Nissan Primera P11. Instruction — part 135
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
110
112
R
R
Power supply for ECM
[Ignition switch “ON”]
BATTERY VOLTAGE
(11 - 14V)
111
G
Sensors’ power supply
[Ignition switch “ON”]
Approximately 5V
114
G/W
Adjust switch
[Engine is running]
I
Idle speed
0V
115
BR/W
Data link connector
[Engine is running]
I
Idle speed (CONSULT-II or GST is discon-
nected)
0 - 10V
116
Refer to
EL sec-
tion
Immobilizer
[Engine is running]
I
Idle speed (GST is disconnected)
BATTERY VOLTAGE
(11 - 14V)
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
QG16
I
18DE
ECM Terminals and Reference Value (Cont’d)
EC-97
Description
NLEC1748
The specification (SP) value indicates the tolerance of the value that is displayed in “DATA MONITOR (SPEC)”
mode of CONSULT-II during normal operation of the Engine Control System. When the value in “DATA MONI-
TOR (SPEC)” mode is within the SP value, the Engine Control System is confirmed OK. When the value in
“DATA MONITOR (SPEC)” mode is NOT within the SP value, the Engine Control System may have one or
more malfunctions.
The SP value is used to detect malfunctions that may affect the Engine Control System, but will not light the
MIL.
The SP value will be displayed for the following three items:
I
B/FUEL SCHDL (The fuel injection pulse width programmed into ECM prior to any learned on board cor-
rection)
I
A/F ALPHA-B1/B2 (The mean value of air-fuel ratio feedback correction factor per cycle)
I
MAS A/F SE-B1 (The signal voltage of the mass air flow sensor)
Testing Condition
NLEC1749
I
Vehicle driven distance: More than 5,000 km (3,107 miles)
I
Barometric pressure: 98.3 - 104.3 kPa (0.983 - 1.043 bar, 1.003 - 1.064 kg/cm
2
, 14.25 - 15.12 psi)
I
Atmospheric temperature: 20 - 30°C (68 - 86°F)
I
Engine coolant temperature: 75 - 95°C (167 - 203°F)
I
Transmission: Warmed-up*1
I
Electrical load: Not applied*2
I
Engine speed: Idle
*1: For after the engine is warmed up to normal operating temperature, drive vehicle until “FLUID TEMP SE”
(CVT fluid temperature sensor signal) indicates less than 0.9V.
*2: Rear window defogger switch, air conditioner switch, lighting switch are “OFF”. Cooling fans are not oper-
ating. Steering wheel is straight ahead.
SEF601Z
Inspection Procedure
NLEC1750
NOTE:
Perform “DATA MONITOR (SPEC)” mode in maximum scale dis-
play.
1.
Perform “Basic Inspection”, EC-QG-72.
2.
Confirm that the testing conditions indicated above are met.
3.
Select “B/FUEL SCHDL”, “A/F ALPHA-B1” and “MAS A/F
SE-B1” in “DATA MONITOR (SPEC)” mode with CONSULT-II.
4.
Make sure that monitor items are within the SP value.
5.
If NG, go to “Diagnostic Procedure”, EC-QG-99.
TROUBLE DIAGNOSIS — SPECIFICATION VALUE
QG16
I
18DE
Description
EC-98
Diagnostic Procedure
NLEC1751
SEF613ZA
TROUBLE DIAGNOSIS — SPECIFICATION VALUE
QG16
I
18DE
Diagnostic Procedure
EC-99
SEF768Z
TROUBLE DIAGNOSIS — SPECIFICATION VALUE
QG16
I
18DE
Diagnostic Procedure (Cont’d)
EC-100
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