ECU NISSAN TEANA 2008 Service Manual

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]
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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]
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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-371
< ECU DIAGNOSIS >[VQ25DE, VQ35DE]
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Wiring Diagram—ENGINE CONTROL SYSTEM—INFOID:0000000003856869
JCBWM0560GB

EC-372
< ECU DIAGNOSIS >[VQ25DE, VQ35DE]
ECM
JCBWM0561GB

ECM
EC-373
< ECU DIAGNOSIS >[VQ25DE, VQ35DE]
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D
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EC
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JCBWM0562GB

EC-374
< ECU DIAGNOSIS >[VQ25DE, VQ35DE]
ECM
JCBWM0563GB

ECM
EC-375
< ECU DIAGNOSIS >[VQ25DE, VQ35DE]
C
D
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EC
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JCBWM0564GB