Condition NISSAN TEANA 2008 Service Manual

EC-362
< ECU DIAGNOSIS >[VQ25DE, VQ35DE]
ECM
5
(L)11 2
(B)Throttle control motor (Open) Output[Ignition switch: ON]
 Engine stopped
 Selector lever: D
 Accelerator pedal: Fully de-
pressed0 - 14 V
[Ignition switch: ON]
 Engine stopped
 Selector lever: D
 Accelerator pedal: Fully re-
leased0 - 14 V
6
(P)11 2
(B)Throttle control motor (Close) Output[Ignition switch: ON]
 Engine stopped
 Selector lever: D
 Accelerator pedal: Fully re-
leased0 - 14 V
8
(SB)11 2
(B)A/F sensor 1 heater (Bank 2) Output[Engine is running]
 Warm-up condition
 Idle speed
(More than 140 seconds after
starting engine)2.9 - 8.8 V
9
(L/B)
11 2
(B)Ignition signal No. 3
Output[Engine is running]
 Warm-up condition
 Idle speed
NOTE:
The pulse cycle changes de-
pending on rpm at idle0 - 0.2 V
10
(G/R)Ignition signal No. 2
11
(Y/R)Ignition signal No. 1
18
(GR/R)Ignition signal No. 6
[Engine is running]
 Warm-up condition
 Engine speed: 2,000 rpm0.1 - 0.4 V
19
(P)Ignition signal No. 5
21
(W)Ignition signal No. 4
12
(B)— ECM ground — — — Terminal No. Description
ConditionVa l u e
(Approx.)
+ -– Signal nameInput/
OutputJMBIA0031GB
JMBIA0032GB
JMBIA1125GB
JMBIA0030GB
JMBIA0035GB
JMBIA0036GB

ECM
EC-363
< ECU DIAGNOSIS >[VQ25DE, VQ35DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
13
(P/B)11 2
(B)Heated oxygen sensor 2 heat-
er (Bank 1)Output[Engine is running]
 Engine speed: Below 3,600
rpm after the following condi-
tions are met
- Engine: after warming up
- Keeping the engine speed be-
tween 3,500 and 4,000 rpm
for 1 minute and at idle for 1
minute under no load10 V
[Ignition switch: ON]
 Engine stopped
[Engine is running]
 Engine speed: Above 3,600
rpmBATTERY VOLTAGE
(11 - 14 V)
14
(GR)11 2
(B)Fuel pump relay Output[Ignition switch: ON]
 For 1 second after turning ig-
nition switch ON
[Engine is running]0 - 1.5 V
[Ignition switch: ON]
 More than 1 second after turn-
ing ignition switch ONBATTERY VOLTAGE
(11 - 14 V)
15
(O)11 2
(B)Throttle control motor relay Output[Ignition switch: ON → OFF]0 - 1.0 V → BATTERY VOLTAGE
(11 - 14 V) → 0 V
[Ignition switch: ON] 0 - 1.0 V
16
(B/Y)— ECM ground — — —
17
(R)11 2
(B)Heated oxygen sensor 2 heat-
er (Bank 2)Output[Engine is running]
 Engine speed: Below 3,600
rpm after the following condi-
tions are met
- Engine: after warming up
- Keeping the engine speed be-
tween 3,500 and 4,000 rpm
for 1 minute and at idle for 1
minute under no load10 V
[Ignition switch: ON]
 Engine stopped
[Engine is running]
 Engine speed: Above 3,600
rpmBATTERY VOLTAGE
(11 - 14 V)
24
(W/B)11 2
(B)ECM relay
(Self shut-off)Output[Engine is running]
[Ignition switch: OFF]
 A few seconds after turning
ignition switch OFF0 - 1.5 V
[Ignition switch: OFF]
 More than a few seconds after
turning ignition switch OFFBATTERY VOLTAGE
(11 - 14 V) Terminal No. Description
ConditionVa l u e
(Approx.)
+-– Signal nameInput/
Output
JMBIA0902GB
JMBIA0902GB

EC-364
< ECU DIAGNOSIS >[VQ25DE, VQ35DE]
ECM
25
(P/L)11 2
(B)EVAP canister purge volume
control solenoid valveOutput[Engine is running]
 Idle speed
 Accelerator pedal: Not de-
pressed even slightly, after
engine startingBATTERY VOLTAGE
(11 - 14 V)
[Engine is running]
 Engine speed: About 2,000
rpm (More than 100 seconds
after starting engine)BATTERY VOLTAGE
(11 - 14 V)
26
(GR/B)11 2
(B)VIAS control solenoid valve 2 Output[Engine is running]
 Warm-up condition
 Idle speedBATTERY VOLTAGE
(11 - 14 V)
[Engine is running]
 Warm-up condition
 When revving engine up to
5,000 rpm quicklyBATTERY VOLTAGE (11 - 14 V)
↓
0 - 1.0 V
↓
BATTERY VOLTAGE (11 - 14 V)
27
(V)11 2
(B)VIAS control solenoid valve 1 Output[Engine is running]
 Warm-up condition
 Idle speedBATTERY VOLTAGE
(11 - 14 V)
[Engine is running]
 Warm-up condition
 When revving engine up to
5,000 rpm quicklyBATTERY VOLTAGE (11 - 14 V)
↓
0 - 1.0 V
↓
BATTERY VOLTAGE (11 - 14 V)
28
(BR/W)11 2
(B)Electronic controlled engine
mount control solenoid valveOutput[Engine is running]
 Idle speed0 - 1.0 V
[Engine is running]
 Engine speed: More than 950
rpmBATTERY VOLTAGE
(11 - 14 V)
33
(W)35
(B)Heated oxygen sensor 2
(Bank 1)Input[Engine is running]
 Revving engine from idle to
3,000 rpm quickly after the fol-
lowing conditions are met
- Engine: after warming up
- Keeping the engine speed be-
tween 3,500 and 4,000 rpm
for 1 minute and at idle for 1
minute under no load0 - 1.0 V
34
(W/L)35
(B)Heated oxygen sensor 2
(Bank 2)Input[Engine is running]
 Revving engine from idle to
3,000 rpm quickly after the fol-
lowing conditions are met
- Engine: after warming up
- Keeping the engine speed be-
tween 3,500 and 4,000 rpm
for 1 minute and at idle for 1
minute under no load0 - 1.0 V Terminal No. Description
ConditionVa l u e
(Approx.)
+ -– Signal nameInput/
Output
JMBIA0039GB
JMBIA0040GB

ECM
EC-365
< ECU DIAGNOSIS >[VQ25DE, VQ35DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O35
(B)—Sensor ground
(Heated oxygen sensor 2)—— —
36
(B)—Sensor ground
(Throttle position sensor)—— —
37
(W)36
(B)Throttle position sensor 1 Input[Ignition switch: ON]
 Engine stopped
 Selector lever: D
 Accelerator pedal: Fully re-
leasedMore than 0.36 V
[Ignition switch: ON]
 Engine stopped
 Selector lever: D
 Accelerator pedal: Fully de-
pressedLess than 4.75 V
38
(R)36
(B)Throttle position sensor 2 Input[Ignition switch: ON]
 Engine stopped
 Selector lever: D
 Accelerator pedal: Fully re-
leasedLess than 4.75 V
[Ignition switch: ON]
 Engine stopped
 Selector lever: D
 Accelerator pedal: Fully de-
pressedMore than 0.36 V
39
(R)40
(G)Refrigerant pressure sensor Input[Engine is running]
 Warm-up condition
 Both A/C switch and blower
fan motor switch: ON (Com-
pressor operates)1.0 - 4.0 V
40
(G)—Sensor ground
(Refrigerant pressure sensor)—— —
41
(O/B)48
(B/P)Power steering pressure sen-
sorInput[Engine is running]
 Steering wheel: Being turned0.5 - 4.5 V
[Engine is running]
 Steering wheel: Not being
turned0.4 - 0.8 V
42
(BR)44
(G/B)Battery current sensor Input[Engine is running]
 Battery: Fully charged*
2
 Idle speed2.6 - 3.5 V
44
(G/B)—Sensor ground
(Battery current sensor)—— —
45
(P)49
(L)A/F sensor 1 (Bank 1) Input [Ignition switch: ON] 2.2 V
46
(Y)52
(B/R)Engine coolant temperature
sensorInput [Engine is running]0 - 4.8 V
Output voltage varies with engine
coolant temperature.
47
(G)36
(B)Sensor power supply
(Throttle position sensor)— [Ignition switch: ON] 5 V
48
(B/P)—Sensor ground
(Power steering pressure
sensor)—— —
49
(L)11 2
(B)A/F sensor 1 (Bank 1) Input[Engine is running]
 Warm-up condition
 Engine speed: 2,000 rpm1.8 V
Output voltage varies with air fuel
ratio. Terminal No. Description
ConditionVa l u e
(Approx.)
+-– Signal nameInput/
Output

EC-366
< ECU DIAGNOSIS >[VQ25DE, VQ35DE]
ECM
50
(L/Y)56
(G/B)Intake air temperature sensor Input [Engine is running]0 - 4.8 V
Output voltage varies with intake
air temperature.
51
(R/Y)44
(G/B)Sensor power supply
(Battery current sensor)— [Ignition switch: ON] 5 V
52
(B/R)—Sensor ground
(Engine coolant temperature
sensor/Engine oil tempera-
ture sensor)—— —
53
(V)57
(LG)A/F sensor 1 (Bank 2) Input [Ignition switch: ON] 2.2 V
54
(G)52
(B/R)Engine oil temperature sensor Input [Engine is running]0 - 4.8 V
Output voltage varies with engine
oil temperature.
55
(SB)48
(Y)Sensor power supply
(Power steering pressure
sensor)— [Ignition switch: ON] 5 V
56
(G/B)—Sensor ground
(Mass air flow sensor/Intake
air temperature sensor)—— —
57
(LG)11 2
(B)A/F sensor 1 (Bank 2) Input[Engine is running]
 Warm-up condition
 Engine speed: 2,000 rpm1.8 V
Output voltage varies with air fuel
ratio.
58
(O)56
(G/B)Mass air flow sensor Input[Engine is running]
 Warm-up condition
 Idle speed0.9 - 1.2 V
[Engine is running]
 Warm-up condition
 Engine speed: 2,500 rpm1.6 - 1.9 V
59
(G/W)64
(B/R)Sensor power supply
[Camshaft position sensor
(PHASE) (Bank 1)]— [Ignition switch: ON] 5 V
60
(Y/B)—Sensor ground
[Crankshaft position sensor
(POS)]—— —
61
(B)67
(GR)Knock sensor (Bank 1) Input[Engine is running]
 Idle speed2.5 V*
1
62
(W)67
(GR)Knock sensor (Bank 2) Input[Engine is running]
 Idle speed2.5 V*1
63
(R/W)68
(Y/G)Sensor power supply
[Camshaft position sensor
(PHASE) (Bank 2)]— [Ignition switch: ON] 5 V
64
(B/R)—Sensor ground
[Camshaft position sensor
(PHASE) (Bank 1)]—— — Terminal No. Description
ConditionVa l u e
(Approx.)
+ -– Signal nameInput/
Output

ECM
EC-367
< ECU DIAGNOSIS >[VQ25DE, VQ35DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
65
(W/B)60
(Y/B)Crankshaft position sensor
(POS)Input[Engine is running]
 Warm-up condition
 Idle speed
NOTE:
The pulse cycle changes de-
pending on rpm at idle4.0 - 5.0 V
[Engine is running]
 Engine speed: 2,000 rpm4.0 - 5.0 V
67
(GR)—Sensor ground
(Knock sensor)—— —
68
(Y/G)—Sensor ground
[Camshaft position sensor
(PHASE) (Bank 2)]—— —
69
(BR/W)68
(Y/G)Camshaft position sensor
(PHASE) (Bank 2)Input[Engine is running]
 Warm-up condition
 Idle speed
NOTE:
The pulse cycle changes de-
pending on rpm at idle3.0 - 5.0 V
[Engine is running]
 Engine speed is 2,000 rpm3.0 - 5.0 V
70
(W/R)64
(B/R)Camshaft position sensor
(PHASE) (Bank 1)Input[Engine is running]
 Warm-up condition
 Idle speed
NOTE:
The pulse cycle changes de-
pending on rpm at idle3.0 - 5.0 V
[Engine is running]
 Engine speed is 2,000 rpm3.0 - 5.0 V Terminal No. Description
ConditionVa l u e
(Approx.)
+-– Signal nameInput/
OutputJMBIA0041GB
JMBIA0042GB
JMBIA0045GB
JMBIA0046GB
JMBIA0045GB
JMBIA0046GB

EC-368
< ECU DIAGNOSIS >[VQ25DE, VQ35DE]
ECM
72
(BR/W)40
(G)Sensor power supply
(Refrigerant pressure sensor)— [Ignition switch: ON] 5 V
75
(Y)11 2
(B)Intake valve timing control so-
lenoid valve (Bank 2)Output[Engine is running]
 Warm-up condition
 Idle speedBATTERY VOLTAGE
(11 - 14 V)
[Engine is running]
 Warm-up condition
 Engine speed: 2,000rpm7 - 12 V
76
(R/G)60
(Y/B)Sensor power supply
[Crankshaft position sensor
(POS)]— [Ignition switch: ON] 5 V
77
(W/L)11 2
(B)Power supply for ECM (Back-
up)Input [Ignition switch: OFF]BATTERY VOLTAGE
(11 - 14 V)
78
(R/L)11 2
(B)Intake valve timing control so-
lenoid valve (Bank 1)Output[Engine is running]
 Warm-up condition
 Idle speedBATTERY VOLTAGE
(11 - 14 V)
[Engine is running]
 Warm-up condition
 Engine speed: 2,000rpm7 - 12 V
81
(W)84
(B)Accelerator pedal position
sensor 1Input[Ignition switch: ON]
 Engine stopped
 Accelerator pedal: Fully re-
leased0.5 - 1.0 V
[Ignition switch: ON]
 Engine stopped
 Accelerator pedal: Fully de-
pressed4.2 - 4.8 V
82
(O)100
(G)Accelerator pedal position
sensor 2Input[Ignition switch: ON]
 Engine stopped
 Accelerator pedal: Fully re-
leased0.25 - 0.50 V
[Ignition switch: ON]
 Engine stopped
 Accelerator pedal: Fully de-
pressed2.0 - 2.5 V
83
(BR)84
(B)Sensor power supply
(Accelerator pedal position
sensor 1)— [Ignition switch: ON] 5 V
84
(B)—Sensor ground
(Accelerator pedal position
sensor 1)—— — Terminal No. Description
ConditionVa l u e
(Approx.)
+ -– Signal nameInput/
Output
JMBIA0038GB
JMBIA0038GB

ECM
EC-369
< ECU DIAGNOSIS >[VQ25DE, VQ35DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
85
(Y)92
(BR)ASCD steering switch Input[Ignition switch: ON]
 ASCD steering switch: OFF4 V
[Ignition switch: ON]
 MAIN switch: Pressed0 V
[Ignition switch: ON]
 CANCEL switch: Pressed1 V
[Ignition switch: ON]
 RESUME/ACCELERATE
switch: Pressed3 V
[Ignition switch: ON]
 SET/COAST switch: Pressed2 V
87
(GR)100
(G)Sensor power supply
(Accelerator pedal position
sensor 2)— [Ignition switch: ON] 5 V
88
(O)— Data link connectorInput/
Output——
92
(BR)—Sensor ground
(ASCD steering switch)—— —
93
(BR)11 2
(B)Ignition switch Input[Ignition switch: OFF] 0 V
[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14 V)
94
(GR)11 2
(B)Engine speed output signal Output[Engine is running]
 Warm-up condition
 Idle speed
NOTE:
The pulse cycle changes de-
pending on rpm at idle1 V
[Engine is running]
 Engine speed: 2,000 rpm1 V
97
(P)— CAN communication lineInput/
Output——
98
(L)— CAN communication lineInput/
Output——
100
(G)—Sensor ground
(Accelerator pedal position
sensor 2)—— —
102
(R)11 2
(B)PNP signal Input[Ignition switch: ON]
 Selector lever: P or NBATTERY VOLTAGE
(11 - 14 V)
[Ignition switch: ON]
 Selector lever: Except above0 V
105
(V)11 2
(B)Power supply for ECM Input [Ignition switch: ON]BATTERY VOLTAGE
(11 - 14 V)
Terminal No. Description
ConditionVa l u e
(Approx.)
+-– Signal nameInput/
Output
JMBIA0076GB
JMBIA0077GB

EC-370
< ECU DIAGNOSIS >[VQ25DE, VQ35DE]
ECM
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
*1: This may vary depending on internal resistance of the tester.
*2: Before measuring the terminal voltage, confirm that the battery is fully charged. Refer to PG-3, "
How to Handle Battery". 106
(SB)11 2
(B)Stop lamp switch Input[Ignition switch: OFF]
 Brake pedal: Fully released0 V
[Ignition switch: OFF]
 Brake pedal: Slightly de-
pressedBATTERY VOLTAGE
(11 - 14 V)
107
(B)
108
(B)— ECM ground — — —
11 0
(G)11 2
(B)ASCD brake switch Input[Ignition switch: ON]
 Brake pedal: Slightly de-
pressed0 V
[Ignition switch: ON]
 Brake pedal: Fully releasedBATTERY VOLTAGE
(11 - 14 V)
111
(B)
11 2
(B)— ECM ground — — — Terminal No. Description
ConditionVa l u e
(Approx.)
+ -– Signal nameInput/
Output

ECM
EC-387
< ECU DIAGNOSIS >[VQ25DE, VQ35DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
DTC RELATED ITEM
Engine operating condi-
tion in fail-safe modeDetected items RemarksReference
page
Engine speed will not
rise more than 2,500 rpm
due to the fuel cutMalfunction indicator
circuitWhen there is an open circuit on MI circuit, the ECM cannot warn the
driver by illuminating MI when there is malfunction on engine control
system.
Therefore, when electrical controlled throttle and part of ECM related
diagnoses are continuously detected as NG for 5 trips, ECM warns the
driver that engine control system malfunctions and MI circuit is open by
means of operating the fail-safe function.
The fail-safe function also operates when above diagnoses except MI
circuit are detected and demands the driver to repair the malfunction.EC-346
DTC No. Detected items Engine operating condition in fail-safe mode
P0011
P0021Intake valve timing control The signal is not energized to the intake valve timing control solenoid valve and the valve
control does not function.
P0102
P0103Mass air flow sensor circuit Engine speed will not rise more than 2,400 rpm due to the fuel cut.
P0117
P0118Engine coolant tempera-
ture sensor circuitEngine coolant temperature will be determined by ECM based on the following condition.
CONSULT-III displays the engine coolant temperature decided by ECM.
ConditionEngine coolant temperature decided
(CONSULT-III display)
Just as ignition switch is turned ON
or START40°C (104°F)
Approx. 4 minutes or more after
engine starting80°C (176°F)
Except as shown above40 - 80°C (104 - 176°F)
(Depends on the time)
When the fail-safe system for engine coolant temperature sensor is activated, the cooling
fan operates while engine is running.
P0122
P0123
P0222
P0223
P2135Throttle position sensor The ECM controls the electric throttle control actuator in regulating 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.
P0500 Vehicle speed sensor The cooling fan operates (Highest) while engine is running.
P0605 ECM (When ECM calculation function is a malfunctioning:)
ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
ECM deactivates ASCD operation.
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.
P1805 Brake switch ECM controls the electric throttle control actuator by regulating 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
P2100
P2103Throttle control 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
functionECM 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.