2014 NISSAN TEANA relay

EC-12
Diagnosis Procedure .............................................865
P0462, P0463 FUEL LEVEL SENSOR ...........866
DTC Logic ............................................................ ..866
Diagnosis Procedure .............................................866
P0500 VSS .......................................................867
Description ........................................................... ..867
DTC Logic ..............................................................867
Diagnosis Procedure .............................................867
P0506 ISC SYSTEM ........................................869
Description ........................................................... ..869
DTC Logic ..............................................................869
Diagnosis Procedure .............................................869
P0507 ISC SYSTEM ........................................871
Description ........................................................... ..871
DTC Logic ..............................................................871
Diagnosis Procedure .............................................871
P050A, P050E COLD START CONTROL .......873
Description ........................................................... ..873
DTC Logic ..............................................................873
Diagnosis Procedure .............................................874
P0520 EOP SENSOR ......................................875
DTC Logic ............................................................ ..875
Diagnosis Procedure .............................................875
Component Inspection ...........................................877
P0524 ENGINE OIL PRESSURE ....................878
DTC Logic ............................................................ ..878
Diagnosis Procedure .............................................879
Component Inspection ...........................................880
P0603 ECM POWER SUPPLY ........................881
DTC Logic ............................................................ ..881
Diagnosis Procedure .............................................881
P0605 ECM ......................................................883
DTC Logic ............................................................ ..883
Diagnosis Procedure .............................................883
P0607 ECM ......................................................884
DTC Logic ............................................................ ..884
Diagnosis Procedure .............................................884
P0643 SENSOR POWER SUPPLY .................885
Description ........................................................... ..885
DTC Logic ..............................................................885
Diagnosis Procedure .............................................885
P0850 PNP SWITCH .......................................887
Description ........................................................... ..887
DTC Logic ..............................................................887
Component Function Check ..................................888
Diagnosis Procedure .............................................888
P1148, P1168 CLOSED LOOP CONTROL .....890
DTC Logic ............................................................ ..890
P1212 TCS COMMUNICATION LINE ..............891
Description ........................................................... .891
DTC Logic .............................................................891
Diagnosis Procedure .............................................891
P1217 ENGINE OVER TEMPERATURE .........892
DTC Logic ............................................................ .892
Component Function Check .................................892
Diagnosis Procedure .............................................893
P1225 TP SENSOR ..........................................895
DTC Logic ............................................................ .895
Diagnosis Procedure .............................................895
P1226 TP SENSOR ..........................................896
DTC Logic ............................................................ .896
Diagnosis Procedure .............................................896
P1550 BATTERY CURRENT SENSOR ...........897
DTC Logic ............................................................ .897
Diagnosis Procedure .............................................897
Component Inspection ..........................................898
P1551, P1552 BATTERY CURRENT SEN-
SOR ................................................................ ..
899
DTC Logic ............................................................ .899
Diagnosis Procedure .............................................899
Component Inspection ..........................................900
P1553 BATTERY CURRENT SENSOR ...........901
DTC Logic ............................................................ .901
Diagnosis Procedure .............................................901
Component Inspection ..........................................902
P1554 BATTERY CURRENT SENSOR ...........903
DTC Logic ............................................................ .903
Component Function Check .................................903
Diagnosis Procedure .............................................903
Component Inspection ..........................................904
P1556, P1557 BATTERY TEMPERATURE
SENSOR ......................................................... ..
906
DTC Logic ............................................................ .906
Diagnosis Procedure .............................................906
Component Inspection (Battery Temperature
Sensor) ................................................................ .
907
P1564 ASCD STEERING SWITCH ..................908
DTC Logic ............................................................ .908
Diagnosis Procedure .............................................908
Component Inspection ..........................................910
P1572 ASCD BRAKE SWITCH ........................911
Description ........................................................... .911
DTC Logic .............................................................911
Component Function Check .................................912
Diagnosis Procedure .............................................913
Component Inspection (Brake Pedal Position
Switch) ................................................................. .
916
Component Inspection (Stop Lamp Switch) ..........916
Component Inspection (Stop Lamp Relay) ...........917
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EC-13
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P1574 ASCD VEHICLE SPEED SENSOR .... ..918
Description .......................................................... ..918
DTC Logic .............................................................918
Diagnosis Procedure .............................................918
P1800 VIAS CONTROL SOLENOID VALVE 1 ..920
DTC Logic ........................................................... ..920
Diagnosis Procedure .............................................920
Component Inspection ..........................................921
P1801 VIAS CONTROL SOLENOID VALVE 2 ..922
DTC Logic ........................................................... ..922
Diagnosis Procedure .............................................922
Component Inspection ..........................................923
P1805 BRAKE SWITCH ................................. ..924
Description .......................................................... ..924
DTC Logic .............................................................924
Diagnosis Procedure .............................................924
Component Inspection (Stop Lamp Switch) ..........926
Component Inspection (Stop Lamp Relay) ...........926
P2096, P2097, P2098, P2099 A/F SENSOR 1 ..927
DTC Logic ........................................................... ..927
Diagnosis Procedure .............................................927
P2100, P2103 THROTTLE CONTROL MO-
TOR RELAY ................................................... ..
