2006 NISSAN VERSA ignition

EC-96Revision: June 2006
TROUBLE DIAGNOSIS
2007 Versa
Engine Control Component Parts LocationUBS00PKI
1. Ignition coil (with power transistor)
and spark plug2. Intake valve timing control solenoid
valve3. Refrigerant pressure sensor
4. Knock sensor 5. Fuel injector 6. Cooling fan motor
7. Camshaft position sensor (PHASE) 8. IPDM E/R 9. ECM
10. Mass air flow sensor
(with intake air temperature sensor)11. Engine coolant temperature sensor 12. Electric throttle control actuator
(with built-in throttle position sensor,
throttle control motor)
13. EVAP canister purge volume control
solenoid valve
PBIB3261E

EC-98Revision: June 2006
TROUBLE DIAGNOSIS
2007 Versa
: Vehicle front
1. Intake valve timing control solenoid
valve2. Knock sensor 3. IPDM E/R
4. Fuel pump fuse (15A) 5. Fuel level sensor unit and fuel pump
harness connector (view with
inspection hole cover removed)6. Fuel level sensor unit and fuel pump
7. Fuel pressure regulator 8. Fuel level sensor 9. Fuel tank temperature sensor
10. Ignition coil
(with power transistor) and spark plug11. Fuel injector
BBIA0725E

TROUBLE DIAGNOSIS
EC-105
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Revision: June 20062007 Versa
ECM Harness Connector Terminal LayoutUBS00PKL
ECM Terminals and Reference ValueUBS00PKM
PREPARATION
1. ECM (1) is located in the engine room left side near battery.

: Vehicle front
2. Disconnect ECM harness connector.

When disconnecting ECM harness connector, loosen (A) it
with levers (1) as far as they will go as shown in the figure.
–ECM (2)
–Fasten (B)
3. 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 ECMs transistor. Use a ground other than ECM terminals, such as the ground.
PBIA9221J
PBIB2959E
PBIB2947E
TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
1LThrottle control motor
(Open)[Ignition switch: ON]

Engine stopped

Shift lever: D (A/T, CVT), 1st (M/T)

Accelerator pedal: Fully depressedApproximately 3.2V
2SBThrottle control motor power
supply[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
PBIA8150J

EC-106Revision: June 2006
TROUBLE DIAGNOSIS
2007 Versa
3 G A/F sensor 1 heater[Engine is running]

Warm-up condition

Idle speed
(More than 140 seconds after starting
engine)Approximately 2.9 - 8.8V
4PThrottle control motor
(Close)[Ignition switch: ON]

Engine stopped

Shift lever: D (A/T, CVT), 1st (M/T)

Accelerator pedal: Fully releasedApproximately 1.8V
5GHeated oxygen sensor 2
heater[Engine is running]

Engine speed: Below 3,600 rpm after the
following conditions are met.
–Engine: After warming up
–Keeping the engine speed between 3,500
and 4,000 rpm for 1 minute and at idle for 1
minute under no load.Approximately 10V
[Ignition switch: ON]

Engine stopped
[Engine is running]

Engine speed: Above 3,600 rpm.BATTERY VOLTAGE
(11 - 14V)
9PEVAP canister purge vol-
ume control solenoid valve[Engine is running]

Idle speed

Accelerator pedal: Not depressed even
slightly, after engine starting.BATTERY VOLTAGE
(11 - 14V)
[Engine is running]

Engine speed: About 2,000 rpm (More than
100 seconds after starting engine)Approximately 10V
10
11B
BECM ground[Engine is running]

Idle speedBody ground TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
PBIA8148J
PBIA8149J
PBIA8148J
PBIB0050E
PBIB0520E

TROUBLE DIAGNOSIS
EC-107
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Revision: June 20062007 Versa
13 L Tachometer signal[Engine is running]

Warm-up condition

Idle speed
NOTE:
The pulse cycle changes depending on rpm
at idle.3 - 5V
[Engine is running]

Warm-up condition

Engine speed: 2,000 rpm.3 - 5V
15 Y Throttle control motor relay[Ignition switch: OFF]BATTERY VOLTAGE
(11 - 14V)
[Ignition switch: ON]0 - 1.0V
17
18
21
22R
LG
G
SBIgnition signal No. 1
Ignition signal No. 2
Ignition signal No. 4
Ignition signal No. 3[Engine is running]

Warm-up condition

Idle speed
NOTE:
The pulse cycle changes depending on rpm
at idle.0 - 0.3V
[Engine is running]

Warm-up condition

Engine speed: 2,500 rpm.0.2 - 0.5V
23 GR Fuel pump relay[Ignition switch: ON]

For 1 second after turning ignition switch
ON
[Engine is running]0 - 1.0V
[Ignition switch: ON]

More than 1 second after turning ignition
switch ONBATTERY VOLTAGE
(11 - 14V) TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
PBIA8164J
PBIA8165J
PBIA9265J
PBIA9266J

EC-108Revision: June 2006
TROUBLE DIAGNOSIS
2007 Versa
25
29
30
31V
Y
O
LFuel injector No. 4
Fuel injector No. 3
Fuel injector No. 2
Fuel injector No. 1[Engine is running]

Warm-up condition

Idle speed
NOTE:
The pulse cycle changes depending on rpm
at idle.BATTERY VOLTAGE
(11 - 14V)
[Engine is running]

