Nissan Primera P11. Manual - part 87

ECM INSPECTION TABLE

Specification data are reference values and are measured between each terminal and ground.

CAUTION:

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

TER-

MINAL

NO.

WIRE

COLOR

ITEM

CONDITION

DATA

(DC Voltage and

Pulse Signal)

101
102
103

B/L

Electric governor ground

Engine is running. (Warm-up condition)

Idle speed

qApproximately 10.5V

SEF562S

Engine is running. (Warm-up condition)

Engine speed is 2,000 rpm

Approximately 10.5

SEF563S

104
105
106

B

ECM ground

Engine is running.

Idle speed

Engine ground
(Probe this terminal with

@

tester probe when

measuring.)

107
108
109

R

Power supply for ECM

Ignition switch “ON”

BATTERY VOLTAGE
(11 - 14V)

202

B/W

Injection timing control
valve

Engine is running. (Warm-up condition)

Idle speed

Approximately 9V

SEF564S

Engine is running. (Warm-up condition)

Engine speed is 2,000 rpm

Approximately 8V

SEF565S

TROUBLE DIAGNOSIS — General Description

CD20T

ECM Terminals and Reference Value (Cont’d)

EC-53

TER-

MINAL

NO.

WIRE

COLOR

ITEM

CONDITION

DATA

(DC Voltage and

Pulse Signal)

204

L/W

Air conditioner relay

Engine is running.

Both A/C switch and blower switch are
“ON”

Approximately 0.4V

Engine is running.

A/C switch is “OFF”

BATTERY VOLTAGE
(11 - 14V)

208

P

EGRC-solenoid valve A

Engine is running. (Warm-up condition)

Idle speed

BATTERY VOLTAGE (11
- 14V)

Engine is running. (Warm-up condition)

Engine speed is 2,800 rpm

Approximately 0.3V

214

W/R

Glow relay

Refer to “Glow control System”.

215

OR/L

Malfunction indicator

Ignition switch “ON”

Approximately 1.0V

Engine is running.

Idle speed

BATTERY VOLTAGE
(11 - 14V)

218

OR

Mass air flow sensor
ground

Engine is running.

Idle speed

Approximately 0V

219

LG/R

Cooling fan relay
(Low speed)

Engine is running.

Cooling fan is not operating.

BATTERY VOLTAGE
(11 - 14V)

Engine is running.

Cooling fan is operating.

Approximately 0.4V

220

LG

Cooling fan relay
(High speed)

Engine is running.

Cooling fan is not operating.
Cooling fan is operating at low speed.

BATTERY VOLTAGE
(11 - 14V)

Engine is running.

Cooling fan is operating at high speed.

Approximately 0.5V

221

P/L

Glow lamp

Ignition switch “ON”

Glow lamp is “ON”.

Approximately 1.0V

Ignition switch “ON”

Glow lamp is “OFF”

BATTERY VOLTAGE
(11 - 14V)

223

W/L

Mass air flow sensor
power supply

Ignition switch “ON”

Approximately 5V

224

L/W

Mass air flow sensor

Engine is running. (Warm-up condition)

Idle speed

1.9 - 2.3V

Engine is running. (Warm-up condition)

Engine speed is 2,000 rpm

2.5 - 2.9V

TROUBLE DIAGNOSIS — General Description

CD20T

ECM Terminals and Reference Value (Cont’d)

EC-54

TER-

MINAL

NO.

WIRE

COLOR

ITEM

CONDITION

DATA

(DC Voltage and

Pulse Signal)

320

W

Control sleeve position
sensor power supply

Engine is running.

Idle speed

Approximately 2.6V

SEF559S

321

B

Control sleeve position
sensor ground

Engine is running.

Idle speed

Approximately 2.6V

SEF560S

322

R

Control sleeve position
sensor (Reference sig-
nal)

Engine is running. (Warm-up condition)

Idle speed

Approximately 2.6V

SEF561S

325

W/G

Engine control module
relay (Self-shutoff)

Engine is running.

Ignition switch “LOCK”

For a few seconds after turning ignition
switch to the “LOCK” position

0 - 1V

Ignition switch “LOCK”

Following a few seconds delay after turning
ignition switch to the “LOCK” position

BATTERY VOLTAGE
(11 - 14V)

331

OR

Crankshaft position sen-
sor (TDC) ground

Engine is running.

Idle speed

Approximately 0V

333

B

Needle lift sensor
ground

Ignition switch “ON”

Approximately 0V

334
335
436

B

Sensors’ ground

Engine is running.

Idle speed

Approximately 0V

TROUBLE DIAGNOSIS — General Description

CD20T

ECM Terminals and Reference Value (Cont’d)

EC-55

TER-

MINAL

NO.

WIRE

COLOR

ITEM

CONDITION

DATA

(DC Voltage and

Pulse Signal)

344

W

Crankshaft position sen-
sor (TDC) (Signal)

Engine is running. (Warm-up condition)

Idle speed

Approximately 0V

NEF867

Engine is running.

Engine speed is 2,000 rpm

Approximately 0V

NEF868

345

W

Needle lift sensor

Engine is running. (Warm-up condition)

Idle speed

Approximately 3.8 - 4.0V

NEF869

Engine is running. (Warm-up condition)

Engine speed is 2,000 rpm

Approximately 3.8 - 4.0V

NEF870

347

L/B

Engine coolant tempera-
ture sensor

Engine is running.

0.6 - 4.8V
Output voltage varies
with engine coolant tem-
perature.

348

411

R/Y

Fuel temperature sensor

Engine is running.

0.6 - 4.8V
Output voltage varies
with fuel temperature.

349

SB

Fuel cut solenoid valve

Ignition switch “LOCK”

Approximately 0V

Ignition switch “ON”

BATTERY VOLTAGE
(11 - 14V)

TROUBLE DIAGNOSIS — General Description

CD20T

ECM Terminals and Reference Value (Cont’d)

EC-56