Nissan Altima L32. Instruction — part 599

ECM

EC-1517

< ECU DIAGNOSIS >

[VQ35DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

17

(R)

112

(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 load

10 V

[Ignition switch: ON]
• Engine stopped
[Engine is running]
• Engine speed: Above 3,600

rpm

BATTERY VOLTAGE
(11 - 14 V)

24

(W/B)

112

(B)

ECM relay
(Self shut-off)

Output

[Engine is running]
[Ignition switch: OFF]
• A few seconds after turning

ignition switch OFF

0 - 1.5 V

[Ignition switch: OFF]
• More than a few seconds after

turning ignition switch OFF

BATTERY VOLTAGE
(11 - 14 V)

25

(P/L)

112

(B)

EVAP canister purge volume
control solenoid valve

Output

[Engine is running]
• Idle speed
• Accelerator pedal: Not de-

pressed even slightly, after
engine starting

BATTERY VOLTAGE
(11 - 14 V)

[Engine is running]
• Engine speed: approximately

2,000 rpm (More than 100
seconds after starting engine)

BATTERY VOLTAGE
(11 - 14 V)

26

(GR)

112

(B)

VIAS control solenoid valve 2

Output

[Engine is running]
• Warm-up condition
• Idle speed

BATTERY VOLTAGE
(11 - 14 V)

[Engine is running]
• Warm-up condition
• When revving engine up to

5,000 rpm quickly

BATTERY VOLTAGE (11 - 14 V)
↓
0 - 1.0 V
↓
BATTERY VOLTAGE (11 - 14 V)

27

(V)

112

(B)

VIAS control solenoid valve 1

Output

[Engine is running]
• Warm-up condition
• Idle speed

BATTERY VOLTAGE
(11 - 14 V)

[Engine is running]
• Warm-up condition
• When revving engine up to

5,000 rpm quickly

BATTERY VOLTAGE (11 - 14 V)
↓
0 - 1.0 V
↓
BATTERY VOLTAGE (11 - 14 V)

Terminal No.

Description

Condition

Value

(Approx.)

+

-–

Signal name

Input/

Output

JMBIA0902GB

JMBIA0039GB

JMBIA0040GB

EC-1518

< ECU DIAGNOSIS >

[VQ35DE]

ECM

28

(BR/W)

112

(B)

Electronic controlled engine
mount control solenoid valve

Output

[Engine is running]
• Idle speed

0 - 1.0 V

[Engine is running]
• Engine speed: More than 950

rpm

BATTERY 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 load

0 - 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 load

0 - 1.0 V

35

(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 position: D

(CVT), 1st (M/T)

• Accelerator pedal: Fully re-

leased

More than 0.36 V

[Ignition switch: ON]
• Engine stopped
• Selector lever position: D

(CVT), 1st (M/T)

• Accelerator pedal: Fully de-

pressed

Less than 4.75 V

38

(R)

36

(B)

Throttle position sensor 2

Input

[Ignition switch: ON]
• Engine stopped
• Selector lever position: D

(CVT), 1st (M/T)

• Accelerator pedal: Fully re-

leased

Less than 4.75 V

[Ignition switch: ON]
• Engine stopped
• Selector lever position: D

(CVT), 1st (M/T)

• Accelerator pedal: Fully de-

pressed

More 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

Terminal No.

Description

Condition

Value

(Approx.)

+

-–

Signal name

Input/

Output

ECM

EC-1519

< ECU DIAGNOSIS >

[VQ35DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

40

(G)

—

Sensor ground
(Refrigerant pressure sensor)

—

—

—

41

(O/B)

48

(B/P)

Power steering pressure sen-
sor

Input

[Engine is running]
• Steering wheel: Being turned

0.5 - 4.5 V

[Engine is running]
• Steering wheel: Not being

turned

0.4 - 0.8 V

42

(G)

44

(G/B)

Battery current sensor

Input

[Engine is running]
• Battery: Fully charged*

2

• Idle speed

2.6 - 3.5 V

44

(G/B)

—

Sensor ground
(Battery current sensor)

—

—

—

45

(B/W)

49

(L)

A/F sensor 1 (bank 1)

Input

[Ignition switch: ON]

2.2 V

46

(Y)

52

(B/G)

Engine coolant temperature
sensor

Input

[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)

112

(B)

A/F sensor 1 (bank 1)

Input

[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm

1.8 V
Output voltage varies with air fuel
ratio.

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/G)

—

Sensor ground
(Engine coolant temperature
sensor/Engine oil tempera-
ture sensor)

—

—

—

53

(V)

112

(B)

A/F sensor 1 (bank 2)

Input

[Ignition switch: ON]

2.2 V

54

(G/R)

52

(B/G)

Engine oil temperature sensor

Input

[Engine is running]

0 - 4.8 V
Output voltage varies with engine
oil temperature.

55

(G/Y)

48

(B/P)

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)

112

(B)

A/F sensor 1 (bank 2)

Input

[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm

1.8 V
Output voltage varies with air fuel
ratio.

Terminal No.

Description

Condition

Value

(Approx.)

+

-–

Signal name

Input/

Output

EC-1520

< ECU DIAGNOSIS >

[VQ35DE]

ECM

58

(O)

56

(G/B)

Mass air flow sensor

Input

[Engine is running]
• Warm-up condition
• Idle speed

0.9 - 1.2 V

[Engine is running]
• Warm-up condition
• Engine speed: 2,500 rpm

1.6 - 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

(GR)

67

(GR/B)

Knock sensor (bank 1)

Input

[Engine is running]
• Idle speed

2.5 V*

1

62

(W)

67

(GR/B)

Knock sensor (bank 2)

Input

[Engine is running]
• Idle speed

2.5 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)]

—

—

—

65

(W)

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 idle

4.0 - 5.0 V

[Engine is running]
• Engine speed: 2,000 rpm

4.0 - 5.0 V

67

(GR/B)

—

Sensor ground
(Knock sensor)

—

—

—

68

(Y/G)

—

Sensor ground
[Camshaft position sensor
(PHASE) (bank 2)]

—

—

—

Terminal No.

Description

Condition

Value

(Approx.)

+

-–

Signal name

Input/

Output

JMBIA0041GB

JMBIA0042GB