2014 NISSAN TEANA timing

EC-68
< SYSTEM DESCRIPTION >[QR25DE]
DIAGNOSIS SYSTEM (ECM)
Only one set of freeze frame data (either 1st trip freez
e frame data or freeze frame data) can be stored in the
ECM. 1st trip freeze frame data is stored in the ECM me mory along with the 1st trip DTC. There is no priority
for 1st trip freeze frame data and it is updated each time a different 1st trip DTC is detected. However, once
freeze frame data (2nd trip detection/MIL on) is stored in the ECM memory, 1st trip freeze frame data is no
longer stored. Remember, only one set of freeze frame data can be stored in the ECM. The ECM has the fol-
lowing priorities to update the data.
For example, the EGR malfunction (Priority: 2) was detected and the freeze frame data was saved in the 2nd
trip. After that when the misfire (Priority: 1) is detected in another trip, the freeze frame data will be updated
from the EGR malfunction to the misfire. The 1st trip freeze frame data is updated each time a different mal-
function is detected. There is no priority for 1st trip freeze frame data. However, once freeze frame data is
stored in the ECM memory, 1st trip freeze data is no longer stored (because only one freeze frame data or 1st
trip freeze frame data can be stored in the ECM). If fr eeze frame data is stored in the ECM memory and freeze
frame data with the same priority occurs later, t he first (original) freeze frame data remains unchanged in the
ECM memory.
Both 1st trip freeze frame data and freeze frame dat a (along with the DTCs) are cleared when the ECM mem-
ory is erased.
DIAGNOSIS DESCRIPTION : Counter SystemINFOID:0000000009462114
RELATIONSHIP BETWEEN MIL, 1ST TRIP DTC, DTC, AND DETECTABLE ITEMS
• When a malfunction is detected for the first time, the 1st trip DTC and the 1st trip freeze frame data are
stored in the ECM memory.
• When the same malfunction is detected in two consec utive trips, the DTC and the freeze frame data are
stored in the ECM memory, and the MIL will come on.
• The MIL will turn OFF after the vehicle is driven 3 time s (driving pattern B) with no malfunction. The drive is
counted only when the recorded driving pattern is met (as stored in the ECM). If another malfunction occurs
while counting, the counter will reset.
• The DTC and the freeze frame data will be stored until the vehicle is driven 40 times (driving pattern A) with-
out the same malfunction recurring (except for Misfire and Fuel Injection System). For Misfire and Fuel Injec-
tion System, the DTC and freez e frame data will be stored until the vehicle is driven 80 times (driving pattern
C) without the same malfunction recurring. The “TIM E” in “SELF-DIAGNOSTIC RESULTS” mode of CON-
SULT will count the number of times the vehicle is driven.
• The 1st trip DTC is not displayed when the self-diagnosis results in OK for the 2nd trip.
COUNTER SYSTEM CHART
For details about patterns B and C under “Fuel Inject ion System” and “Misfire”, see “EXPLANATION FOR
DRIVING PATTERNS FOR “MISFIRE ”, “FUEL INJECTION SYS-
TEM”.
For details about patterns A and B under Other, s ee “EXPLANATION FOR DRIVING PATTERNS FOR “MIS-
FIRE ”, “FUEL INJECTION SYSTEM”.
• *1: Clear timing is at the moment OK is detected.
• *2: Clear timing is when the same ma lfunction is detected in the 2nd trip.
Relationship Between MIL, DTC, 1st Trip DTC and Driving Patterns for “Misfire terioration>”, “Fuel Injection System”
Priority Items
1 Freeze frame data Misfire — DTC: P0300 – P0304
Fuel Injection System Function — DTC: P0171, P0172
2 Except the above items
3 1st trip freeze frame data
Items Fuel Injection System Misfire Other
MIL (turns OFF) 3 (pattern B) 3 (pattern B) 3 (pattern B)
DTC, Freeze Frame Data (no display) 80 (p attern C) 80 (pattern C) 40 (pattern A)
1st Trip DTC (clear) 1 (pattern C), *1 1 (pattern C), *1 1 (pattern B)
1st Trip Freeze Frame Data (clear) *1, *2 *1, *2 1 (pattern B)
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EC-72
< SYSTEM DESCRIPTION >[QR25DE]
DIAGNOSIS SYSTEM (ECM)
Calculated load value: (Calculated load value in the freeze frame data) x (1
±0.1) [%]
Engine coolant temperature condition:
• When the freeze frame data shows lower than 70 °C (158 °F), engine coolant temperature should be lower
than 70 °C (158 °F).
• When the freeze frame data shows higher than or equal to 70 °C (158 °F), engine coolant temperature should
be higher than or equal to 70 °C (158 °F).
NOTE:
• When the same malfunction is detected regardless of t he above vehicle conditions, reset the counter of driv-
ing pattern C.
• When the above conditions are satisfied without detecting t he same malfunction, reset the counter of driving
pattern C.
• The 1st trip DTC will be cleared when C counter is c ounted once without the same malfunction after DTC is
stored in ECM.
DRIVING PATTERN D
Driving pattern D means a trip satisfying the following conditions.
• The state of driving at 40 km/h (25 MPH) reaches 300 seconds or more in total.
• Idle speed lasts 30 seconds or more.
• A lapse of 600 seconds or more after engine start.
NOTE:
• When the same malfunction is detected regardless of driv ing conditions, reset the counter of driving pattern
D.
• When the above conditions are satisfied without detecting t he same malfunction, reset the counter of driving
pattern D.
DIAGNOSIS DESCRIPTION : System Readiness Test (SRT) CodeINFOID:0000000009462116
System Readiness Test (SRT) code is spec ified in Service $01 of SAE J1979/ISO 15031-5.
As part of an enhanced emissions test for Inspection & Ma intenance (I/M), certain states require the status of
SRT be used to indicate whether the ECM has completed self-diagnosis of major emission systems and com-
ponents. Completion must be verified in order for the emissions inspection to proceed.
If a vehicle is rejected for a State emissions inspec tion due to one or more SRT items indicating “INCMP”, use
the information in this Service Manual to set the SRT to “CMPLT”.
In most cases the ECM will automatically complete its self-diagnosis cycle during normal usage, and the SRT
status will indicate “CMPLT” for each application system . Once set as “CMPLT”, the SRT status remains
“CMPLT” until the self-diagnosis memory is erased.
Occasionally, certain portions of the self-diagnostic test may not be completed as a result of the customer's
normal driving pattern; the SRT will indicate “INCMP” for these items.
NOTE:
The SRT will also indicate “INCMP” if the self-diagnosis memory is erased for any reason or if the ECM mem-
ory power supply is interrupted for several hours.
If, during the state emissions inspection, the SRT indica tes “CMPLT” for all test items, the inspector will con-
tinue with the emissions test. However, if the SRT indi cates “INCMP” for one or more of the SRT items the
vehicle is returned to the customer untested.
NOTE:
If permanent DTC is stored or MIL illuminates during t he state emissions inspection, the vehicle is also
returned to the customer untested even though the SRT indi cates “CMPLT” for all test items. therefore, it is
important to check SRT (“CMPLT”), DTC (No DTCs) and permanent DTC (No permanent DTC) before the
inspection.
SRT SET TIMING
SRT is set as “CMPLT” after self-diagnosis has been performed one or more times. Completion of SRT is
done regardless of whether the result is OK or NG. T he set timing is different between OK and NG results and
is shown in the table below.
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EC-74
< SYSTEM DESCRIPTION >[QR25DE]
DIAGNOSIS SYSTEM (ECM)
PERMANENT DTC SET TIMING
The setting timing of permanent DTC is stored in EC
M with the lighting of MIL when a DTC is confirmed.
DIAGNOSIS DESCRIPTION : Malfunction Indicator Lamp (MIL)INFOID:0000000009462118
When emission-related ECU detects a malfunction in the emission
control systems components and/or the powertrain control compo-
nents (which affect vehicle emissions), it turns on/blinks MIL to
inform the driver that a malfunction has been detected.
1. The MIL illuminates when ignition switch is turned ON (engine is not running).
NOTE:
Check the MIL circuit if MIL does not illuminate. Refer to EC-
517, "Diagnosis Procedure".
2. When the engine is started, the MIL should go off.
NOTE:
If MIL continues to illuminate/blink, perform self-diagnoses and
inspect/repair accordingly because an emission-rela ted ECU has detected a malfunction in the emission
control systems components and/or the powertrain cont rol components (which affect vehicle emissions).
