHECK COOLING FAN MOTOR CIRCUIT-1
1. Disconnect cooling fan motor-2 harness connector.
2. Check the continuity between cooling fan relay-2, -3 harness connectors and cooling fan motor-1, -2 har-
ness connectors.
3. Also check harness for short to ground and to power.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair or replace error-detected parts.
5.CHECK COOLING FAN MOTOR CIRCUIT-2
1. Check the continuity between IPDM E/R harness connector and cooling fan motor-1, -2 harness connec-
tor.
2. Also check harness for short to ground and to power.
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair or replace error-detected parts.
+
−Voltag e
Cooling fan motor-1
Connector Terminal
E220 1
Ground Battery voltage
2
PBIB1670E
+ −
Continuity
Cooling fan relay Cooling fan motor
Connector Terminal Connector Terminal
E42
(cooling fan relay-2) 3
E221
(Cooling fan motor-2) 2
Existed
7
E220
(Cooling fan motor-1) 3
E43
(cooling fan relay-3) 3
E221
(Cooling fan motor-2) 1
7 E220
(Cooling fan motor-1) 4
+
−
Continuity
IPDM E/R Cooling fan motor
Connector Terminal Connector Terminal
E17 4
E220
(Cooling fan motor-1) 4
Existed
6 E221
(Cooling fan motor-2) 1
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-502
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
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
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

FUEL INJECTOREC-505
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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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
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-508
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
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.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

FUEL PUMPEC-509
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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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
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM