2004 NISSAN TERRANO Service Repair Manual

ECM HARNESS CONNECTOR TERMINAL LAYOUT
ECM INSPECTION TABLE
Remarks: 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 damage 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)
2LG Intake air control valve
control solenoid valve Engine is running.
BATTERY VOLTAGE
(11 - 14V)
Ignition switch ªOFFº
For a few seconds after turning ignition
switch ªOFFº Approximately 0.1V
4 G ECM relay (Self-shutoff) Ignition switch ªONº
Ignition switch ªOFFº
For a few seconds after turning ignition
switch ªOFFº
Approximately 0.25V
Ignition switch ªOFFº
More than a few seconds after turning igni-
tion switch ªOFFº BATTERY VOLTAGE
(11 - 14V)
SEF064P
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONZD30DDTi
ECM Terminals and Reference Value (Cont'd)
EC-70
http://vnx.su/

TER-
MINAL NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage and Pulse
Signal)
5 L/B Tachometer Engine is running.
Warm-up condition
Idle speed
Approximately 5.7V
SEF255Z
Engine is running.
Warm-up condition
Engine speed is 2,000 rpmApproximately 6V
SEF256Z
6 Y Engine oil lamp
Ignition switch ªONº
Approximately 0V
Engine is running.
BATTERY VOLTAGE (11 -
14V)
14 LG/R Cooling fan relay Engine is running.
Cooling fan is not operating
BATTERY VOLTAGE
(11 - 14V)
Engine is running.
Cooling fan is operating Approximately 0.1V
15 G/PU Air conditioner relay Engine is running.
Air conditioner switch is ªOFFº
BATTERY VOLTAGE
(11 - 14V)
Engine is running.
Both air conditioner switch and blower fan
switch are ªONº
(Compressor is operating) Approximately 0.1V
16 G/W Glow lamp Ignition switch ªONº
Glow lamp is ªONº
Approximately 1V
Ignition switch ªONº
Glow lamp is ªOFFº BATTERY VOLTAGE
(11 - 14V)
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONZD30DDTi
ECM Terminals and Reference Value (Cont'd)
EC-71
http://vnx.su/

TER-
MINAL NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage and Pulse
Signal)
17 G/Y Stop lamp switch Ignition switch ªONº
Brake pedal fully released
Approximately 0V
Ignition switch ªONº
Brake pedal depressed BATTERY VOLTAGE
(11 - 14V)
18 L Malfunction indicator Ignition switch ªONº
Approximately 1V
Engine is running.
Idle speed BATTERY VOLTAGE
(11 - 14V)
19 LG/W Engine coolant tempera-
ture sensor Engine is running.
Approximately 0 - 4.8V
Output voltage varies with
engine coolant temperature
20 PU Start signal Ignition switch ªONº
Approximately 0V
Ignition switch ªSTARTº
BATTERY VOLTAGE
(11 - 14V)
21 G/R Air conditioner switch Engine is running.
Air conditioner switch is ªOFFº
BATTERY VOLTAGE
(11 - 14V)
Engine is running.
Both air conditioner switch and blower fan
switch are ªONº
(Compressor is operating) Approximately 0.1V
22 BR/Y
(A/T)
G
(M/T) Park/Neutral position
switch Ignition switch ªONº
Gear position is ªNeutralº (M/T models)
Gear position is ªPº or ªNº (A/T models)
Approximately 0V
Ignition switch ªONº
Except the above gear position BATTERY VOLTAGE
(11 - 14V)
23 G Accelerator position sen-
sor Ignition switch ªONº
Accelerator pedal fully released
0.4 - 0.6V
Ignition switch ªONº
Accelerator pedal fully depressed Approximately 4.5V
24 G/Y A/T signal No. 1 Engine is running.
Warm-up condition
Idle speed Voltage goes high up once in
a few seconds
SEF448Z
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONZD30DDTi
ECM Terminals and Reference Value (Cont'd)
EC-72
http://vnx.su/

TER-
MINAL NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage and Pulse
Signal)
26 Y/B Vehicle speed sensor Engine is running.
Lift up the vehicle
In 1st gear position
Vehicle speed is 10 km/h (6 MPH)
0 - Approximately 4.8V
SEF257Z
Engine is running.
Lift up the vehicle
In 2nd gear position
Vehicle speed is 30 km/h (19 MPH)Approximately 2.2V
SEF258Z
27 R/L
Engine oil pressure
switch-2 Ignition switch ªONº
Approximately 0V
Engine is running.
BATTERY VOLTAGE (11 -
14V)
29 LG/R Accelerator switch (F/C) Ignition switch ªONº
Accelerator pedal fully released
BATTERY VOLTAGE
(11 - 14V)
Ignition switch ªONº
Accelerator pedal depressed Approximately 0V
30 LG/Y A/T signal No. 3 Engine is running.
Warm-up condition
Idle speed
Approximately 0V
Engine is running.
Warm-up condition
Engine speed is 2,000 rpm Approximately 7.7V
31 L/Y Accelerator position
switch (Idle) Ignition switch ªONº
Accelerator pedal fully released
BATTERY VOLTAGE
(11 - 14V)
Ignition switch ªONº
Accelerator pedal depressed Approximately 0V
32 R/L Accelerator position
switch (Full) Ignition switch ªONº
Accelerator pedal released
Approximately 0V
Ignition switch ªONº
Accelerator pedal fully depressed BATTERY VOLTAGE
(11 - 14V)
33 G Electronic control fuel
injection pump Engine is running.
Warm-up condition
Idle speed
Approximately 2.5V
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONZD30DDTi
ECM Terminals and Reference Value (Cont'd)
EC-73
http://vnx.su/