On Board Diagnosis FunctionINFOID:0000000009462119
ON BOARD DIAGNOSIS ITEM
The on board diagnostic system has the following functions.
BULB CHECK MODE
Description
This function allows damage inspection in the MIL bulb (blown, open circuit, etc.).
Operation Procedure
1. Turn ignition switch ON.
2. The MIL on the instrument panel should stay ON. If it remains OFF, check MIL circuit. Refer to EC-517, "Diagnosis Procedure"
.
SRT STATUS MODE
Description
This function allows to read if ECM has completed t he self-diagnoses of major emission control systems and
components. For SRT, refer to EC-72, "DIAGNOSIS DESCRIPTION : System Readiness Test (SRT) Code"
.
Operation Procedure
1. Turn ignition switch ON and wait 20 seconds.
2. SRT status is indicated as shown blow. • ECM continues to illuminate MIL if all SRT codes are set.
JSBIA1315ZZ
Diagnostic test mode Function
Bulb check MIL can be checked.
SRT status ECM can read if SRT codes are set.
Malfunction warning If ECM detects a malfunction, it illuminates or blinks MIL to inform the driver that a malfunction has been detected.
Self-diagnostic results DTCs or 1st trip DTCs stored in ECM can be read.
Accelerator pedal released po-
sition learning ECM can learn the accelerator pedal released position. Refer to
EC-177, "Work Procedure"
.
Throttle valve closed position
learning ECM can learn the throttle valve closed position. Refer to
EC-178, "Work Procedure"
.
Idle air volume learning ECM can learn the idle air volume. Refer to EC-179, "Work Procedure"
.
Mixture ratio self -learning value
clear Mixture ratio self-learning value can be erased. Refer to
EC-181, "Work Procedure"
.
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EC-80
< SYSTEM DESCRIPTION >[QR25DE]
DIAGNOSIS SYSTEM (ECM)
TP SEN 1-B1
V××
• The throttle position sensor signal volt-age is displayed. • TP SEN 2-B1 signal is convert-
ed by ECM internally. Thus, it
differs from ECM terminal volt-
age signal.
TP SEN 2-B1
××
FUEL T/TMP SE °C or °F • The fuel temperature (determined by the
signal voltage of the fuel tank tempera-
ture sensor) is displayed.
EVAP SYS PRES V • The signal voltage of EVAP control sys-
tem pressure sensor is displayed.
FUEL LEVEL SE V ו The signal voltage of the fuel level sensor
is displayed.
START SIGNAL On/Off • Indicates start signal status [ON/OFF]
computed by the ECM according to the
signals of engine speed and battery volt-
age. • After starting the engine, [OFF]
is displayed regardless of the
starter signal.
CLSD THL POS On/Off ×ו Indicates idle position [ON/OFF] comput-
ed by ECM according to the accelerator
pedal position sensor signal.
AIR COND SIG On/Off ×ו Indicates [ON/OFF] condition of the air
conditioner switch as determined by the
air conditioner signal.
PW/ST SIGNAL On/Off ×ו [ON/OFF] condition of the power steering
system (determined by the signal sent
from EPS control unit) is indicated.
LOAD SIGNAL On/Off ×ו Indicates [ON/OFF] condition from the
electrical load signal.
- On: Rear window defogger switch is ON and/or lighting switch is in 2nd position.
- Off: Both rear window defogger switch
and lighting switch are OFF.
IGNITION SW On/Off ×ו Indicates [ON/OFF] condition from igni-
tion switch signal.
HEATER FAN SW On/Off ו Indicates [ON/OFF] condition from the
heater fan switch signal.
BRAKE SW On/Off • Indicates [ON/OFF] condition from the
stop lamp switch signal.
INJ PULSE-B1 msec • Indicates the actual fuel injection pulse
width compensated by ECM according to
the input signals. • When the engine is stopped, a
certain computed value is indi-
cated.
IGN TIMING BTDC ו Indicates the ignition timing computed by
ECM according to the input signals. • When the engine is stopped, a
certain value is indicated.
CAL/LD VALUE % • “Calculated load value” indicates the val-
ue of the current air flow divided by peak
air flow.
