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REAR DOORDLK-195
< REMOVAL AND INSTALLATION >
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4. Remove rear door lower hinge bolts (A) and lower hinge.
INSTALLATION
Installation is in the reverse order of removal.
Tighten rear door hinge nuts and bolts to specified torque.
CAUTION:
• Apply anticorrosive agent onto the hinge mating surface.
• After installation, check rear doo r open/close, lock/unlock operation.
• After installation, perform the rear door adjustment procedure. Refer to DLK-191, "DOOR ASSEMBLY
: Adjustment".
DOOR CHECK LINK
DOOR CHECK LINK : Removal and InstallationINFOID:0000000009461942
REMOVAL
1. Fully close the rear door glass.
2. Remove rear door speaker (if equipped). Refer to AV-204, "Removal and Installation"
(DISPLAY AUDIO
WITH BOSE), or AV-424, "Removal and Installation"
(NAVIGATION WITH BOSE).
3. Remove door check link bolt from body.
4. Remove door check link bolts on door panel.
5. Remove door check link (1) through the hole in door panel (2).
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• After installation, check rear doo r open/close, lock/unlock operation.
ALKIA2712ZZ
Rear door hinge nuts
and bolts 20.6 N·m (2.1 kg-m, 15 ft-lb)
JMKIA8073ZZ
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EC-1
ENGINE
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SECTION EC
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CONTENTS
ENGINE CONTROL SYSTEM
QR25DE
PRECAUTION ................ ..............................
15
PRECAUTIONS .............................................. ....15
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ....
15
Precaution for Procedure without Cowl Top Cover ....15
On Board Diagnostic (OBD) System of Engine
and CVT .............................................................. ....
15
General Precautions ...............................................16
PREPARATION ...........................................19
PREPARATION .............................................. ....19
Special Service Tools .......................................... ....19
Commercial Service Tools ......................................19
SYSTEM DESCRIPTION .............................21
COMPONENT PARTS ................................... ....21
Component Parts Location ................................ ....21
ECM ........................................................................25
Accelerator Pedal Position Sensor ...................... ....25
Electric Throttle Control Actuator ........................ ....25
Ignition Coil With Power Transistor .........................26
Fuel Injector ........................................................ ....26
Fuel Level Sensor Unit and Fuel Pump .............. ....26
Fuel Tank Temperature Sensor .......................... ....27
Mass Air Flow Sensor (With Intake Air Tempera-
ture Sensor) ........................................................ ....
27
Manifold Absolute Pressure Sensor ........................28
Engine Coolant Temperature Sensor .................. ....28
Crankshaft Position Sensor (POS) ..........................29
Camshaft Position Sens or (PHASE) .......................29
Intake Valve Timing Cont rol Solenoid Valve ...........30
Intake Valve Timing Intermediate Lock Control
Solenoid Valve .................................................... ....
30
Exhaust Valve Timing Control Position Sensor .......30
Exhaust Valve Timing Control Solenoid Valve ........31
Intake Manifold Runner Control Valve ................. ....31
Intake Manifold Tuning Valve ..................................31
Air Fuel Ratio (A/F) Sensor 1 ..................................32
Heated Oxygen Sensor 2 ........................................32
Knock Sensor ..........................................................33
Engine Oil Pressure Sensor ....................................33
Engine Oil Temperature Sensor .......................... ....33
Cooling Fan .............................................................34
EVAP Canister .........................................................34
EVAP Canister Purge Volu me Control Solenoid
Valve .................................................................... ....
34
EVAP Canister Vent Control Valve ..........................35
EVAP Control System Pres sure Sensor ..................35
Battery Current Sensor (With Battery Tempera-
ture Sensor) ......................................................... ....