931
DTC Logic ........................................................... ..931
Diagnosis Procedure .............................................931
P2101 ELECTRIC THROTTLE CONTROL
FUNCTION ..................................................... ..
933
DTC Logic ........................................................... ..933
Diagnosis Procedure .............................................933
Component Inspection ..........................................935
P2118 THROTTLE CONTROL MOTOR ..........936
DTC Logic ........................................................... ..936
Diagnosis Procedure .............................................936
Component Inspection ..........................................937
P2119 ELECTRIC THROTTLE CONTROL
ACTUATOR .................................................... ..
938
DTC Logic ........................................................... ..938
Diagnosis Procedure .............................................938
P2122, P2123 APP SENSOR ...........................940
DTC Logic ........................................................... ..940
Diagnosis Procedure .............................................940
Component Inspection ..........................................941
P2127, P2128 APP SENSOR ...........................942
DTC Logic ........................................................... ..942
Diagnosis Procedure .............................................942
Component Inspection ..........................................943
P2135 TP SENSOR ..........................................945
DTC Logic ........................................................... ..945
Diagnosis Procedure .............................................945
Component Inspection ..........................................946
P2138 APP SENSOR ......................................947
DTC Logic ............................................................ ..947
Diagnosis Procedure .............................................947
Component Inspection ...........................................949
BRAKE PEDAL POSITION SWITCH .............950
Component Function Check ..................................950
Diagnosis Procedure .............................................950
Component Inspection (Brake Pedal Position
Switch) ................................................................. ..
951
ASCD INDICATOR ..........................................952
Component Function Check ..................................952
Diagnosis Procedure .............................................952
COOLING FAN ................................................953
Component Function Check ..................................953
Diagnosis Procedure .............................................953
Component Inspection (Cooling Fan Motor) ..........955
Component Inspection (Cooling Fan Relay) ..........956
ELECTRICAL LOAD SIGNAL ........................957
Description .............................................................957
Component Function Check ..................................957
Diagnosis Procedure .............................................957
ELECTRONIC CONTROLLED ENGINE
MOUNT ............................................................
959
Component Function Check ................................ ..959
Diagnosis Procedure .............................................959
Component Inspection ...........................................960
FUEL INJECTOR ............................................962
Component Function Check ..................................962
Diagnosis Procedure .............................................962
Component Inspection ...........................................963
FUEL PUMP ....................................................965
Component Function Check ..................................965
Diagnosis Procedure .............................................965
Component Inspection ...........................................966
IGNITION SIGNAL ..........................................967
Component Function Check ..................................967
Diagnosis Procedure .............................................967
Component Inspection (Ignition Coil with Power
Transistor) ........................................................... ..
970
Component Inspection (Condenser) ......................971
INFORMATION DISPLAY (ASCD) .................972
Component Function Check ..................................972
Diagnosis Procedure .............................................972
MALFUNCTION INDICATOR LAMP ..............973
Component Function Check ..................................973
Diagnosis Procedure .............................................973
ON BOARD REFUELING VAPOR RECOV-
ERY (ORVR) ....................................................
974
Component Function Check ................................ ..974
Diagnosis Procedure .............................................974
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COMPONENT PARTSEC-21
< SYSTEM DESCRIPTION > [QR25DE]
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SYSTEM DESCRIPTION
COMPONENT PARTS
Component Parts LocationINFOID:0000000009462053
ENGINE ROOM COMPARTMENT
ALBIA0804ZZ
No. Component Function
EVAP canister purge volume control solenoid valve EC-34, "EVAP Canister Purge Volume Control Solenoid
Va l v e "
Transmission range switch• The transmission range switch is installed to upper part
of transaxle case.
• ECM detects the selector lever position because the continuity of the transmission range switch line (the
ON) exists.
ECM EC-25, "ECM"
Refrigerant pressure sensorEC-36, "Refrigerant Pressure Sensor"
Battery current sensor
(with battery temperature sensor) EC-35, "Battery Current Se
nsor (With Battery Tempera-
ture Sensor)"
IPDM E/R • IPDM E/R control the internal relays and the actuators.
-Refer to PCS-6, "RELAY CONTROL SYSTEM : Sys-tem Description".
• When CAN communication with ECM is impossible,
IPDM E/R performs fail-safe control.
-Refer to PCS-19, "Fail Safe"
.
Mass air flow sensor
(with intake air temperature sensor) EC-27, "Mass Air Flow Sensor (With Intake Air Tempera-
ture Sensor)"
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EC-26
< SYSTEM DESCRIPTION >[QR25DE]
COMPONENT PARTS
THROTTLE CONTROL MOTOR RELAY
Power supply for the throttle control motor is provided to
the ECM via throttle control motor relay. The throttle
control motor relay is ON/OFF controlled by the ECM. When the ignition switch is turned ON, the ECM sends
an ON signal to throttle control motor relay and battery voltage is provided to the ECM. When the ignition
switch is turned OFF, the ECM sends an OFF signal to throttle control motor relay and battery voltage is not
provided to the ECM.