MASS AIRFLOW g/s • Indicates the mass air flow computed by
ECM according to the signal voltage of
the mass air flow sensor.
Monitored item Unit
Monitor Item
Selection
Description Remarks
ECU
IN-
PUT
SIG-
NALS MAIN
SIG-
NAL S
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DIAGNOSIS SYSTEM (ECM)EC-83
< SYSTEM DESCRIPTION > [QR25DE]
C
D E
F
G H
I
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K L
M A
EC
NP
O
LO SPEED CUT Non/Cut
• Indicates the vehicle cruise condition.
- Non: Vehicle speed is maintained at the ASCD set speed.
- Cut: Vehicle speed decreased to exces- sively low, and ASCD operation is cut off.
AT OD MONITOR On/Off • Indicates [ON/OFF] condition of CVT O/
D according to the input signal from the
TCM.
AT OD CANCEL On/Off • Indicates [ON/OFF] condition of CVT O/
D cancel request signal.
CRUISE LAMP On/Off • Indicates [ON/OFF]
condition of CRUISE
lamp determined by the ECM according
to the input signals.
SET LAMP On/Off • Indicates [ON/OFF] condition of SET
lamp determined by the ECM according
to the input signals.
ALT DUTY % • Indicates the duty ratio of the power gen-
eration command value. The ratio is calu-
culated by ECM based on the battery
current sensor signal.
BAT CUR SEN mV • The signal voltage of battery current sen-
sor is displayed.
A/F ADJ-B1 — • Indicates the correction of factor stored in
ECM. The factor is calculated from the
difference between the target air-fuel ra-
tio stored in ECM and the air-fuel ratio
calculated from A/F sensor 1 signal.
TUMBLE POS SEN V • The intake manifold runner control valve
position sensor signal voltage is dis-
played.
P/N POSI SW On/Off ×ו Indicates [ON/OFF] condition from the
park/neutral position (PNP) signal.
INT/A TEMP SE °C or °F ×× • The intake air temperature (determined
by the signal voltage of the intake air tem-
perature senso r) is indicated.
AC PRESS SEN V • The signal voltage from the refrigerant
pressure sensor is displayed.
VTC DTY EX B1 % • The control value of the exhaust valve
timing control solenoid valve (determined
by ECM according to the input signals) is
indicated.
• The advance angle becomes larger as the value increases.
EVAP LEAK DIAG YET/CMPLT • Indicates the condition of EVAP leak di-
agnosis.
YET: EVAP leak diagnosis has not been
performed yet.
CMPLT: EVAP leak diagnosis has been
performed successfully.
Monitored item Unit
Monitor Item
Selection
Description Remarks
ECU
IN-
PUT
SIG-
NALS MAIN
SIG-
NAL S
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EC-86
< SYSTEM DESCRIPTION >[QR25DE]
DIAGNOSIS SYSTEM (ECM)
*: Leaving cooling fan OFF with CONSULT while engine is running may cause the engine to overheat.
DTC WORK SUPPORT MODE
DTC WORK SUPPORT Mode
ALTERNATOR
DUTY • Engine: Idle
• Change duty ratio using CON-
SULT. Battery voltage changes.
• Harness and connectors
•IPDM E/R
•Alternator
FUEL PUMP RELAY • Ignition switch: ON (Engine
stopped)
• Turn the fuel pump relay “ON”
and “OFF” using CONSULT and
listen to operating sound. Fuel pump relay makes the operat-
ing sound. • Harness and connectors
• Fuel pump relay
VIAS S/V-1 • Ignition switch: ON
• Turn intake manifold tuning valve
“ON” and “OFF” using CONSULT
and listen to operating sound. Intake manifold tuning valve motor
makes an operating sound. • Harness and connectors
• Intake manifold tuning valve mo- tor
TUMBLE CONTROL
VA LV E • Ignition switch: ON
• Turn intake manifold runner con-
trol valve “ON” and “OFF” using
CONSULT and listen to operating
sound. Intake Manifold Runner control
valve motor makes an operating
sound. • Harness and connectors
• Intake Manifold Runner control valve motor
IGNITION TIMING • Engine: Return to the original
trouble condition
• Timing light: Set
• Retard the ignition timing using
CONSULT. If trouble symptom disappears, see
CHECK ITEM. • Perform Idle Air Volume Learn-
ing.
