Nissan Almera Tino V10 (2001 year). Manual — part 91

Wiring Diagram

NLEC1853

TYPE-1

NLEC1853S01

YEC760

PARK/NEUTRAL POSITION (PNP) SWITCH

SR20DE

Wiring Diagram

EC-1017

TYPE-2

NLEC1853S02

YEC939

PARK/NEUTRAL POSITION (PNP) SWITCH

SR20DE

Wiring Diagram (Cont’d)

EC-1018

Diagnostic Procedure

NLEC1854

1

INSPECTION START

Do you have CONSULT-II?

Yes or No

Yes

©

GO TO 2.

No

©

GO TO 3.

2

CHECK OVERALL FUNCTION

With CONSULT-II

1. Turn ignition switch “ON”.
2. Select “P/N POSI SW” in “DATA MONITOR” mode with CONSULT-II.
3. Check the “P/N POSI SW” signal under the following conditions.

SEF028Y

OK or NG

OK

©

INSPECTION END

NG

©

GO TO 4.

3

CHECK OVERALL FUNCTION

Without CONSULT-II

1. Turn ignition switch “ON”.
2. Check voltage between ECM terminal 42 and ground under the following conditions.

SEF811Z

OK or NG

OK

©

INSPECTION END

NG

©

GO TO 4.

PARK/NEUTRAL POSITION (PNP) SWITCH

SR20DE

Diagnostic Procedure

EC-1019

4 CHECK GROUND CIRCUIT

1. Turn ignition switch “OFF”.
2. Disconnect PNP switch harness connector.

SEF781Z

3. Check harness continuity between PNP switch harness connector terminal 2 and body ground.

Refer to wiring diagram.

Continuity should exist.

4. Also check harness for short to power.

OK or NG

OK

©

GO TO 6.

NG

©

GO TO 5.

5 DETECT MALFUNCTIONING PART

Check the harness for open or short between PNP switch and body ground.

©

Repair open circuit or short to power in harness or connectors.

6 CHECK INPUT SIGNAL CIRCUIT

1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 42 and PNP switch terminal 1.

Refer to wiring diagram.

Continuity should exist.

3. Also check harness for short to ground and short to power.

OK or NG

OK

©

GO TO 8.

NG

©

GO TO 7.

7 DETECT MALFUNCTIONING PART

Check the harness for open or short between ECM and PNP switch.

©

Repair open circuit or short to ground or short to power in harness or connectors.

8 CHECK PNP SWITCH

Refer to AT-66, “PARK/NEUTRAL POSITION (PNP) SWITCH”.

OK or NG

OK

©

GO TO 9.

NG

©

Replace PNP switch.

9 CHECK INTERMITTENT INCIDENT

Perform “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-670.

©

INSPECTION END

PARK/NEUTRAL POSITION (PNP) SWITCH

SR20DE

Diagnostic Procedure (Cont’d)

EC-1020

SEF138X

Component Description

NLEC1855

The fuel injector is a small, precise solenoid valve. When the ECM
supplies a ground to the injector circuit, the coil in the injector is
energized. The energized coil pulls the needle valve back and
allows fuel to flow through the injector into the intake manifold. The
amount of fuel injected depends upon the injection pulse duration.
Pulse duration is the length of time the injector remains open. The
ECM controls the injection pulse duration based on engine fuel
needs.

CONSULT-II Reference Value in Data Monitor
Mode

NLEC1856

MONITOR ITEM

CONDITION

SPECIFICATION

INJ PULSE-B1

+

Engine: After warming up

+

Air conditioner switch: OFF

+

Shift lever: “N”

+

No-load

Idle

2.4 - 3.2 msec

2,000 rpm

1.9 - 2.8 msec

B/FUEL SCHDL

+

Engine: After warming up

+

Air conditioner switch: OFF

+

Shift lever: “N”

+

No-load

Idle

2.4 - 3.2 msec

2,000 rpm

1.4 - 2.8 msec

ECM Terminals and Reference Value

NLEC1857

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 dam-
age to the ECM’s transistor. Use a ground other than ECM terminals, such as the ground.

TERMI-

NAL

NO.

WIRE

COLOR

ITEM

CONDITION

DATA (DC Voltage)

101
103
105
107

R/B
Y/B
G/B
L/B

Injector No. 1
Injector No. 2
Injector No. 3
Injector No. 4

[Engine is running]

+

Warm-up condition

+

Idle speed

BATTERY VOLTAGE
(11 - 14V)

SEF011W

[Engine is running]

+

Warm-up condition

+

Engine speed is 2,000 rpm

BATTERY VOLTAGE
(11 - 14V)

SEF012W

INJECTOR

SR20DE

Component Description

EC-1021

Wiring Diagram

NLEC1858

MODELS WITH ECM IN ENGINE COMPARTMENT

NLEC1858S01

YEC711

INJECTOR

SR20DE

Wiring Diagram

EC-1022

MODELS WITH ECM IN CABIN

NLEC1858S02

YEC940

INJECTOR

SR20DE

Wiring Diagram (Cont’d)

EC-1023

Diagnostic Procedure

NLEC1859

1

CHECK OVERALL FUNCTION

With CONSULT-II

1. Start engine.
2. Perform “POWER BALANCE” in “ACTIVE TEST” mode with CONSULT-II.

SEF190Y

3. Make sure that each circuit produces a momentary engine speed drop.

Without CONSULT-II

1. Start engine.
2. Listen to each injector operating sound.

MEC703B

Clicking noise should be heard.

OK or NG

OK

©

INSPECTION END

NG

©

GO TO 2.

INJECTOR

SR20DE

Diagnostic Procedure

EC-1024

2

CHECK POWER SUPPLY

1. Stop engine.
2. Disconnect injector harness connector.
3. Turn ignition switch “ON”.
4. Check voltage between terminal 2 and ground with CONSULT-II or tester.

SEF986W

Voltage: Battery voltage

OK or NG

OK

©

GO TO 4.

NG

©

GO TO 3.

3

DETECT MALFUNCTIONING PART

Check the following.

+

10A fuse

+

Harness connectors F38, M50 (where fitted)

+

Harness connectors M72, F44 (where fitted)

+

Harness connectors F13, F60

+

Harness for open or short between injector and fuse

©

Repair harness or connectors.

4

CHECK OUTPUT SIGNAL CIRCUIT

1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector.
3. Check harness continuity between injector harness connector terminal 1 and ECM terminals 101, 103, 105, 107.

Refer to wiring diagram.

Continuity should exist.

4. Also check harness for short to ground and short to power.

OK or NG

OK

©

GO TO 6.

NG

©

GO TO 5.

5

DETECT MALFUNCTIONING PART

Check the following.

+

Harness connectors F60, F13

+

Harness for open or short between ECM and injector.

©

Repair open circuit or short to ground or short to power in harness or connectors.

INJECTOR

SR20DE

Diagnostic Procedure (Cont’d)

EC-1025

6

CHECK INJECTOR

Refer to “Component Inspection”, EC-1026.

OK or NG

OK

©

GO TO 7.

NG

©

Replace injector.

7

CHECK INTERMITTENT INCIDENT

Perform “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-670.

©

INSPECTION END

SEF612Y

Component Inspection

NLEC1860

INJECTOR

NLEC1860S01

1.

Disconnect injector harness connector.

2.

Check resistance between terminals as shown in the figure.

Resistance: 13.1 - 16.0

Ω

[at 25°C (77°F)]

If NG, replace injector.

INJECTOR

SR20DE

Diagnostic Procedure (Cont’d)

EC-1026

CONSULT-II Reference Value in Data Monitor
Mode

NLEC1861

Specification data are reference values.

MONITOR ITEM

CONDITION

SPECIFICATION

START SIGNAL

+

Ignition switch: ON

→

START

→

ON

OFF

→

ON

→

OFF

ECM Terminals and Reference Value

NLEC1862

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 dam-
age to the ECM’s transistor. Use a ground other than ECM terminals, such as the ground.

TERMI-

NAL

NO.

WIRE

COLOR

ITEM

CONDITION

DATA (DC Voltage)

41

B/Y

Start signal

[Ignition switch “ON”]

Approximately 0V

[Ignition switch “START”]

9 - 12V

START SIGNAL

SR20DE

CONSULT-II Reference Value in Data Monitor Mode

EC-1027

Wiring Diagram

NLEC1863

MODELS WITH ECM IN ENGINE COMPARTMENT

NLEC1863S01

YEC713

START SIGNAL

SR20DE

Wiring Diagram

EC-1028

MODELS WITH ECM IN CABIN

NLEC1863S02

YEC941

START SIGNAL

SR20DE

Wiring Diagram (Cont’d)

EC-1029

Diagnostic Procedure

=NLEC1864

1

INSPECTION START

Do you have CONSULT-II?

Yes or No

Yes

©

GO TO 2.

No

©

GO TO 3.

2

CHECK OVERALL FUNCTION

With CONSULT-II

1. Turn ignition switch “ON”.
2. Check “START SIGNAL” in “DATA MONITOR” mode with CONSULT-II under the following conditions.

SEF227Y

OK or NG

OK

©

INSPECTION END

NG

©

GO TO 4.

3

CHECK OVERALL FUNCTION

Without CONSULT-II

1. Turn ignition switch to “START”.
2. Check voltage between ECM terminal 41 and ground under the following conditions.

SEF613Y

OK or NG

OK

©

INSPECTION END

NG

©

GO TO 4.

START SIGNAL

SR20DE

Diagnostic Procedure

EC-1030

4

DETECT MALFUNCTIONING PART

Check the following.

+

Harness connectors M49, F43 (where fitted)

+

Harness connectors M71, F45 (where fitted)

+

10A fuse

+

Harness for open or short between ECM and ignition switch

OK or NG

OK

©

GO TO 5.

NG

©

Repair open circuit or short to ground or short to power in harness or connectors.

5

CHECK INTERMITTENT INCIDENT

Perform “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-670.

©

INSPECTION END

START SIGNAL

SR20DE

Diagnostic Procedure (Cont’d)

EC-1031

System Description

NLEC1865

Sensor

Input Signal to ECM

ECM func-

tion

Actuator

Camshaft position sensor

Engine speed

Fuel pump
control

Fuel pump relay

Ignition switch

Ignition signal and start signal

The ECM activates the fuel pump for several seconds after the ignition switch is turned on to improve engine
startability. If the ECM receives a 180° signal from the camshaft position sensor, it knows that the engine is
rotating, and causes the pump to perform. If the 180° signal is not received when the ignition switch is on, the
engine stalls. The ECM stops pump operation and prevents battery discharging, thereby improving safety. The
ECM does not directly drive the fuel pump. It controls the ON/OFF fuel pump relay, which in turn controls the
fuel pump.

Condition

Fuel pump operation

Ignition switch is turned to ON.

Operates for 1 second

Engine running and cranking

Operates

When engine is stopped (Signal is not sent from crankshaft position sensor
and camshaft position sensor.)

Stops in 1.5 seconds

Except as shown above

Stops

SEF605X

Component Description

NLEC1866

A turbine type design fuel pump is used in the fuel tank.

CONSULT-II Reference Value in Data Monitor
Mode

NLEC1867

MONITOR ITEM

CONDITION

SPECIFICATION

FUEL PUMP RLY

+

Ignition switch is turned to ON (Operates for 1 second)

+

Engine running and cranking

+

When engine is stopped (stops in 1.5 seconds)

ON

+

Except as shown above

OFF

FUEL PUMP

SR20DE

System Description

EC-1032