35
Malfunction Indicator lamp (MIL) .............................36
Oil Pressure Warning Lamp ....................................36
Refrigerant Pressure Sensor ............................... ....36
Stop Lamp Switch & Brake Pedal Position Switch ....36
ASCD Steering Switch .............................................37
Information Display ..................................................37
STRUCTURE AND OPERATION .....................38
Positive Crankcase Ventilation ................................38
On Board Refueling Vapor Recovery (ORVR) ........39
SYSTEM ............................................................40
ENGINE CONTROL SYSTEM ........................ ...........40
ENGINE CONTROL SYSTEM : System Descrip-
tion ....................................................................... ....
40
ENGINE CONTROL SYSTEM : Fail Safe ..............41
MULTIPORT FUEL INJECTION SYSTEM ................43
MULTIPORT FUEL INJECTION SYSTEM : Sys-
tem Description (with auto matic air conditioner) ......
43
MULTIPORT FUEL INJECTION SYSTEM : Sys-
tem Description (with manual air conditioner) .........
46
ELECTRIC IGNITION SYSTEM .................................48
ELECTRIC IGNITION SYSTEM : System De-
scription ............................................................... ....
48
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EC-7
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P2101 ELECTRIC THROTTLE CONTROL
FUNCTION ..................................................... ..
475
DTC Logic ........................................................... ..475
Diagnosis Procedure .............................................475
Component Inspection ..........................................477
P2118 THROTTLE CONTROL MOTOR ..........478
DTC Logic ........................................................... ..478
Diagnosis Procedure .............................................478
Component Inspection ..........................................479
P2119 ELECTRIC THROTTLE CONTROL
ACTUATOR .................................................... ..
480
DTC Logic ........................................................... ..480
Diagnosis Procedure .............................................480
P2122, P2123 APP SENSOR ...........................482
DTC Logic ........................................................... ..482
Diagnosis Procedure .............................................482
Component Inspection ..........................................484
P2127, P2128 APP SENSOR ...........................485
DTC Logic ........................................................... ..485
Diagnosis Procedure .............................................485
Component Inspection ..........................................486
P2135 TP SENSOR ..........................................488
DTC Logic ........................................................... ..488
Diagnosis Procedure .............................................488
Component Inspection ..........................................490
P2138 APP SENSOR .......................................491
DTC Logic ........................................................... ..491
Diagnosis Procedure .............................................491
Component Inspection ..........................................493
P2610 ECM INTERNAL TIMER .......................494
Description .......................................................... ..494
DTC Logic .............................................................494
Diagnosis Procedure .............................................495
BRAKE PEDAL POSITION SWITCH ...............496
Component Function Check ................................ ..496
Diagnosis Procedure .............................................496
Component Inspection (Brake Pedal Position
Switch) ................................................................ ..
497
COOLING FAN .................................................499
Component Function Check ................................ ..499
Diagnosis Procedure .............................................499
Component Inspection (Cooling Fan Motor) .........501
Component Inspection (C ooling Fan Relay) .........502
ELECTRICAL LOAD SIGNAL ....................... ..503
Description .......................................................... ..503
Component Function Check ..................................503
Diagnosis Procedure .............................................503
FUEL INJECTOR .............................................505
Component Function Check ................................ ..505
Diagnosis Procedure .............................................505
Component Inspection ......................................... ..506
FUEL PUMP ....................................................508
Description .............................................................508
Component Function Check ..................................508
Diagnosis Procedure .............................................508
Component Inspection ...........................................510
IGNITION SIGNAL ..........................................511
Component Function Check ..................................511
Diagnosis Procedure .............................................511
Component Inspection (Ignition Coil with Power
Transistor) ........................................................... ..
514
Component Inspection (Condenser) ......................515
INFORMATION DISPLAY (ASCD) .................516
Component Function Check ..................................516
Diagnosis Procedure .............................................516
MALFUNCTION INDICATOR LAMP ..............517
Component Function Check ..................................517
Diagnosis Procedure .............................................517
ON BOARD REFUELING VAPOR RECOV-
ERY (ORVR) ....................................................
518
Component Function Check ................................ ..518
Diagnosis Procedure .............................................518
Component Inspection ...........................................520
REFRIGERANT PRESSURE SENSOR ..........523
Component Function Check ..................................523
Diagnosis Procedure .............................................523
SENSOR POWER SUPPLY 2 CIRCUIT .........525
Description .............................................................525
Diagnosis Procedure .............................................525
SYMPTOM DIAGNOSIS ............................527
ENGINE CONTRO L SYSTEM ........................527
Symptom Table ................................................... ..527
INFORMATION DISPLAY IS MALFUNCTION-
ING ..................................................................
532
Diagnosis Procedure ........................................... ..532
NORMAL OPERATING CONDITION .............533
Description .............................................................533
PERIODIC MAINTENANCE ......................534
IDLE SPEED .... ...............................................534
Inspection ............................................................ ..534
IGNITION TIMING ...........................................535
Inspection ..............................................................535
EVAPORATIVE EMISSION SYSTEM .............536
Inspection ..............................................................536
EVAP LEAK CHECK ......................................537
Inspection ..............................................................537
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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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PRECAUTIONSEC-17
< PRECAUTION > [QR25DE]
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After performing each TROUBL E DIAGNOSIS, perform DTC
CONFIRMATION PROCEDURE or Component Function
Check. The DTC should NISSAN TEANA 2014 Service Manual
PRECAUTIONSEC-17
< PRECAUTION > [QR25DE]
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•
After performing each TROUBL E DIAGNOSIS, perform DTC
CONFIRMATION PROCEDURE or Component Function
Check. The DTC should](/img/5/57390/w960_57390-1016.png)
PRECAUTIONSEC-17
< PRECAUTION > [QR25DE]
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After performing each TROUBL E DIAGNOSIS, perform DTC
CONFIRMATION PROCEDURE or Component Function
Check. The DTC should not be displayed in the DTC Confir-
mation Procedure if the repair is completed. The Component
Function Check should be a good result if the repair is com-
pleted.
• When measuring ECM signals with a circuit tester, never allow
the two tester probes to contact.
Accidental contact of probes will cause a short circuit and
damage the ECM power transistor.
• Do not operate fuel pump when there is no fuel in lines.
• Tighten fuel hose clamps to the specified torque.
• Do not depress accelerator pedal when starting.
• Immediately after starting, do not rev up engine unnecessar-
ily.
• Do not rev up engine ju st prior to shutdown.
JSBIA1315ZZ
SEF348N
SEF709Y
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EC-24
< SYSTEM DESCRIPTION >[QR25DE]
COMPONENT PARTS
A. Instrument panel area B. Periphery of pedals C. Inside fuel tank area
D. Behind fuel tank
: Vehicle front
No. Component Function Combination m NISSAN TEANA 2014 Service Manual
EC-24
< SYSTEM DESCRIPTION >[QR25DE]
COMPONENT PARTS
A. Instrument panel area B. Periphery of pedals C. Inside fuel tank area
D. Behind fuel tank
: Vehicle front
No. Component Function Combination m](/img/5/57390/w960_57390-1023.png)
EC-24
< SYSTEM DESCRIPTION >[QR25DE]
COMPONENT PARTS
A. Instrument panel area B. Periphery of pedals C. Inside fuel tank area
D. Behind fuel tank
: Vehicle front
No. Component Function Combination meter Malfunction indicator lamp (MIL)
EC-36, "Malfunction Indicator lamp (MIL)"
Information displayEC-37, "Information Display"
ASCD steering switch EC-37, "ASCD Steering Switch"
Stop lamp switch
EC-36, "Stop Lamp Switch & Brake Pedal Position Switch"
Brake pedal position switch
Accelerator pedal position sensor EC-25, "Accelerator Pedal Position Sensor"
Fuel level sensor unit and fuel pumpEC-26, "Fuel Level Sensor Unit and Fuel Pump"
Fuel tank temperature sensorEC-27, "Fuel Tank Temperature Sensor"
EVAP control system pressure sensorEC-35, "EVAP Control System Pressure Sensor"
EVAP canister vent control valve EC-35, "EVAP Canister Vent Control Valve"
EVAP canisterEC-34, "EVAP Canister"
ALBIA0806ZZ
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COMPONENT PARTSEC-37
< SYSTEM DESCRIPTION > [QR25DE]
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ASCD Steering SwitchINFOID:0000000009462087
ASCD steering switch has variant values of electrical
resistance for NISSAN TEANA 2014 Service Manual
COMPONENT PARTSEC-37
< SYSTEM DESCRIPTION > [QR25DE]
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ASCD Steering SwitchINFOID:0000000009462087
ASCD steering switch has variant values of electrical
resistance for](/img/5/57390/w960_57390-1036.png)
COMPONENT PARTSEC-37
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ASCD Steering SwitchINFOID:0000000009462087
ASCD steering switch has variant values of electrical
resistance for each button. ECM reads voltage variation
of switch, and determines which button is operated.
Information DisplayINFOID:0000000009462088
The operation mode of the ASCD is indicated on the information display in the combination meter.
ECM transmits the status signal to the combination meter via CAN communication according to ASCD opera-
tion.
Brake pedal Brake pedal position switch Stop lamp switch
Released ON OFF
Depressed OFF ON
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< SYSTEM DESCRIPTION >[QR25DE]
SYSTEM
FUEL FILLER CAP WARNING SYS TEM : System Description
INFOID:0000000009462101
SYSTEM DIAGRAM
SYSTEM DESCRIPTION
The fuel filler cap warning system alerts t NISSAN TEANA 2014 Service Manual
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< SYSTEM DESCRIPTION >[QR25DE]
SYSTEM
FUEL FILLER CAP WARNING SYS TEM : System Description
INFOID:0000000009462101
SYSTEM DIAGRAM
SYSTEM DESCRIPTION
The fuel filler cap warning system alerts t](/img/5/57390/w960_57390-1055.png)
EC-56
< SYSTEM DESCRIPTION >[QR25DE]
SYSTEM
FUEL FILLER CAP WARNING SYS TEM : System Description
INFOID:0000000009462101
SYSTEM DIAGRAM
SYSTEM DESCRIPTION
The fuel filler cap warning system alerts the driver to the prevention of the fuel filler being left uncapped and
malfunction occurrences after refueling, by turning ON the fuel filler cap warning display on the combination
meter.
ECM judges a refueled state, based on a fuel level signal transmitted from the combination meter.
When a very small leak is detected through the EVAP leak diagnosis performed after judging the refueled
state, ECM transmits a fuel filler cap warning display signal (request for display ON) to the combination meter
via CAN communication.
When receiving the signal, the combination meter turns ON the fuel filler cap warning display.
CAUTION:
Check fuel filler cap installation condition when the fuel filler cap warning display turns ON.
Reset Operation
The fuel filler cap warning lamp tunes OFF, according to any condition listed below:
• Reset operation is performed by operating the meter control switch on the combination meter. Refer to MWI-
18, "Description".
- When the reset operation is performed, the combination meter transmits a fuel filler cap warning reset signal
to ECM via CAN communication. ECM transmits a fuel filler cap warning display signal (request for display
OFF) to the combination meter via CAN communicati on. When receiving the signal, the combination meter
turns OFF the fuel filler cap warning display.
• EVAP leak diagnosis result is normal.
• Fuel refilled.
• DTC erased by using CONSULT.
NOTE:
MIL turns ON if a malfunction is detected in leak diagnosis results again at the trip after the fuel filler cap warn-
ing display turns ON/OFF.