POWER BALANCE • Engine: After warming up, idle the
engine.
• A/C switch OFF
• Selector lever: P or N
• Cut off each fuel injector signal one at a time using CONSULT. Engine runs rough or stops. • Harness and connectors
• Compression
• Fuel injector
• Power transistor
• Spark plug
• Ignition coil
VENT CONTROL/V • Ignition switch: ON (Engine
stopped)
• Turn solenoid valve “ON” and “OFF” using CONSULT and listen
to operating sound. Solenoid valve makes an operating
sound. • Harness and connectors
• Solenoid valve
INT V/T ASSIGN AN-
GLE • Engine: Return to the original
trouble condition
• Change intake valve timing using
CONSULT. If trouble symptom disappears, see
CHECK ITEM. • Harness and connectors
• Intake valve timing control sole- noid valve
EXH V/T ASSIGN
ANGLE • Engine: Return to the original
trouble condition
• Change exhaust valve timing us- ing CONSULT. If trouble symptom disappears, see
CHECK ITEM. • Harness and connectors
• Exhaust valve timing control so-
lenoid valve
COOLING FAN* • Ignition switch: ON
• Turn the cooling fan “LOW”, “HI” and “OFF” using CONSULT. Cooling fan moves and stops. • Harness and connectors
• IPDM E/R (Cooling fan relay)
• Cooling fan motor
Test item Condition Judgment Check item (Remedy)
Test mode Test item Corresponding DTC No. Reference page
EVAPORATIVE SYSTEM PURG FLOW P0441 P0441
EC-337
PURG VOL CN/V P1444 P0443EC-342
A/F SEN1 A/F SEN1(B1) P1276 P0130 EC-258
HO2S2HO2S2(B1) P1146 P0138
EC-274HO2S2(B1) P1147 P0137EC-268
HO2S2(B1) P0139 P0139EC-282
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EC-88
< ECU DIAGNOSIS INFORMATION >[QR25DE]
ECM
ECU DIAGNOSIS INFORMATION
ECM
Reference ValueINFOID:0000000009462121
VALUES ON THE DIAGNOSIS TOOL
NOTE:
• The following table includes information (items) inapplicable to this vehicle. For information (items) applica- ble to this vehicle, refer to CONSULT display items.
• Numerical values in the following table are reference values.
• These values are input/output values that ECM receiv es/transmits and may differ from actual operations.
Example: The ignition timing shown by the timing light may differ from the ignition timing displayed on the
data monitor.
This occurs because the timing light shows a value calculated by ECM according to signals received from
the camshaft position sensor and other sensors related to ignition timing.
• For outlines of following items, refer to EC-77, "CONSULT Function"
.
Monitor Item Condition Values/Status
ENG SPEED • Run engine and compare CONSULT value with the tachometer indication.Almost the same speed as
the tachometer indication.
MAS A/F SE-B1 See EC-196, "Diagnosis Procedure"
.
B/FUEL SCHDL See EC-196, "Diagnosis Procedure"
.
A/F ALPHA-B1 See EC-196, "Diagnosis Procedure"
.
COOLAN TEMP/S • Engine: After warming up More than 70 °C (158 °F)
A/F SEN1 (B1) • Engine: After warming up Maintaining engine speed at 2,000 rpm Fluctuates around 2.2 V
HO2S2 (B1) • Revving engine from idle up to 3,000 rpm quickly after the following conditions
are met.
- Engine: After warming up
- After keeping engine speed between 3,500 and 4,000 rpm for 1 minute and at idle for 1 minute under no load 0 - 0.3 V
←→ Approx. 0.6 -
1.0 V
HO2S2 MNTR(B1) • Revving engine from idle up to 3,000 rpm quickly after the following conditions
are met.