THROTTLE CONTROL MOTOR
The throttle control motor is operated by the ECM and it opens and closes the throttle valve.
The current opening angle of the throttle valve is detected by the throttle position sensor and it provides feed-
back to the ECM to control the throttle control mo tor to make the throttle valve opening angle properly in
response to driving condition.
THROTTLE POSITION SENSOR
The throttle position sensor responds to the throttle valve movement.
The throttle position sensor has two sensors. These sensors are a
kind of potentiometers which transform the throttle valve position into
output voltage, and emit the voltage signal to the ECM. In addition,
these sensors detect the opening and closing speed of the throttle
valve and feed the voltage signals to the ECM. The ECM judges the
current opening angle of the throttle valve from these signals and the
ECM controls the throttle control motor to make the throttle valve
opening angle properly in response to driving condition.
Ignition Coil With Power TransistorINFOID:0000000009462057
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.
Fuel InjectorINFOID:0000000009462058
The fuel injector is a small, precise solenoid valve. When the ECM
supplies a ground to the fuel injector circuit, the coil in the fuel injec-
tor is energized. The energized coil pulls the ball valve back and
allows fuel to flow through the fuel injector into the intake manifold.
The amount of fuel injected depends upon the injection pulse dura-
tion. Pulse duration is the length of time the fuel injector remains
open. The ECM controls the injection pulse duration based on
engine fuel needs.
Fuel Level Sensor Unit and Fuel PumpINFOID:0000000009462059
FUEL PUMP
PBIB0145E
JPBIA4613ZZ
JPBIA5845ZZ
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SYSTEMEC-43
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MULTIPORT FUEL INJECTION SYSTEM
MULTIPORT FUEL INJECTION SYSTEM : S
ystem Description (with automatic air
P052A
P052B Intake valve timing intermedi-
ate lock control ——
× —
P0603 ECM power supply circuit — ×——
P0605 ECM — ×——
P0643 Sensor power supply ———ECM stops the electric throttle control actuator control, throttle
valve is maintained at a fixed opening (approx. 5 degrees) by
the return spring.
P1078 Exhaust valve timing control position sensor circuit ×
— × —
P1805 Brake switch
———ECM controls the electric throttle control actuator by regulat-
ing the throttle opening to a small range.
Therefore, acceleration will be poor.
Vehicle condition Driving condition
When engine is idling Normal When accelerating Poor acceleration
P2004 Intake manifold runner control valve —
×× —
P2100
P2103 Throttle contro
l motor relay
——— ECM stops the electric throttle control actuator control, throttle
valve is maintained at a fixed opening (approx. 5 degrees) by
the return spring.
P2101 Electric throttle control func- tion ——— ECM stops the electric throttle control actuator control, throttle
valve is maintained at a fixed opening (approx. 5 degrees) by
the return spring.
P2118 Throttle control motor ———ECM stops the electric throttle control actuator control, throttle
valve is maintained at a fixed opening (approx. 5 degrees) by
the return spring.
P2119 Electric thro ttle control actua-
tor —
×——
P2122
P2123
P2127
P2128
P2138 Accelerator pedal position
sensor
———The ECM controls the electric throttle control actuator in reg-
ulating the throttle opening in order for the idle position to be
within +10 degrees.
The ECM regulates the opening speed of the throttle valve to
be slower than the normal condition.
So, the acceleration will be poor.
DTC
No. Detected items Vehicle behavior
Pattern Others
ABC
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SYSTEMEC-59
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COOLING FAN CONTROL : System Descripti
on (with automatic air conditioner)
INFOID:0000000009462104
SYSTEM DIAGRAM
SYSTEM DESCRIPTION
ECM controls cooling fan speed corresponding to vehicle speed, engine coolant temperature, refrigerant pres-
sure, air conditioner ON signal. Then control syst em has 4-step control [HIGH/MIDDLE/LOW/OFF].
Cooling Fan Operation
Cooling Fan Relay Operation
The ECM controls cooling fan relays through CAN communication line.
JPBIA3233GB
JMBIA0179GB
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EC-60
< SYSTEM DESCRIPTION >[QR25DE]
SYSTEM
COOLING FAN CONTROL : S ystem Description (with manual air conditioner)
INFOID:0000000009462105
SYSTEM DIAGRAM
SYSTEM DESCRIPTION
ECM controls cooling fan speed corresponding to vehicle speed, engine coolant temperature, refrigerant pres-
sure, air conditioner ON signal. Then control syst em has 4-step control [HIGH/MIDDLE/LOW/OFF].
Cooling fan speed Cooling fan relay
123
Stop (OFF) OFF OFF OFF
Low (LOW) ON OFF OFF
Middle (MID) OFF ON OFF
High (HI) OFF ON ON
JPBIA6223GB
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SYSTEMEC-61
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Cooling Fan Operation
Cooling Fan Relay Operation
The ECM controls cooling fan relays through CAN communication line.
EVAPORATIVE EMISSION SYSTEM
JMBIA0179GB
Cooling fan speed
Cooling fan relay
123
Stop (OFF) OFF OFF OFF
Low (LOW) ON OFF OFF
Middle (MID) OFF ON OFF
High (HI) OFF ON ON
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM