Page 785 of 3189
TROUBLE DIAGNOSIS
EC-455
[QG (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
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K
L
MA
EC
MBIB0261E
Page 786 of 3189
EC-456
[QG (WITHOUT EURO-OBD)]
TROUBLE DIAGNOSIS
Circuit Diagram
EBS00KEX
YEC274A
Page 787 of 3189
TROUBLE DIAGNOSIS
EC-457
[QG (WITHOUT EURO-OBD)]
C
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YEC275A
Page 788 of 3189
![NISSAN ALMERA N16 2003 Electronic Repair Manual EC-458
[QG (WITHOUT EURO-OBD)]
TROUBLE DIAGNOSIS
ECM Harness Connector Terminal Layout
EBS00KEY
ECM Terminals and Reference ValueEBS00KEZ
PREPARATION
1. ECM is located behind the glove box. For NISSAN ALMERA N16 2003 Electronic Repair Manual EC-458
[QG (WITHOUT EURO-OBD)]
TROUBLE DIAGNOSIS
ECM Harness Connector Terminal Layout
EBS00KEY
ECM Terminals and Reference ValueEBS00KEZ
PREPARATION
1. ECM is located behind the glove box. For](/manual-img/5/57350/w960_57350-787.png)
EC-458
[QG (WITHOUT EURO-OBD)]
TROUBLE DIAGNOSIS
ECM Harness Connector Terminal Layout
EBS00KEY
ECM Terminals and Reference ValueEBS00KEZ
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 at right.
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
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
MBIB0258E
MBIB0145E
TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
1 B ECM ground[Engine is running]
●Idle speedEngine ground
Page 789 of 3189
![NISSAN ALMERA N16 2003 Electronic Repair Manual TROUBLE DIAGNOSIS
EC-459
[QG (WITHOUT EURO-OBD)]
C
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2R/BHeated oxygen sensor 2
heater[Engine is running]
●Warm-up condition
●Engine speed: Below 3,800 rpm after the
follow NISSAN ALMERA N16 2003 Electronic Repair Manual TROUBLE DIAGNOSIS
EC-459
[QG (WITHOUT EURO-OBD)]
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2R/BHeated oxygen sensor 2
heater[Engine is running]
●Warm-up condition
●Engine speed: Below 3,800 rpm after the
follow](/manual-img/5/57350/w960_57350-788.png)
TROUBLE DIAGNOSIS
EC-459
[QG (WITHOUT EURO-OBD)]
C
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2R/BHeated oxygen sensor 2
heater[Engine is running]
●Warm-up condition
●Engine speed: Below 3,800 rpm after the
following conditions are met.
●Keeping the engine speed between 3,500
and 4,000 rpm for one minute and at idle
for one minute under no load.0 - 1.0V
[Ignition switch “ON”]
●Engine stopped.
[Engine is running]
●Engine speed is above 3,800 rpm.BATTERY VOLTAGE
(11 - 14V)
3RThrottle control motor power
supply[Ignition switch “ON”]BATTERY VOLTAGE
(11 - 14V)
4W
(LHD)
BR
(RHD)Throttle control motor
(Close)[Ignition switch “ON”]
●Engine stopped.
●Shift lever position is ″D″ (A/T models).
●Shift lever position is “1st” (M/T models).
●Accelerator pedal is releasing.0 - 14V
5B (LHD)
Y (RHD)Throttle control motor
(Open)[Ignition switch “ON”]
●Engine stopped.
●Shift lever position is ″D″ (A/T models).
●Shift lever position is “1st” (M/T models).
●Accelerator pedal is depressing.0 - 14V
12 LPower steering pressure
sensor[Engine is running]
●Steering wheel is being turned.0.5 - 4.0V
[Engine is running]
●Steering wheel is not being turned.0.4 - 0.8V
13 RCrankshaft position sensor
(POS)[Engine is running]
●Warm-up condition
●Idle speedApproximately 3.0V
[Engine is running]
●Engine speed is 2,000 rpm.Approximately 3.0V TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
PBIB0534E
PBIB0533E
PBIB0527E
PBIB0528E
Page 790 of 3189
EC-460
[QG (WITHOUT EURO-OBD)]
TROUBLE DIAGNOSIS
14 RCamshaft position sensor
(PHASE)[Engine is running]
●Warm-up condition
●Idle speed1.0 - 4.0V
[Engine is running]
●Engine speed is 2,000 rpm.1.0 - 4.0V
15 W Knock sensor[Engine is running]
●Idle speedApproximately 2.5V
16 W Heated oxygen sensor 2[Engine is running]
●Warm-up condition
●Engine speed is 3,000 rpm quickly after the
following conditions are met.