AIR CONDITIONING CUT CONTROL
AIR CONDITIONING CUT CONTROL : System Description (with automatic air condi-
JSBIA0797GB
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EC-64
< SYSTEM DESCRIPTION >[QR25DE]
SYSTEM
The ASCD operation status is indicated by two indica
tors (CRUISE and SET on the information display) on the
combination meter. If any malfunction occurs i NISSAN TEANA 2014 Service Manual
EC-64
< SYSTEM DESCRIPTION >[QR25DE]
SYSTEM
The ASCD operation status is indicated by two indica
tors (CRUISE and SET on the information display) on the
combination meter. If any malfunction occurs i](/img/5/57390/w960_57390-1063.png)
EC-64
< SYSTEM DESCRIPTION >[QR25DE]
SYSTEM
The ASCD operation status is indicated by two indica
tors (CRUISE and SET on the information display) on the
combination meter. If any malfunction occurs in AS CD system, SET indicator blinks and ASCD control is deac-
tivated.
NOTE:
Always drive vehicle in safe manner according to traffic conditions and obey all traffic laws.
SET OPERATION
Press MAIN switch. (CRUISE is indicated on the information display.)
When vehicle speed reaches a desired speed between approximately 40 km/h (25 MPH) and 144 km/h (89
MPH), press SET/COAST switch. (Then SET is indicated on the information display.)
ACCELERATE OPERATION
If the RESUME/ACCELERATE switch is pressed during cruise control driving, increase the vehicle speed until
the switch is released or vehicle speed r eaches maximum speed controlled by the system.
And then ASCD will keep the new set speed.
CANCEL OPERATION
When any of following conditions exist, cruise operation will be canceled.
• CANCEL switch is pressed
• More than 2 switches at ASCD steering switch are pressed at the same time (Set speed will be cleared)
• Brake pedal is depressed
• Selector lever is changed to N, P, R position
• Vehicle speed decreased to 13 km/h (8 MPH) lower than the set speed
• TCS system is operated
When the ECM detects any of the following conditions , the ECM will cancel the cruise operation and inform
the driver by blinking indicators.
• Engine coolant temperature is slightly higher than t he normal operating temperature, CRUISE indicator may
blink slowly.
When the engine coolant temperature decreases to the normal operating temperature, CRUISE indicator will
stop blinking and the cruise operation will be able to wo rk by pressing SET/COAST switch or RESUME/
ACCELERATE switch.
• Malfunction for some self-diagnoses regarding AS CD control: SET indicator will blink quickly.
If MAIN switch is turned to OFF during ASCD is acti vated, all of ASCD operations will be canceled and vehicle
speed memory will be erased.
COAST OPERATION
When the SET/COAST switch is press ed during cruise control driving, decrease vehicle set speed until the
switch is released. And then ASCD will keep the new set speed.
RESUME OPERATION
When the RESUME/ACCELERATE switch is pressed after cancel operation other than pressing MAIN switch
is performed, vehicle speed will return to last set s peed. To resume vehicle set speed, vehicle condition must
meet following conditions.
• Brake pedal is released
• Selector lever is in other than P and N positions
• Vehicle speed is greater than 40 km/h (25 MPH) and less than 144 km/h (89 MPH)
CAN COMMUNICATION
CAN COMMUNICATION : System DescriptionINFOID:0000000009462108
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication s peed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CA N communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
Refer to LAN-32, "CAN COMMUNICA TION SYSTEM : CAN Communication Signal Chart"
, about CAN com-
munication for detail.
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DIAGNOSIS SYSTEM (ECM)EC-67
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DIAGNOSIS DESCRIPTION
DIAGNOSIS DESCRIPTION : 1s
t Trip Detection Logic and Two Tri NISSAN TEANA 2014 Service Manual
DIAGNOSIS SYSTEM (ECM)EC-67
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DIAGNOSIS SYSTEM (ECM)
DIAGNOSIS DESCRIPTION
DIAGNOSIS DESCRIPTION : 1s
t Trip Detection Logic and Two Tri](/img/5/57390/w960_57390-1066.png)
DIAGNOSIS SYSTEM (ECM)EC-67
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DIAGNOSIS SYSTEM (ECM)
DIAGNOSIS DESCRIPTION
DIAGNOSIS DESCRIPTION : 1s
t Trip Detection Logic and Two Trip Detection Logic
INFOID:0000000009462112
When a malfunction is detected for the first time, 1st tr ip DTC and 1st trip Freeze Frame data are stored in the
ECM memory. The MIL will not illuminate at this stage. <1st trip>
If the same malfunction is detected again during the next drive, the DTC and Freeze Frame data are stored in
the ECM memory, and the MIL illuminates. The MIL illu minates at the same time when the DTC is stored.