- Engine: After warming up
- After keeping engine speed between 3,500 and 4,000 rpm for 1 minute and at
idle for 1 minute under no load LEAN
←→ RICH
VHCL SPEED SE • Turn drive wheels and compare CONSULT value with the speedometer indi-
cation. Almost the same speed as
speedometer indication
BATTERY VOLT • Ignition switch: ON (Engine stopped) 11 - 14 V
ACCEL SEN 1 • Ignition switch: ON
(Engine stopped) Accelerator pedal: Fully released 0.5 - 1.0 V
Accelerator pedal: Fully depressed 4.2 - 4.8 V
ACCEL SEN 2*
1• Ignition switch: ON (Engine stopped) Accelerator pedal: Fully released 0.5 - 1.0 V
Accelerator pedal: Fully depressed 4.2 - 4.8 V
TP SEN 1-B1 • Ignition switch: ON
(Engine stopped)
• Selector lever: D Accelerator pedal: Fully re
leased More than 0.36 V
Accelerator pedal: Fully depressed Less than 4.75 V
TP SEN 2-B1*
1• Ignition switch: ON (Engine stopped)
• Selector lever: D Accelerator pedal: Fully released Less than 4.75 V
Accelerator pedal: Fully depressed More than 0.36 V
FUEL T/TMP SE • Ignition switch: ON Indicates fuel tank tempera-
ture
EVAP SYS PRES • Ignition switch: ON Approx. 1.8 - 4.8 V
FUEL LEVEL SE • Ignition switch: ON Depending on fuel level of
fuel tank
START SIGNAL • Ignition switch: ON → START → ON Off → On → Off
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ECM
EC-89
< ECU DIAGNOSIS INFORMATION > [QR25DE]
C
D E
F
G H
I
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EC
NP
O
CLSD THL POS
• Ignition switch: ON
(Engine stopped) Accelerator pedal: Fully released On
Accelerator pedal: Slightly depressed Off
AIR COND SIG • Engine: After warming up, idle the
engine Air conditioner switch: OFF Off
Air conditioner switch: ON
(Compressor operates.) On
PW/ST SIGNAL • Engine: After warming up, idle the
engine Steering wheel: Not being turned Off
Steering wheel: Being turned On
LOAD SIGNAL • Ignition switch: ON Rear window defogger switch: ON
and/or Lighting switch: 2nd position On
Rear window defogger switch and lighting
switch: OFF Off
IGNITION SW • Ignition switch: ON → OFF → ON On → Off → On
HEATER FAN SW • Engine: After warming up, idle the
engine Heater fan switch: ON On
Heater fan switch: OFF Off
BRAKE SW • Ignition switch: ON Brake pedal: Fully released Off
Brake pedal: Slightly depressed On
INJ PULSE-B1 • Engine: After warming up
• Selector lever: P or N
• Air conditioner switch: OFF
•No load Idle 2.0 - 3.0 msec
2,000 rpm 1.9 - 2.9 msec
IGN TIMING • Engine: After warming up
• Selector lever: P or N
• Air conditioner switch: OFF
•No load Idle 5
° - 15 ° BTDC
2,000 rpm 25 ° - 45 ° BTDC
CAL/LD VALUE • Engine: After warming up
• Selector lever: P or N
• Air conditioner switch: OFF
•No load Idle 10% - 35%
2,500 rpm 10% - 35%
MASS AIRFLOW • Engine: After warming up
• Selector lever: P or N
• Air conditioner switch: OFF
•No load Idle 1.0 - 4.0 g/s
2,500 rpm 4.0 - 10.0 g/s
PURG VOL C/V • Engine: After warming up
• Selector lever: P or N
• Air conditioner switch: OFF
•No load Idle
(Accelerator pedal: Not depressed even
slightly, after engine starting.) 0%
2,000 rpm 20% - 90%
INT/V TIM(B1) • Engine: After warming up
• Selector lever: P or N
• Air conditioner switch: OFF
•No load Idle
−5 ° - 5 °CA
4,000 rpm Approx. 0 ° - 30 °CA
EXH/V TIM B1 • Engine: After warming up
• Selector lever: P or N
• Air conditioner switch: OFF
•No load Idle
−5 ° - 5 °CA
2,000 rpm Approx. 0 ° - 40 °CA
INT/V SOL (B1) • Engine: Idle speed
• Selector lever: P or N
• Air conditioner switch: OFF
•No load After warming up 0%
Cold condition [Engine coolant tempera-
ture below 60 °C (140 °F)] Approx. 50% - 100%
SWRL CONT S/V • Ignition switch: ON
• Engine coolant temperature: Be- tween -12 °C (10 °F) and 59 °C
(138 °F) Accelerator pedal: Fully released On
Accelerator pedal: Fully depressed Off
Monitor Item Condition Values/Status
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