Nissan Almera Tino V10 (2001 year). Manual — part 59

Diagnostic Procedure

NLEC0579

1

CHECK ENGINE START

Turn ignition switch “OFF”, and restart engine.
Is engine running?

Yes or No

Yes (With CONSULT-II)

©

GO TO 2.

Yes (Without CONSULT-
II)

©

GO TO 12.

No

©

GO TO 3.

2

SEARCH FOR MALFUNCTIONING CIRCUIT

With CONSULT-II

1. Perform “POWER BALANCE” in “ACTIVE TEST” mode with CONSULT-II.
2. Search for circuit which does not produce a momentary engine speed drop.

SEF190Y

©

GO TO 12.

3

CHECK IGNITION COIL POWER SUPPLY CIRCUIT-I

1. Turn ignition switch ON.
2. Check voltage between ECM terminals 110, 112 and ground with CONSULT-II or tester.

SEF366X

OK or NG

OK

©

GO TO 4.

NG

©

GO TO TROUBLE DIAGNOSIS FOR POWER SUPPLY, EC-146.

IGNITION SIGNAL

QG18DE

Diagnostic Procedure

EC-505

4

CHECK IGNITION COIL POWER SUPPLY CIRCUIT-II

1. Turn ignition switch OFF.
2. Disconnect condenser harness connector.

SEF635Z

3. Turn ignition switch ON.
4. Check voltage between condenser terminal 1 and ground with CONSULT-II or tester.

SEF367X

OK or NG

OK

©

GO TO 10.

NG

©

GO TO 5.

5

CHECK IGNITION COIL POWER SUPPLY CIRCUIT-III

1. Turn ignition switch OFF.
2. Disconnect ECM relay. (For ECM relay location, refer to “Engine Control Compartment Parts Location”.)
3. Check harness continuity between ECM relay terminal 7 and condenser terminal 1. 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 7.

NG

©

GO TO 6.

6

DETECT MALFUNCTIONING PART

Check the harness for open or short between ECM relay and condenser.

©

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

IGNITION SIGNAL

QG18DE

Diagnostic Procedure (Cont’d)

EC-506

7

CHECK IGNITION COIL POWER SUPPLY CIRCUIT-IV

Check voltage between ECM relay terminal 6 and ground with CONSULT-II or tester.

SEF368X

OK or NG

OK

©

GO TO 9.

NG

©

GO TO 8.

8

DETECT MALFUNCTIONING PART

Check the following.

+

15A fuse

+

Harness connectors E76, F36

+

Harness connectors M72, F44 (where fitted)

+

Harness connectors M11, E106 (LHD models) (where fitted)

+

Harness connectors M78, E120 (RHD models) (where fitted)

+

Joint connector F46 (where fitted)

+

Harness for open and short between ECM relay and fuse

©

Repair or replace harness or connectors.

9

CHECK ECM RELAY

Refer to “Component Inspection”, EC-509.

OK or NG

OK

©

GO TO 17.

NG

©

Replace ECM relay.

10

CHECK CONDENSER GROUND CIRCUIT

1. Turn ignition switch OFF.
2. Check harness continuity between condenser terminal 2 and engine ground. Refer to Wiring Diagram.

Continuity should exist.

3. Also check harness for short to power.

OK or NG

OK

©

GO TO 11.

NG

©

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

11

CHECK CONDENSER

Refer to “Component Inspection”, EC-509.

OK or NG

OK

©

GO TO 12.

NG

©

Replace condenser.

IGNITION SIGNAL

QG18DE

Diagnostic Procedure (Cont’d)

EC-507

12

CHECK IGNITION COIL POWER SUPPLY CIRCUIT-V

1. Turn ignition switch OFF.
2. Reconnect harness connectors disconnected.
3. Disconnect ignition coil harness connector.

JEF119Y

4. Turn ignition switch ON.
5. Check voltage between ignition coil terminal 1 and ground with CONSULT-II or tester.

SEF122Y

OK or NG

OK

©

GO TO 14.

NG

©

GO TO 13.

13

DETECT MALFUNCTIONING PART

Check the harness for open or short between ignition coil and ECM relay terminal 7.

©

Repair or replace harness or connectors.

14

CHECK IGNITION COIL GROUND CIRCUIT

1. Turn ignition switch OFF.
2. Check harness continuity between ignition coil terminal 2 and engine ground. Refer to Wiring Diagram.

Continuity should exist.

3. Also check harness for short to power.

OK or NG

OK

©

GO TO 15.

NG

©

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

IGNITION SIGNAL

QG18DE

Diagnostic Procedure (Cont’d)

EC-508

15

CHECK IGNITION COIL OUTPUT SIGNAL CIRCUIT

1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminals 35, 36, 37, 38 and ignition coil terminal 3. 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 16.

NG

©

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

16

CHECK IGNITION COIL WITH POWER TRANSISTOR

Refer to “Component Inspection”, EC-509.

OK or NG

OK

©

GO TO 17.

NG

©

Replace ignition coil with power transistor.

17

CHECK INTERMITTENT INCIDENT

Refer to “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-145.

©

INSPECTION END

SEF371Q

Component Inspection

NLEC0547

IGNITION COIL WITH POWER TRANSISTOR

NLEC0547S01

1.

Disconnect ignition coil with power transistor harness connec-
tor.

2.

Check ignition coil with power transistor for resistance as show
in the figure.

Terminal No. (Polarity)

Resistance

Ω

[at 25°C (77°F)]

3 (+) - 2 (−)

Except 0 or

∞

1 (+) - 3 (−)

Except 0

1 (+) - 2 (−)

If NG, replace ignition coil with power transistor assembly.

SEF123Y

ECM RELAY

NLEC0547S03

1.

Apply 12V of direct current between ECM relay terminals 1 and
2.

2.

Check continuity between ECM relay terminals 3 and 5, and 6
and 7.

Condition

Continuity

12V direct current supply between ter-
minals 1 and 2

Yes

OFF

No

IGNITION SIGNAL

QG18DE

Diagnostic Procedure (Cont’d)

EC-509

If NG, replace ECM relay.

SEF124Y

CONDENSER

NLEC0547S02

1.

Disconnect condenser harness connector.

2.

Check condenser continuity between terminals 1 and 2.

Resistance: Above 1 M

Ω

at 25°C (77°F)

If NG, replace condenser.

IGNITION SIGNAL

QG18DE

Component Inspection (Cont’d)

EC-510

CONSULT-II Reference Value in Data Monitor
Mode

NLEC0441

Specification data are reference values.

MONITOR ITEM

CONDITION

SPECIFICATION

START SIGNAL

+

Ignition switch: ON

→

START

→

ON

OFF

→

ON

→

OFF

ECM Terminals and Reference Value

NLEC0442

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

QG18DE

CONSULT-II Reference Value in Data Monitor Mode

EC-511

Wiring Diagram

NLEC0440

MODELS WITH ECM IN ENGINE COMPARTMENT

NLEC0440S01

YEC675

START SIGNAL

QG18DE

Wiring Diagram

EC-512

MODELS WITH ECM IN CABIN

NLEC0440S02

YEC903

START SIGNAL

QG18DE

Wiring Diagram (Cont’d)

EC-513

Diagnostic Procedure

=NLEC0443

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

QG18DE

Diagnostic Procedure

EC-514

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-145.

©

INSPECTION END

START SIGNAL

QG18DE

Diagnostic Procedure (Cont’d)

EC-515

System Description

NLEC0444

Sensor

Input Signal to ECM

ECM func-

tion

Actuator

Crankshaft position sensor (POS)

Engine speed

Fuel pump
control

Fuel pump relay

Camshaft position sensor (PHASE)

Engine speed and cylinder number

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

NLEC0501

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

CONSULT-II Reference Value in Data Monitor
Mode

NLEC0445

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

QG18DE

System Description

EC-516

ECM Terminals and Reference Value

=NLEC0446

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)

21

B/P

Fuel pump relay

[Ignition switch “ON”]

+

For 1 second after turning ignition switch “ON”

[Engine is running]

0 - 1V

[Ignition switch “ON”]

+

More than 1 second after turning ignition switch
“ON”

BATTERY VOLTAGE
(11 - 14V)

FUEL PUMP

QG18DE

ECM Terminals and Reference Value

EC-517

Wiring Diagram

NLEC0447

MODELS WITH ECM IN ENGINE COMPARTMENT

NLEC0447S01

YEC714

FUEL PUMP

QG18DE

Wiring Diagram

EC-518

MODELS WITH ECM IN CABIN

NLEC0447S02

YEC904

FUEL PUMP

QG18DE

Wiring Diagram (Cont’d)

EC-519

Diagnostic Procedure

NLEC0448

1

CHECK OVERALL FUNCTION

1. Turn ignition switch “ON”.
2. Pinch fuel feed hose with fingers.

JEF133Y

Fuel pressure pulsation should be felt on the fuel feed hose for 1 second after ignition switch is turned “ON”.

OK or NG

OK

©

INSPECTION END

NG

©

GO TO 2.

2

CHECK POWER SUPPLY

1. Turn ignition switch “OFF”.
2. Disconnect fuel pump relay.

SEF633Z

3. Turn ignition switch “ON”.
4. Check voltage between terminals 1, 5 and ground with CONSULT-II or tester.

SEF607X

OK or NG

OK

©

GO TO 4.

NG

©

GO TO 3.

FUEL PUMP

QG18DE

Diagnostic Procedure

EC-520