TER-
MINAL NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage and Pulse
Signal)
35 R Mass air flow sensor Engine is running.
Warm-up condition
Idle speed 1.6 - 2.0V
37 LG/R A/T signal No. 2 Engine is running.
Warm-up condition
Idle speed Voltage goes high up once in
a few seconds
SEF448Z
38 B/W Ignition switch
Ignition switch ªOFFº
0V
Ignition switch ªONº
BATTERY VOLTAGE
(11 - 14V)
39
43 B
B
ECM ground Engine is running.
Idle speed Approximately 0V
40 R Electronic control fuel
injection pump Engine is running.
Warm-up condition
Idle speed
Approximately 2.5V
42 OR Data link connector Engine is running.
Idle speed (CONSULT-II is connected and
turned on) Approximately 0V
64 OR/B Approximately 0V
65 OR/W Less than 9V
44 L/G Crankshaft position sen-
sor (TDC) Engine is running.
Warm-up condition
Idle speed
Approximately 0V
SEF333Y
Engine is running.
Warm-up condition
Engine speed is 2,000 rpmApproximately 0V
SEF334Y
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONZD30DDTi
ECM Terminals and Reference Value (Cont'd)
EC-74
http://vnx.su/

TER-
MINAL NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage and Pulse
Signal)
46 G Charge air pressure sen-
sor Engine is running.
Warm-up condition
Idle speed
Approximately 2.0V
47 L/R Crankshaft position sen-
sor (TDC) ground Engine is running.
Warm-up condition
Idle speed
Approximately 0V
48 R/B Accelerator position sen-
sor power supply Ignition switch ªONº
Approximately 5V
49 W Sensor's power supply Ignition switch ªONº
Approximately 5V
50 B Sensors' ground Engine is running.
Warm-up condition
Idle speed Approximately 0V
51 B/W Accelerator position sen-
sor ground Engine is running.
Warm-up condition
Idle speed
Approximately 0V
52 Y Electronic control fuel
injection pump Engine is running.
Idle speed
Approximately 0.1V
53 OR Electronic control fuel
injection pump Engine is running.
Idle speed
Approximately 1.0V
54 R Swirl control valve con-
trol solenoid valve Engine is running.
Warm-up condition
At idle speed for more than 1 second
Lift up the vehicle
Gear position is in positions other than ªPº
and ªNeutralº
Approximately 0.1V
Engine is running.
Idle speed
Lift up the vehicle
Gear position is in ªPº or ªNeutralº BATTERY VOLTAGE
(11 - 14V)
56
61
11 6 B/W
B/W
B/W
Power supply for ECM Ignition switch ªONº
BATTERY VOLTAGE
(11 - 14V)
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONZD30DDTi
ECM Terminals and Reference Value (Cont'd)
EC-75
http://vnx.su/

TER-
MINAL NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage and Pulse
Signal)
58 R/B A/T signal No. 4 Engine is running.
Warm-up condition
Idle speed Voltage goes high up once in
a few seconds
SEF448Z
59 G Heat up switch
Ignition switch ªONºHeat up switch is ªONº
Approximately 0V
Ignition switch ªONº
Heat up switch is ªOFFº BATTERY VOLTAGE
(11 - 14V)
68 Y/G Accelerator position sen-
sor signal output Ignition switch ªONº
Accelerator pedal fully released
0.4 - 0.6V
Ignition switch ªONº
Accelerator pedal fully depressed Approximately 4.5V
101 Y Variable nozzle turbo-
charger control solenoid
valve Engine is running.
Warm-up condition
Idle speed
Approximately 6.8V
SEF253Z
Engine is running.
Warm-up condition
Engine speed is 2,000 rpmApproximately 11V
SEF254Z
102 G/W Current return
Engine is running.Idle speed BATTERY VOLTAGE
(11 - 14V)
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONZD30DDTi
ECM Terminals and Reference Value (Cont'd)
EC-76
http://vnx.su/

TER-
MINAL NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage and Pulse
Signal)
103 R/Y (LHD
mod-
els)
L/R
(RHD
mod-
els) EGR volume control
valve
Engine is running.
Warm-up condition
Idle speed
0.1 - 14V
105
109 11 5 G/Y
Y/B
R/L
106 11 2
11 8 B
B
B
ECM ground
Engine is running.
Idle speed Approximately 0V
111 LG Glow relay Refer to ªGLOW CONTROL SYSTEMº, EC-244.
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONZD30DDTi
ECM Terminals and Reference Value (Cont'd)
EC-77
http://vnx.su/