Nissan Pathfinder (2007 year). Manual - part 369

 

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Nissan Pathfinder (2007 year). Manual - part 369

 

 

SC-26

CHARGING SYSTEM

2007 Pathfinder

PRELIMINARY INSPECTION

1. 

CHECK BATTERY TERMINALS CONNECTION

Check if battery terminals are clean and tight.

OK or NG

OK

>> GO TO 2.

NG

>> Repair battery terminal connections.

2. 

CHECK FUSE AND FUSIBLE LINK

Check for blown fuses and fusible link. Refer to 

PG-86, "FUSE AND FUSIBLE LINK BOX"

 .

OK or NG

OK

>> GO TO 3.

NG

>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.

3. 

CHECK GENERATOR DRIVE BELT TENSION

Check generator drive belt tension. Refer to 

EM-14, "Checking Drive Belts"

 .

OK or NG

OK

>> Inspection End.

NG

>> Repair as needed.

DIAGNOSTIC PROCEDURE 1
Check Charge Warning Lamp Circuit (Open)

1. 

CHECK CHARGE WARNING LAMP CIRCUIT CONNECTION

1.

Turn the ignition switch OFF.

2.

Check terminal "2" harness connector.

OK or NG

OK

>> GO TO 2.

NG

>> Repair terminal "2" connection. Confirm repair by performing complete Battery/Starting/Charging

system test. Refer to 

SC-22, "Trouble Diagnoses with Battery/Starting/Charging System Tester"

 .

2. 

CHECK CHARGE WARNING LAMP CIRCUIT (OPEN)

1.

Disconnect E205 connector from generator.

2.

Apply ground to connector E205 terminal 2 with the ignition
switch in the ON position.

OK or NG

OK

>> GO TO 

SC-25, "WORK FLOW"

 .

NG

>> Check the following.

●

Charge warning lamp (Combination meter)

●

Harness for open or short between combination
meter and fuse

●

Harness for open between combination meter and
generator

Unit

Power source (Power supply terminals)

Fuse or fusible link

Generator

Battery (“1” terminal)

a

Battery (“3” terminal)

30

Combination meter

Ignition switch ON (“2” terminal)

14

CHARGE lamp should light up.

WKIA3184E

CHARGING SYSTEM

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2007 Pathfinder

DIAGNOSTIC PROCEDURE 2
Check Charge Warning Lamp Circuit (Short)

1. 

CHECK CHARGE WARNING LAMP CIRCUIT (SHORT)

1.

Turn the ignition switch OFF.

2.

Disconnect generator connector E205.

3.

Turn ignition switch ON.

Does charge warning lamp light up?

YES

>> Check the following.

●

Harness for short between combination meter and generator

●

Charge warning lamp (Combination meter)

NO

>> GO TO 

SC-25, "WORK FLOW"

 .

SC-28

CHARGING SYSTEM

2007 Pathfinder

DIAGNOSTIC PROCEDURE 3
Check Voltage Regulator Circuit

1. 

CHECK VOLTAGE REGULATOR CIRCUIT CONNECTION

1.

Turn the ignition switch OFF.

2.

Check terminal "3" harness connector.

OK or NG

OK

>> GO TO 2.

NG

>> Repair terminal "3" connection. Confirm repair by performing complete Battery/Starting/Charging

system test. Refer to 

SC-22, "Trouble Diagnoses with Battery/Starting/Charging System Tester"

 .

2. 

CHECK GENERATOR VOLTAGE REGULATOR CIRCUIT

Check voltage between generator connector E205 terminal 3 and
ground using a digital circuit tester.

OK or NG

OK

>> GO TO 

SC-25, "WORK FLOW"

 .

NG

>> Check harness for open between generator and fuse.

Battery voltage should exist.

WKIA3186E

CHARGING SYSTEM

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2007 Pathfinder

DIAGNOSTIC PROCEDURE 4
Check Battery Circuit

1. 

CHECK BATTERY CIRCUIT CONNECTION

1.

Turn the ignition switch OFF.

2.

Check to see if terminal "1" is clean and tight.

OK or NG

OK

>> GO TO 2.

NG

>> Repair terminal "1" connection. Confirm repair by performing complete Battery/Starting/Charging

system test. Refer to 

SC-22, "Trouble Diagnoses with Battery/Starting/Charging System Tester"

 .

2. 

CHECK BATTERY CIRCUIT

Check voltage between generator connector E206 terminal 1 and
ground using a digital circuit tester.

OK or NG

OK

>> GO TO 3.

NG

>> Check harness for open between generator and fusible

link.

3. 

CHECK VOLTAGE DROP ON BATTERY CIRCUIT

1.

Start engine.

2.

While engine is running at idle and warm, check voltage
between generator connector E206 terminal 1 and battery posi-
tive terminal using a digital circuit tester.

OK or NG

OK

>>

SC-25, "WORK FLOW"

.

NG

>> Check harness between the battery and the generator

for poor continuity.

Battery voltage should exist.

WKIA2111E

With engine running 
at idle and warm.

: Less than 0.2V

WKIA3185E

SC-30

CHARGING SYSTEM

2007 Pathfinder

Power Generation Variable Voltage Control System Inspection

EKS00FTR

CAUTION:

●

For this model, the battery current sensor that is installed to the negative battery cable measures
the charging/discharging current of the battery and performs various engine controls. If an electri-
cal component is connected directly to the negative battery terminal, the current flowing through
that component will not be measured by the battery current sensor. This condition may cause a
malfunction of the engine control system and battery discharge may occur. Do not connect an
electrical component or ground wire directly to the battery terminal.

●

When performing this inspection, always use the charged battery that completed the battery
inspection. When the charging rate of the battery is low, the response speed of the voltage change
will become slow. This is a cause of an incorrect inspection.

INSPECTION PROCEDURE

1. 

CHECK SELF-DIAGNOSIS OF ECM

CAUTION:

If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunction might be detected
in self-diagnosis depending on control unit which carries out CAN communication.

Perform ECM self-diagnosis with CONSULT-II.

Self-diagnostic results content

No malfunction detected>>GO TO 2.
Malfunction detected>>Check applicable parts, and repair or replace corresponding parts.

2. 

CHECK POWER GENERATION VARIABLE VOLTAGE CONTROL SYSTEM OPERATION

1.

Connect CONSULT-II and CONSULT-II CONVERTER and start the engine.

2.

Put selector lever in “P” or “N” position and turn all electric loads including A/C OFF.

3.

Select “ALT DUTY” at “ACTIVE TEST” of “ENGINE”, and then
check the value of “BATTERY VOLT” monitor when “ALTERNA-
TOR DUTY” is set to 40 %.

4.

Check the value of “BATTERY VOLT” when “ALTERNATOR
DUTY” is set to 80%.

OK or NG

OK

>> Inspection End.

NG

>> GO TO 3. (The charging condition of the battery should

be normal.)

“BATTERY VOLT”

seconds after setting 
“ALTERNATOR DUTY” to 
40%

12.0 V - 13.6 V

PKIB4503E

“BATTERY VOLT”

20 seconds after setting 
“ALTERNATOR DUTY” to 
80%

0.5 V or more than the 
value of “BATTERY 
VOLT” when "ALTERNA-
TOR DUTY" was 40%

PKIB4504E

CHARGING SYSTEM

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2007 Pathfinder

3. 

CHECK SELF-DIAGNOSIS OF IPDM E/R

Perform IPDM E/R self-diagnosis with CONSULT-II.

Self-diagnostic results content

No malfunction detected>>GO TO 4.
Malfunction detected>>Check applicable parts, and repair or replace corresponding parts.

4. 

CHECK HARNESS BETWEEN IPDM AND GENERATOR

1.

Disconnect generator connector E205 and IPDM E/R connector E122.

2.

Check continuity between generator harness connector E205
terminal 4 and IPDM E/R harness connector E122 terminal 37.

3.

Check continuity between generator harness connector E205
terminal 4 and ground.

OK or NG

OK

>> Replace IPDM E/R. Refer to 

PG-32, "Removal and

Installation of IPDM E/R"

 .

NG

>> Repair harness or connector between IPDM E/R and

generator. 

Removal and Installation

EKS00FTS

REMOVAL

1.

Disconnect the negative battery terminal.

2.

Remove the fan shroud. Refer to 

CO-14, "Removal and Installation"

 .

4 – 37

Continuity should exist.

4 – Ground

Continuity should not exist.

SKIB2697E

1.

Generator

2.

Engine block

3.

Generator stay

WKIA3191E

SC-32

CHARGING SYSTEM

2007 Pathfinder

3.

Remove the drive belt. Refer to 

EM-14, "Removal and Installation"

 .

4.

Remove generator stay, using power tools. 

5.

Remove the generator upper bolt, using power tools.

6.

Disconnect the generator harness connectors.

7.

Remove the generator.

GENERATOR PULLEY INSPECTION

Perform the following.

●

Make sure that the generator pulley does not rattle.

●

Make sure that the generator pulley nut is properly tightened.

INSTALLATION

Installation is in the reverse order of removal.

●

Install the generator and check tension of drive belt. Refer to 

EM-14, "Tension Adjustment"

 .

CAUTION:

Be sure to tighten terminal "1" nut carefully.

●

For this model, the power generation variable voltage control system that controls the power generation
voltage of the generator has been adopted. Therefore, the power generation variable voltage control sys-
tem inspection should be performed after replacing the generator in order to ensure that the system oper-
ates normally. Refer to 

SC-30, "Power Generation Variable Voltage Control System Inspection"

 .

Generator pulley nut

: 118 N·m (12.0 kg-m, 87 ft-lb)

Terminal "1" nut

: 10.8 N·m (1.1 kg-m, 8 ft-lb)

 

 

 

 

 

 

 

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