Nissan Teana J32. Manual - part 450

 

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Nissan Teana J32. Manual - part 450

 

 

EC-338

< COMPONENT DIAGNOSIS >

[VQ25DE, VQ35DE]

FUEL PUMP

2.

CHECK FUEL PUMP POWER SUPPLY CIRCUIT-II

Check the voltage between IPDM E/R harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 14.

3.

DETECT MALFUNCTIONING PART

Check the following.
• IPDM E/R harness connector F12
• Harness for open or short between IPDM E/R and ECM

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

4.

CHECK CONDENSER POWER SUPPLY CIRCUIT-I

1.

Turn ignition switch OFF.

2.

Reconnect all harness connectors disconnected.

3.

Disconnect condenser harness connector.

4.

Turn ignition switch ON.

5.

Check the voltage between condenser harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> GO TO 5.

5.

CHECK 15A FUSE

1.

Turn ignition switch OFF.

2.

Disconnect 15A fuse (No. 41).

3.

Check 15A fuse.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace 15A fuse.

6.

CHECK CONDENSER POWER SUPPLY CIRCUIT-II

1.

Disconnect IPDM E/R harness connector.

2.

Check the continuity between IPDM E/R harness connector and condenser harness connector.

3.

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

Is the inspection result normal?

YES

>> GO TO 14.

NO

>> GO TO 7.

7.

DETECT MALFUNCTIONING PART

IPDM E/R

Ground

Voltage

Connector

Terminal

F12

77

Ground

Battery voltage

Condenser

Ground

Voltage

Connector

Terminal

B81

1

Ground

Battery voltage should exist for 1 second 
after ignition switch is turned ON.

IPDM E/R

Condenser

Continuity

Connector

Terminal

Connector

Terminal

E10

13

B81

1

Existed

FUEL PUMP

EC-339

< COMPONENT DIAGNOSIS >

[VQ25DE, VQ35DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

Check the following.
• Harness connectors E104, B4
• IPDM E/R connector E10
• Harness for open or short between IPDM E/R and condenser

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

8.

CHECK CONDENSER GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check the continuity between condenser harness connector and ground.

3.

Also check harness for short to power.

Is the inspection result normal?

YES

>> GO TO 9.

NO

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

9.

CHECK CONDENSER

Refer to 

EC-340, "Component Inspection (Condenser)"

.

Is the inspection result normal?

YES

>> GO TO 10.

NO

>> Replace condenser.

10.

CHECK FUEL PUMP POWER SUPPLY CIRCUIT-III

1.

Disconnect “fuel level sensor unit and fuel pump” harness connector.

2.

Check harness continuity between IPDM E/R harness connector and “fuel level sensor unit and fuel
pump” harness connector.

Is the inspection result normal?

YES

>> GO TO 12.

NO

>> GO TO 11.

11.

DETECT MALFUNCTIONING PART

Check the following.
• Harness connectors B4, E104
• Harness for open or short between “fuel level sensor unit and fuel pump” and IPDM E/R

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

12.

CHECK FUEL PUMP GROUND CIRCUIT

1.

Disconnect “fuel level sensor unit and fuel pump” harness connector.

2.

Check the continuity between “fuel level sensor unit and fuel pump” harness connector and ground.

Is the inspection result normal?

Condenser

Ground

Continuity

Connector

Terminal

B81

2

Ground

Existed

IPDM E/R

Fuel level sensor unit and fuel 

pump

Continuity

Connector

Terminal

Connector

Terminal

E10

13

B40

1

Existed

Fuel level sensor unit and fuel 

pump

Ground

Continuity

Connector

Terminal

B40

3

Ground

Existed

EC-340

< COMPONENT DIAGNOSIS >

[VQ25DE, VQ35DE]

FUEL PUMP

YES

>> GO TO 13.

NO

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

13.

CHECK FUEL PUMP

Refer to 

EC-340, "Component Inspection (Fuel Pump)"

.

Is the inspection result normal?

YES

>> GO TO 14.

NO

>> Replace fuel pump.

14.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-35, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace IPDM E/R.

NO

>> Repair or replace harness or connectors.

Component Inspection (Fuel Pump)

INFOID:0000000003856846

1.

CHECK FUEL PUMP

1.

Turn ignition switch OFF.

2.

Disconnect “fuel level sensor unit and fuel pump” harness connector.

3.

Check resistance between “fuel level sensor unit and fuel pump” terminals as per the following.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace “fuel level sensor unit and fuel pump”

Component Inspection (Condenser)

INFOID:0000000003856847

1.

CHECK CONDENSER

1.

Turn ignition switch OFF.

2.

Disconnect condenser harness connector.

3.

Check resistance between condenser terminals as per the following.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace condenser.

Terminals

Resistance

1 and 3

0.2 - 5.0 

 [at 25

°

C (77

°

F)]

Terminals

Resistance

1 and 2

Above 1 M

 [at 25

°

C (77

°

F)]

IGNITION SIGNAL

EC-341

< COMPONENT DIAGNOSIS >

[VQ25DE, VQ35DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

IGNITION SIGNAL

Description

INFOID:0000000003856848

The ignition signal from the ECM is sent to and amplified by the power transistor. The power transistor turns
ON and OFF the ignition coil primary circuit. This ON/OFF operation induces the proper high voltage in the coil
secondary circuit.

Component Function Check

INFOID:0000000003856849

1.

INSPECTION START

Turn ignition switch OFF, and restart engine.

Does the engine start?

YES-1 >> With CONSULT-III: GO TO 2.
YES-2 >> Without CONSULT-III: GO TO 3.
NO

>> Go to 

EC-341, "Diagnosis Procedure"

.

2.

CHECK IGNITION SIGNAL FUNCTION

With CONSULT-III

1.

Perform “POWER BALANCE” in “ACTIVE TEST” mode with CONSULT-III.

2.

Check that each circuit produces a momentary engine speed drop.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Go to 

EC-341, "Diagnosis Procedure"

.

3.

CHECK IGNITION SIGNAL FUNCTION

 Without CONSULT-III

1.

Let engine idle.

2.

Read the voltage signal between ECM harness connector ground with an oscilloscope.

NOTE:

The pulse cycle changes depending on rpm at idle.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Go to 

EC-341, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000003856850

1.

CHECK IGNITION COIL POWER SUPPLY CIRCUIT-I

1.

Turn ignition switch OFF, wait at least 10 seconds and then turn it ON.

2.

Check the voltage between ECM harness connector and ground.

ECM

Ground

Voltage signal

Connector

Terminal

F7

9

Ground

10

11

18

19

21

JMBIA0035GB

ECM

Ground

Voltage

Connector

Terminal

E16

105

Ground

Battery voltage

 

 

 

 

 

 

 

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