Warm-up condition

Engine speed: 2,000 rpmBATTERY VOLTAGE
(11 - 14V)
28 WEVAP canister vent control
valve[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
32 PECM relay
(Self shut-off)[Engine is running]
[Ignition switch: OFF]

For a few seconds after turning ignition
switch OFF0 - 1.0V
[Ignition switch: OFF]

More than a few seconds after turning igni-
tion switch OFFBATTERY VOLTAGE
(11 - 14V)
33 LG Throttle position sensor 1[Ignition switch: ON]

Engine stopped

Shift lever: D (A/T, CVT), 1st (M/T)

Accelerator pedal: Fully releasedMore than 0.36V
[Ignition switch: ON]

Engine stopped

Shift lever: D (A/T, CVT), 1st (M/T)

Accelerator pedal: Fully depressedLess than 4.75V
34 O Throttle position sensor 2[Ignition switch: ON]

Engine stopped

Shift lever: D (A/T, CVT), 1st (M/T)

Accelerator pedal: Fully releasedLess than 4.75V
[Ignition switch: ON]

Engine stopped

Shift lever: D (A/T, CVT), 1st (M/T)

Accelerator pedal: Fully depressedMore than 0.36V
36 YSensor ground
(Throttle position sensor)[Engine is running]

Warm-up condition

Idle speedApproximately 0V
37 W Knock sensor[Engine is running]

Idle speedApproximately 2.5V
38 PEngine coolant temperature
sensor[Engine is running]Approximately 0 - 4.8V
Output voltage varies with
engine coolant temperature. TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
PBIB0529E
PBIA4943J

TROUBLE DIAGNOSIS
EC-109
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EC
Revision: June 20062007 Versa40 —Sensor ground
(Knock sensor)[Engine is running]
Warm-up condition

Idle speedApproximately 0V
41 GR Refrigerant pressure sensor[Engine is running]

Warm-up condition

Both A/C switch and blower fan switch: ON
(Compressor operates.)1.0 - 4.0V
42 VEVAP control system pres-
sure sensor[Ignition switch: ON]Approximately 1.8 - 4.8V
43 PFuel tank temperature sen-
sor[Engine is running]Approximately 0 - 4.8V
Output voltage varies with fuel
tank temperature
44 BSensor ground
(Engine coolant temperature
sensor)[Engine is running]

Warm-up condition

Idle speedApproximately 0V
45 G Mass air flow sensor[Engine is running]

Warm-up condition

Idle speed0.8 - 1.1V
[Engine is running]

Warm-up condition

Engine speed: 2,500 rpm1.4 - 1.7V
46 VIntake air temperature
sensor[Engine is running]Approximately 0 - 4.8V
Output voltage varies with intake
air temperature.
48 BRSensor ground
(Refrigerant pressure sen-
sor)[Engine is running]

Warm-up condition

Idle speedApproximately 0V
49 W A/F sensor 1[Engine is running]

Warm-up condition

Engine speed: 2,000 rpmApproximately 1.8V
Output voltage varies with air
fuel ratio.
50 W Heated oxygen sensor 2[Engine is running]

Revving engine from idle to 3,000 rpm
quickly after the following conditions are
met.
–Engine: After warming up
–Keeping the engine speed between 3,500
and 4,000 rpm for 1 minute and at idle for 1
minute under no load.0 - Approximately 1.0V
51 OSensor ground
(EVAP control system pres-
sure sensor)[Engine is running]

Warm-up condition

Idle speedApproximately 0V
52 LGSensor ground
(Mass air flow sensor)[Engine is running]

Warm-up condition

Idle speedApproximately 0V
53 B A/F sensor 1[Ignition switch: ON]Approximately 2.2V
55 OSensor ground
(Intake air temperature sen-
sor)[Engine is running]

Warm-up condition

Idle speedApproximately 0V TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)

EC-110Revision: June 2006
TROUBLE DIAGNOSIS
2007 Versa
59 OSensor ground
(Heated oxygen sensor 2)[Engine is running]
Warm-up condition

Idle speedApproximately 0V
61 WCrankshaft position sensor
(POS)[Engine is running]

Warm-up condition

Idle speed
NOTE:
The pulse cycle changes depending on rpm
at idle.Approximately 4.0V
[Engine is running]

Engine speed: 2,000 rpmApproximately 4.0V
62 RSensor ground
[Crankshaft position sensor
(POS)][Engine is running]

Warm-up condition

Idle speedApproximately 0V
63 BRSensor ground
[Camshaft position sensor
(PHASE)][Engine is running]

Warm-up condition

Idle speedApproximately 0V
65 GCamshaft position sensor
(PHASE)[Engine is running]

Warm-up condition

Idle speed
NOTE:
The pulse cycle changes depending on rpm
at idle.1.0 - 2.0V
[Engine is running]

Engine speed: 2,000 rpm.1.0 - 2.0V
69 LPark/neutral position (PNP)
switch[Ignition switch: ON]

Shift lever: P or N (A/T, CVT), Neutral (M/T)BATTERY VOLTAGE
(11 - 14V)
[Ignition switch: ON]

Except aboveApproximately 0V
72 VSensor power supply
(Throttle position sensor)[Ignition switch: ON]Approximately 5V TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
PBIB2998E
PBIB2999E
PBIB2986E
PBIB2987E