Nissan Primera P12. Manual - part 218

TROUBLE DIAGNOSIS

EC-57

[YD (WITH EURO-OBD)]

C

D

E

F

G

H

I

J

K

L

M

A

EC

ECM Harness Connector Terminal Layout

EBS013JP

ECM Terminals And Reference Value

EBS013JQ

PREPARATION

1.

ECM is located behind the glove box. For this inspection,
remove glove box.

2.

Remove ECM harness protector.

3.

When disconnecting ECM harness connector, loosen it with
levers as far as they will go as shown in the figure.

4.

Connect a break-out box (SST) and Y-cable adapter (SST)
between the ECM and ECM harness connector.

●

Use extreme care not to touch 2 pins at one time.

●

Data is for comparison and may not be exact.

ECM INSPECTION TABLE

Remarks: Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.

CAUTION:

Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.

MBIB0045E

MBIB1086E

MBIB0145E

TERMI-

NAL

NO.

WIRE

COLOR

ITEM

CONDITION

DATA

(DC Voltage and Pulse Signal)

1
2
3

B
B
B

ECM ground

[Engine is running]

●

Idle speed

Approximately 0V

EC-58

[YD (WITH EURO-OBD)]

TROUBLE DIAGNOSIS

4

5

O/B

B

Fuel injector power supply
(For cylinder No. 1 and 4)
Fuel injector power supply
(For cylinder No. 2 and 3)

[Engine is running]

●

Warm-up condition

●

Idle speed

5 - 10V

[Engine is running]

●

Warm-up condition

●

Engine speed is 2,000 rpm

5 - 10V

6

L

Turbocharger boost control
solenoid valve

[Ignition switch ON]

●

Warm-up condition

●

Idle speed

0 - 12.5V

[Ignition switch ON]

●

Warm-up condition

●

Engine speed is 2,000 rpm

0 - 12.5V

10

Y/L

Fuel pump power supply

[Engine is running]

●

Warm-up condition

●

Idle speed

0 - 12.5V

[Engine is running]

●

Warm-up condition

●

Engine speed is 2,000 rpm

0 - 12.5V

TERMI-

NAL

NO.

WIRE

COLOR

ITEM

CONDITION

DATA

(DC Voltage and Pulse Signal)

MBIB0883E

MBIB0884E

MBIB0889E

MBIB0890E

MBIB0885E

MBIB0886E

TROUBLE DIAGNOSIS

EC-59

[YD (WITH EURO-OBD)]

C

D

E

F

G

H

I

J

K

L

M

A

EC

21
22
23
24

L
L
W
W

Fuel injector No. 2
Fuel injector No. 2
Fuel injector No. 3
Fuel injector No. 3

[Engine is running]

●

Warm-up condition

●

Idle speed

0 - 9V

[Engine is running]

●

Warm-up condition

●

Engine speed is 2,000 rpm

0 - 9V

25
26
27
28

GY
W/L
OR/B
GY/B

EGR volume control valve

[Engine is running]

●

Warm-up condition

●

Idle speed

0.1 - 14V
(Voltage signals of each ECM ter-
minals differ according to the con-
trol position of EGR volume
control valve.)

29

L

Fuel pump

[Engine is running]

●

Warm-up condition

●

Idle speed

0.5 - 1.0V

[Engine is running]

●

Warm-up condition

●

Engine speed is 2,000 rpm

0.5 - 1.0V

37

R/G

Glow relay

Refer to

EC-317, "GLOW CONTROL SYSTEM"

.

40
41
42
43

B/P
B/P
PU/G
PU/G

Fuel injector No. 4
Fuel injector No. 4
Fuel injector No. 1
Fuel injector No. 1

[Engine is running]

●

Warm-up condition

●

Idle speed

0 - 9V

[Engine is running]

●

Warm-up condition

●

Engine speed is 2,000 rpm

0 - 9V

TERMI-

NAL

NO.

WIRE

COLOR

ITEM

CONDITION

DATA

(DC Voltage and Pulse Signal)

MBIB0881E

MBIB0882E

MBIB0887E

MBIB0888E

MBIB0881E

MBIB0882E

EC-60

[YD (WITH EURO-OBD)]

TROUBLE DIAGNOSIS

44

L

Crankshaft position sen-
sor power supply

[Ignition switch ON]

Approximately 5.3V

45

R

Camshaft position sensor
power supply

[Ignition switch ON]

Approximately 5.3V

46

L/W

Crankshaft position sensor

[Engine is running]

●

Warm-up condition

●

Idle speed

0 - 6V

[Engine is running]

●

Warm-up condition

●

Engine speed is 2,000 rpm

0 - 6V

47

B

Camshaft position sensor

[Engine is running]

●

Warm-up condition

●

Idle speed

0 - 6V

[Engine is running]

●

Warm-up condition

●

Engine speed is 2,000 rpm

0 - 6V

48
49

R
R

Fuel rail pressure sensor

[Engine is running]

●

Warm-up condition

●

Idle speed

1.7 - 2.0V

[Engine is running]

●

Warm-up condition

●

Engine speed is 2,000 rpm

2.0 - 2.3V

50

PU

Fuel pump temperature
sensor

[Engine is running]

●

Warm-up condition

Approximately 0.3 - 5.3V
Output voltage varies with fuel
pump temperature

51

L/OR

Engine coolant tempera-
ture sensor

[Engine is running]

●

Warm-up condition

Approximately 0.3 - 5.3V
Output voltage varies with engine
coolant temperature

TERMI-

NAL

NO.

WIRE

COLOR

ITEM

CONDITION

DATA

(DC Voltage and Pulse Signal)

MBIB0879E

MBIB0880E

MBIB0877E

MBIB0878E