Nissan Versa Sedan. Manual — part 270

ECM

EC-79

< ECU DIAGNOSIS INFORMATION >

[HR16DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

50

(L/R)

59

(L/Y)

Heated oxygen sensor 2

Input

[Engine is running]
• Revving engine from idle to 3,000

rpm quickly after the following condi-
tions are met

- Engine: after warming up
- Keeping the engine speed between

3,500 and 4,000 rpm for 1 minute
and at idle for 1 minute under no
load

0 - 1.0 V

51

(P)

—

Sensor ground
(Fuel tank temperature sen-
sor)

—

—

—

52

(LG)

—

Sensor ground
(Mass air flow sensor)

—

—

—

53

(L)

108

(B)

A/F sensor 1

Input

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

1.8 V
Output voltage varies with air fuel
ratio.

54

(BR)

—

Sensor ground
(Engine oil temperature sen-
sor)

—

—

—

55

(O)

—

Sensor ground
(Intake air temperature sen-
sor)

—

—

—

57

(P)

54

(BR)

Engine oil temperature sen-
sor

Input

[Engine is running]

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

58

(L)

68

(R)

Battery current sensor

Input

[Engine is running]
• Battery: Fully charged

*2

• Idle speed

2.5 - 3.5 V

59

(L/Y)

—

Sensor ground
(Heated oxygen sensor 2)

—

—

—

60

(L)

—

Sensor ground
(Engine oil pressure sensor)

—

—

—

61

(L)

62

(G)

Crankshaft position sensor

Input

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

NOTE:
The pulse cycle changes depending
on rpm at idle

4.0 V

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

4.0 V

62

(G)

—

Sensor ground
(Crankshaft position sensor)

—

—

—

63

(W)

—

Sensor ground
(Camshaft position sensor)

—

—

—

Terminal No.

Description

Condition

Value

(Approx.)

+

–

Signal name

Input/

Output

JMBIA2185GB

JMBIA2186GB

EC-80

< ECU DIAGNOSIS INFORMATION >

[HR16DE]

ECM

65

(R)

63

(W)

Intake camshaft position
sensor

Input

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

NOTE:
The pulse cycle changes depending
on rpm at idle

4.3 V

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

4.3 V

68

(R)

—

Sensor ground
(EVAP control system pres-
sure sensor)

—

—

—

69

(BR)

108

(B)

Park/Neutral position signal

Input

[Ignition switch: ON]
• Shift lever: Neutral

BATTERY VOLTAGE
(11 - 14 V)

[Ignition switch: ON]
• Shift lever: Except above position

0 V

71

(Y)

68

(R)

Sensor power supply
(EVAP control system pres-
sure sensor, battery current
sensor)

—

[Ignition switch: ON]

5 V

72

(W)

36

(R)

Sensor power supply
(Throttle position sensor)

—

[Ignition switch: ON]

5 V

73

(P)

108

(B)

Intake valve timing control
solenoid valve

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

2,000rpm quickly

7 - 10 V

74

(O)

60

(L)

Sensor power supply
(Engine oil pressure sensor)

—

[Ignition switch: ON]

5 V

75

(BR)

62

(G)

Sensor power supply
(Crankshaft position sensor)

—

[Ignition switch: ON]

5 V

Terminal No.

Description

Condition

Value

(Approx.)

+

–

Signal name

Input/

Output

JSBIA0718GB

JSBIA0719GB

JSBIA0720GB

ECM

EC-81

< ECU DIAGNOSIS INFORMATION >

[HR16DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

77

(P)

108

(B)

Exhaust valve timing control
solenoid valve

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

2,000rpm quickly

7 - 10 V

78

(LW)

63

(W)

Sensor power supply
(Camshaft position sensor)

—

[Ignition switch: ON]

5 V

81

(V)

108

(B)

Power supply for ECM
(Back-up)

Input

[Ignition switch: OFF]

BATTERY VOLTAGE
(11 - 14 V)

83

(P)

—

CAN-L

Input/

Output

—

—

84

(L)

—

CAN-H

Input/

Output

—

—

85

(V)

98

(LG)

Refrigerant pressure sensor

Input

[Engine is running]
• Warm-up condition
• Both A/C switch and blower fan

switch: ON (Compressor operates)

1.0 - 4.0 V

88

(GR)

—

Data link connector

Input/

Output

—

—

92

(R)

108

(B)

Clutch pedal position switch

Input

[Ignition switch: ON]
• Clutch pedal: Fully released

BATTERY VOLTAGE
(11 - 14 V)

[Ignition switch: ON]
• Clutch pedal: Fully depressed

0 V

93

(L)

108

(B)

Ignition switch

Input

[Ignition switch: OFF]

0 V

[Ignition switch: ON]

BATTERY VOLTAGE
(11 - 14 V)

94

(V)

95

(B)

ASCD steering switch

Input

[Ignition switch: ON]
• ASCD steering switch: OFF

4 V

[Ignition switch: ON]
• MAIN switch: Pressed

0 V

[Ignition switch: ON]
• CANCEL switch: Pressed

1 V

[Ignition switch: ON]
• ACCEL/RES switch: Pressed

3 V

[Ignition switch: ON]
• COAST/SET switch: Pressed

2 V

95

(B)

—

Sensor ground
(ASCD steering switch)

—

—

—

98

(LG)

—

Sensor ground
(Refrigerant pressure sen-
sor)

—

—

—

99

(LG)

108

(B)

Stop lamp switch

Input

[Ignition switch: OFF]
• Brake pedal: Fully released

0 V

[Ignition switch: OFF]
• Brake pedal: Slightly depressed

BATTERY VOLTAGE
(11 - 14 V)

Terminal No.

Description

Condition

Value

(Approx.)

+

–

Signal name

Input/

Output

JSBIA0720GB

EC-82

< ECU DIAGNOSIS INFORMATION >

[HR16DE]

ECM

: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)

*1: Not used

*2: Before measuring the terminal voltage, confirm that the battery is fully charged. Refer to

PG-4, "Work

Flow"

.

Fail Safe

INFOID:0000000009267024

NON DTC RELATED ITEM

100

(G)

108

(B)

Brake pedal position switch

Input

[Ignition switch: OFF]
• Brake pedal: Fully released

BATTERY VOLTAGE
(11 - 14 V)

[Ignition switch: OFF]
• Brake pedal: Slightly depressed

0 V

101
(W)

98

(LG)

Sensor power supply
(Refrigerant pressure sen-
sor)

—

[Ignition switch: ON]

5 V

102

(BR)

104

(Y)

Sensor power supply
(Accelerator pedal position
sensor 2)

—

[Ignition switch: ON]

5 V

103

(GR)

104

(Y)

Accelerator pedal position
sensor 2

Input

[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully released

0.3 - 0.6 V

[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully depressed

1.95 - 2.4 V

104

(Y)

—

Sensor ground
(Accelerator pedal position
sensor 2)

—

—

—

105

(G)

108

(B)

Power supply for ECM

Input

[Ignition switch: ON]

BATTERY VOLTAGE
(11 - 14 V)

106

(V)

111

(R)

Sensor power supply
(Accelerator pedal position
sensor 1)

—

[Ignition switch: ON]

5 V

108

(B)

—

ECM ground

—

—

—

110

(SB)

111

(R)

Accelerator pedal position
sensor 1

Input

[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully released

0.6 - 0.9 V

[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully depressed

3.9 - 4.7 V

111

(R)

—

Sensor ground
(Accelerator pedal position
sensor 1)

—

—

—

Terminal No.

Description

Condition

Value

(Approx.)

+

–

Signal name

Input/

Output

Detected

items

Engine operating condition

in fail-safe mode

Remarks

Reference page

Malfunction
indicator
lamp circuit

Engine speed will not rise
more than 2,500 rpm due
to the fuel cut

When there is an open circuit on MIL circuit, the ECM cannot warn the
driver by lighting up MIL 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 MIL circuit is open
by means of operating fail safe function.
The fail safe function also operates when above diagnoses except MIL
circuit are detected and demands the driver to repair the malfunction.

EC-442, "Compo-

nent Function

Check"