Content .. 395 396 397 398 ..

Nissan Pathfinder (2005 year). Manual - part 397

PREPARATION

SC-3

2005 Pathfinder

PREPARATION

PFP:00002

Special Service Tool

EKS009IT

Commerical Service Tools

EKS009IU

Tool number
(Kent-Moore No.)
Tool name

Description

J-44373 Model 620
Battery/Starting/Charging system
tester

SEL403X

Tool number
Tool name

Description

Power tool

Loosening bolts and nuts

PBIC0190E

SC-4

BATTERY

2005 Pathfinder

BATTERY

PFP:AYBGL

How to Handle Battery

EKS009IV

CAUTION:

●

If it becomes necessary to start the engine with a booster battery and jumper cables, use a 12-volt
booster battery.

●

After connecting battery cables, ensure that they are tightly clamped to battery terminals for good
contact.

●

Never add distilled water through the hole used to check specific gravity.

METHODS OF PREVENTING OVER-DISCHARGE

The following precautions must be taken to prevent over-discharging
a battery.

●

The battery surface (particularly its top) should always be kept
clean and dry.

●

The terminal connections should be clean and tight.

●

At every routine maintenance, check the electrolyte level.
This also applies to batteries designated as “low maintenance”
and “maintenance-free”.

●

When the vehicle is not going to be used over a long period of
time, disconnect the negative battery terminal.

●

Check the charge condition of the battery.
Periodically check the specific gravity of the electrolyte. Keep a
close check on charge condition to prevent over-discharge.

CHECKING ELECTROLYTE LEVEL

WARNING:

Do not allow battery fluid to come in contact with skin, eyes, fabrics, or painted surfaces. After touch-
ing a battery, do not touch or rub your eyes until you have thoroughly washed your hands. If acid con-
tacts eyes, skin or clothing, immediately flush with water for 15 minutes and seek medical attention.

MEL040F

MEL041F

MEL042F

BATTERY

SC-5

2005 Pathfinder

●

Remove the cell plug using a suitable tool.

●

Add distilled water up to the MAX level.

Sulphation

A battery will be completely discharged if it is left unattended
for a long time and the specific gravity will become less than
1.100. This may result in sulphation on the cell plates.
To determine if a battery has been “sulphated”, note its voltage
and current when charging it. As shown in the figure, less cur-
rent and higher voltage are observed in the initial stage of
charging sulphated batteries.
A sulphated battery may sometimes be brought back into ser-
vice by means of a long, slow charge, 12 hours or more, fol-
lowed by a battery capacity test.

SPECIFIC GRAVITY CHECK

Read hydrometer and thermometer indications at eye level.

Use the following chart to correct your hydrometer reading
according to electrolyte temperature.

Hydrometer Temperature Correction

MEL043F

PKIA2353E

MEL042FA

Battery electrolyte temperature

C (

Add to specific gravity reading

71 (160)

0.032

66 (150)

0.028

60 (140)

0.024

54 (130)

0.020

49 (120)

0.016

43 (110)

0.012

38 (100)

0.008

32 (90)

0.004

27 (80)

21 (70)

−

0.004

16 (60)

−

0.008

10 (50)

−

0.012

4 (40)

−

0.016

−

1 (30)

−

0.020

−

7 (20)

−

0.024

SC-6

BATTERY

2005 Pathfinder

CHARGING THE BATTERY

CAUTION:

●

Do not “quick charge” a fully discharged battery.

●

Keep the battery away from open flame while it is being charged.

●

When connecting the charger, connect the leads first, then turn on the charger. Do not turn on the
charger first, as this may cause a spark.

●

If battery electrolyte temperature rises above 55

C (131

F), stop charging. Always charge battery

at a temperature below 55

C (131

F).

Charging Rates

Do not charge at more than 50 ampere rate.

NOTE:
The ammeter reading on your battery charger will automatically decrease as the battery charges. This indi-
cates that the voltage of the battery is increasing normally as the state of charge improves. The charging amps
indicated above refer to initial charge rate.

●

If, after charging, the specific gravity of any two cells varies more than 0.050, the battery should be
replaced.

Trouble Diagnoses with Battery/Starting/Charging System Tester

EKS009IW

CAUTION:

When working with batteries, always wear appropriate eye protection.
NOTE:

●

To ensure a complete and thorough diagnosis, the battery, starter and generator test segments must be
done as a set from start to finish.

●

If battery surface charge is detected while testing, the tester will prompt you to turn on the headlights to
remove the surface charge.

●

If necessary, the tester will prompt you to determine if the battery temperature is above or below 0

(32

F). Choose the appropriate selection by pressing the up or down arrow button, then press “ENTER” to

make the selection.

−

12 (10)

−

0.028

−

18 (0)

−

0.032

Corrected specific gravity

Approximate charge condition

1.260 - 1.280

Fully charged

1.230 - 1.250

3/4 charged

1.200 - 1.220

1/2 charged

1.170 - 1.190

1/4 charged

1.140 - 1.160

Almost discharged

1.110 - 1.130

Completely discharged

Battery electrolyte temperature

C (

Add to specific gravity reading

Amps

Time

1 hour

2 hours

5 hours

10 hours

BATTERY

SC-7

2005 Pathfinder

Turn off all loads on the vehicle electrical system. Clean or repair
as necessary.

Visually inspect the battery, battery terminals and cable ends
with ignition switch in “OFF” position.

NOTE:
The contact surface between the battery terminals, cable ends
and tester leads must be clean for a valid test. A poor connec-
tion will prevent testing and a “CHECK CONNECTION” mes-
sage will appear during the test procedures. If this occurs, clean
the battery post and terminals, reconnect them and restart the
test.

Connect the red tester lead clamp to the positive battery termi-
nal, and the black to the negative terminal.

The tester will turn on automatically. Using the arrow keys,
select “IN-VEHICLE” on the tester and then press the “ENTER”
key.

Locate the battery type and rating stamped or written on the top
case of the battery to be tested.

NOTE:
The battery type and rating will have either of the following.
CCA: Cold Cranking Amps (490 CCA, 550 CCA, etc.)
JIS: Japanese Industrial Standard.
Battery is stamped with a number such as:
80D26L: 80 (rank of output), D (physical size-depth), 26 (width
in cm). The last character L (post configuration) is not input into
the tester.
The tester requires the rating for the battery be entered exactly
as it is written or stamped on the battery. Do not attempt a CCA
conversion for JIS stamped batteries. JIS must be input directly.

Using the arrow and “ENTER” keys alternately, select the battery type and rating.

NOTE:
The tester lists five choices; CCA, JIS, IEC, DIN, and EN. Only use CCA or JIS.

Press “ENTER” to begin the test. Diagnosis results are dis-
played on the tester. Refer to

SC-8, "DIAGNOSTIC RESULT

ITEM CHART"

SEL404X

SEL405X

SEL406X

SEL407X

SC-8

BATTERY

2005 Pathfinder

Press “ENTER”, then test output code is displayed. Record the
test output code on the repair order.

Toggle back to the “DIAGNOSTIC SCREEN” for test results.

NOTE:

●

If necessary, the tester will ask the user to determine if the
battery has just been charged. Choose the appropriate selec-
tion by pressing the up or down arrow button and then press
the “ENTER” button to make the selection.

●

When testing a battery installed in a vehicle that has recently
been driven, select “BEFORE CHARGE”.

●

If the battery has just been slow charged due to a “CHARGE
& RETEST” decision by the tester, and the tester asks the user “BEFORE CHARGE/AFTER
CHARGE”, select “AFTER CHARGE”.

DIAGNOSTIC RESULT ITEM CHART

SEL576X

Diagnostic item

Service procedure

GOOD BATTERY

Battery is OK. Refer to

SC-6, "Trouble Diagnoses with Battery/Starting/Charging System

Tester"

REPLACE BATTERY

Replace battery.
Before replacing battery, clean the battery cable clamps and battery posts. Perform battery
test again with Battery/Starting/Charging system tester. If second test result is “Replace Bat-
tery”, then do so. Perform battery test again to confirm repair.

BAD CELL-REPLACE

Replace the battery. Perform battery test again with Battery/Starting/Charging system tester
to confirm repair.

GOOD-RECHARGE

Perform the slow battery charging procedure. (Initial rate of charge is 10A for 12 hours.) Per-
form battery test again with Battery/Starting/Charging system tester.

CHARGE & RETEST

Perform the slow battery charging. (Initial rate of charge is 10A for 12 hours.)
Perform battery test again with Battery/Starting/Charging system tester to confirm repair.

NOTE:
If the tester asks the user “BEFORE CHARGE/AFTER CHARGE”, select “AFTER
CHARGE”.

BATTERY

SC-9

2005 Pathfinder

Removal and Installation

EKS009IX

REMOVAL

Disconnect both negative and positive battery terminal.

CAUTION:

When removing, remove negative battery terminal first.

Remove battery clamp bolts and battery clamp.

Remove battery.

INSTALLATION

Installation is in the reverse order of removal.

CAUTION:

When installing, install positive battery terminal first.

WKIA3188E

Battery clamp bolt

: 3.4 N·m (0.35 kg-m, 30 in-lb)

Battery terminal nut

: 3.4 N·m (0.35 kg-m, 30 in-lb)

SC-10

STARTING SYSTEM

2005 Pathfinder

STARTING SYSTEM

PFP:23300

System Description

EKS009IY

Power is supplied at all times:

●

to starter motor terminal 2 and

●

through 40A fusible link (letter j , located in the fuse and fusible link box)

●

to ignition switch terminal B.

With the ignition switch in the START position, power is supplied:

●

from ignition switch terminal ST

●

to IPDM E/R terminal 21.

With the ignition switch in the ON or START position, power is supplied to IPDM E/R (intelligent power distribu-
tion module engine room) CPU.
With the selector lever in the P or N position, power is supplied:

●

through A/T assembly terminal 9

●

to IPDM E/R terminal 48.

Ground is supplied at all times:

●

to IPDM E/R terminals 38 and 59

●

from body grounds E9, E15 and E24.

Then the starter relay is turned on.
The IPDM E/R starter relay is energized and power is supplied:

●

from terminal 19 of the IPDM E/R

●

to terminal 1 of the starter motor.

The starter motor plunger closes and provides a closed circuit between the battery and the starter motor. The
starter motor is grounded to the cylinder block. With power and ground supplied, the starter motor operates.

Content .. 395 396 397 398 ..