<2nd trip> The “trip” in the “Two Trip Detection Logic” means a driving mode in which self-diagnosis is per-
formed during vehicle operation. Specific on board diagnosti c items will cause the ECM to illuminate or blink
the MIL, and store DTC and Freeze Frame data, even in the 1st trip, as shown below.
×: Applicable —: Not applicable
DIAGNOSIS DESCRIPTION : DTC and Freeze Frame DataINFOID:0000000009462113
DTC AND 1ST TRIP DTC
The 1st trip DTC (whose number is the same as the DT C number) is displayed for the latest self-diagnostic
result obtained. If the ECM memory was cleared previously , and the 1st trip DTC did not recur, the 1st trip DTC
will not be displayed.
If a malfunction is detected during the 1st trip, the 1st trip DTC is saved in the ECM memory. The MIL will not
light up (two trip detection logic). If the same malfunc tion is not detected in the 2nd trip (meeting the required
driving pattern), the 1st trip DTC is cleared from the ECM memory. If the same malfunction is detected in the
2nd trip, both the 1st trip DTC and DTC are saved in t he ECM memory and the MIL lights up. In other words,
the DTC is stored in the ECM memory and the MIL light s up when the same malfunction occurs in two consec-
utive trips. If a 1st trip DTC is stored and a non-diagnostic operation is performed between the 1st and 2nd
trips, only the 1st trip DTC will continue to be stored. Fo r malfunctions that blink or light up the MIL during the
1st trip, the DTC and 1st trip DTC are stored in the ECM memory.
For malfunctions in which 1st trip DTCs are displayed, refer to EC-105, "DTC Index"
. These items are
required by legal regulations to c ontinuously monitor the system/component . In addition, the items monitored
non-continuously are also displayed on CONSULT.
1st trip DTC is specified in Service $07 of SAE J1979/ ISO 15031-5. 1st trip DTC detection occurs without illu-
minating the MIL and therefore does not warn the driver of a malfunction.
When a 1st trip DTC is detected, check, print out or write down and erase (1st trip) DTC and Freeze Frame
data as specified in Work Flow procedure Step 2, refer to EC-165, "Work Flow"
. Then perform DTC Confirma-
tion Procedure or Component Function Check to try to duplicate the malfunction. If the malfunction is dupli-
cated, the item requires repair.
FREEZE FRAME DATA AND 1ST TRIP FREEZE FRAME DATA
The ECM records the driving conditions such as fuel system status, calculated load value, engine coolant tem-
perature, short term fuel trim, long term fuel trim, engi ne speed, vehicle speed, absolute throttle position, base
fuel schedule and intake air temperature at the moment a malfunction is detected.
Data which are stored in the ECM memory, along with the 1st trip DTC, are called 1st trip freeze frame data.
The data, stored together with the DTC data, are called freeze frame data and displayed on CONSULT or
GST. The 1st trip freeze frame data c an only be displayed on the CONSULT screen.
Items MIL DTC 1st trip DTC
1st trip 2nd trip 1st trip
displaying 2nd trip
displaying 1st trip
displaying 2nd trip
display- ing
Blinking Illuminat-
ed Blinking Illuminat-
ed
Misfire (Possible three way catalyst
damage) — DTC: P0300 – P0304
is being detected ×
———— — ×—
Misfire (Possible three way catalyst
damage) — DTC: P0300 – P0304
is being detected ——
×—— ×——
One trip detection diagnoses (Re-
fer to EC-105, "DTC Index"
.) —
×—— ×———
Except above — — — ×— ×× —
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM