Nissan Pathfinder (2007 year). Manual - part 366

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.

WARNING:

●

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

●

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

●

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.

Precautions for Power Generation Variable Voltage Control System

EKS00FTD

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 electrical com-
ponent is connected directly to the negative battery terminal, the current flowing through that compo-
nent 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.

PREPARATION

SC-3

2007 Pathfinder

PREPARATION

PFP:00002

Special Service Tools

EKS00FTF

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.

Commerical Service Tools

EKS00FTG

Tool number
(Kent-Moore No.)
Tool name

Description

(

—

)

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

(J-48087)
Battery Service Center

Tests and charges batteries

SEL403X

WKIA5280E

Tool number
Tool name

Description

Power tool

Loosening bolts and nuts

PBIC0190E

SC-4

BATTERY

2007 Pathfinder

BATTERY

PFP:AYBGL

How to Handle Battery

EKS00FTH

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

2007 Pathfinder

●

Remove the cell plug using a suitable tool.

●

Add distilled water up to the MAX level.

Sulfation

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 sulfation of the cell plates.
To determine if a battery has been sulfated, note its voltage and
current when charging it. As shown in the figure, less current
and higher voltage are observed in the initial stage of charging
sulfated batteries.
A sulfated battery may sometimes be brought back into service
by means of a long, slow charge, 12 hours or more, followed 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

2007 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

EKS00FTI

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

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2007 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 rating will be either of the following:

●

CCA: Cold Cranking Amps (490 CCA, 550 CCA, etc.)

●

JIS: Japanese Industrial Standard.

When using the Battery Tester use the CCA rating only.

●

The tester requires the CCA rating for the battery be entered
exactly as it is written or stamped on the battery.

●

(U.S. market) Refer to the latest "Battery Testing" Technical
Service Bulletin (TSB) for a chart which contains these ratings
listed by vehicle.

●

You must not use the JIS rating.

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.

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

SC-8, "DIAGNOSTIC RESULT

ITEM CHART"

SEL404X

SEL405X

WKIA4228E

SEL407X

SC-8

BATTERY

2007 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”.

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