●Keeping the engine speed between 3,500
and 4,000 rpm for one minute and at idle
for one minute under no load.0 - Approximately 1.0V
19 GY/LEVAP canister purge
volume control solenoid
valve[Engine is running]
●Idle speedBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
●Engine speed is about 2,000 rpm (More
than 100 seconds after starting engine).Approximately 10V TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
PBIB0525E
PBIB0526E
PBIB0050E
PBIB0520E
Page 791 of 3189
![NISSAN ALMERA N16 2003 Electronic Repair Manual TROUBLE DIAGNOSIS
EC-461
[QG (WITHOUT EURO-OBD)]
C
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22
23
41
42G/B
R/B
L/B
Y/BInjector No. 3
Injector No. 1
Injector No. 4
Injector No. 2[Engine is running]
●Warm-up condition NISSAN ALMERA N16 2003 Electronic Repair Manual TROUBLE DIAGNOSIS
EC-461
[QG (WITHOUT EURO-OBD)]
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22
23
41
42G/B
R/B
L/B
Y/BInjector No. 3
Injector No. 1
Injector No. 4
Injector No. 2[Engine is running]
●Warm-up condition](/manual-img/5/57350/w960_57350-790.png)
TROUBLE DIAGNOSIS
EC-461
[QG (WITHOUT EURO-OBD)]
C
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22
23
41
42G/B
R/B
L/B
Y/BInjector No. 3
Injector No. 1
Injector No. 4
Injector No. 2[Engine is running]
●Warm-up condition
●Idle speedBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
●Warm-up condition
●Engine speed is 2,000 rpm.BATTERY VOLTAGE
(11 - 14V)
24 GHeated oxygen sensor 1
heater[Engine is running]
●Warm-up condition
●Engine speed is below 3,200 rpm (A/T
models).
●Engine speed is below 3,600 rpm (M/T
models).Approximately 7.0V
[Ignition switch “ON”]
●Engine stopped.
[Engine is running]
●Engine speed is above 3,200 rpm (A/T
models).
●Engine speed is above 3,600 rpm (M/T
models).BATTERY VOLTAGE
(11 - 14V)
29 BCamshaft position sensor
(PHASE) ground[Engine is running]
●Idle speedApproximately 0V
30 BCrankshaft position sensor
(POS) ground[Engine is running]
●Idle speedApproximately 0V
34 BRIntake air temperature
sensor[Engine is running]Approximately 0 - 4.8V
Output voltage varies with
intake air temperature.
35 W Heated oxygen sensor 1[Engine is running]
●Warm-up condition
●Engine speed is 2,000 rpm.0 - Approximately 1.0V
(Periodically change)
45 RSensor power supply
(Mass air flow sensor)[Ignition switch “ON”]Approximately 5V
46 RSensor power supply
(Refrigerant pressure
sensor)[Ignition switch “ON”]Approximately 5V
47 GSensor power supply
(Throttle position sensor)[Ignition switch “ON”]Approximately 5V TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
PBIB0529E
PBIB0530E
PBIB0519E
Page 792 of 3189
![NISSAN ALMERA N16 2003 Electronic Repair Manual EC-462
[QG (WITHOUT EURO-OBD)]
TROUBLE DIAGNOSIS
49 W Throttle position sensor 1[Ignition switch “ON”]
●Engine stopped.
●Shift lever position is ″D″ (A/T models).
●Shift lever position i NISSAN ALMERA N16 2003 Electronic Repair Manual EC-462
[QG (WITHOUT EURO-OBD)]
TROUBLE DIAGNOSIS
49 W Throttle position sensor 1[Ignition switch “ON”]
●Engine stopped.
●Shift lever position is ″D″ (A/T models).
●Shift lever position i](/manual-img/5/57350/w960_57350-791.png)
EC-462
[QG (WITHOUT EURO-OBD)]
TROUBLE DIAGNOSIS
49 W Throttle position sensor 1[Ignition switch “ON”]
●Engine stopped.
●Shift lever position is ″D″ (A/T models).
●Shift lever position is “1st” (M/T models).
●Accelerator pedal fully released.More than 0.36V
[Ignition switch “ON”]
●Engine stopped.
●Shift lever position is ″D″ (A/T models).
●Shift lever position is “1st” (M/T models).
●Accelerator pedal fully depressed.Less than 4.75V
50 Y Mass air flow sensor[Engine is running]
●Warm-up condition
●Idle speed1.0 - 1.7V
[Engine is running]
●Warm-up condition
●Engine speed is 2,500 rpm.1.5 - 2.1V
54 -Sensor ground
(Knock sensor shield circuit)[Engine is running]
●Idle speedApproximately 0V
57 BSensor ground
(Power steering pressure
sensor/Refrigerant pressure
sensor)[Engine is running]
●Warm-up condition
●Idle speedApproximately 0V
60
61
79
80L/R
BR
GY/R
PUIgnition signal No. 3
Ignition signal No. 1
Ignition signal No. 4
Ignition signal No. 2[Engine is running]
●Warm-up condition
●Idle speed0 - 0.1V
[Engine is running]
●Warm-up condition
●Engine speed is 2,000 rpm.0 - 0.2V TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
PBIB0521E
PBIB0522E