Infiniti M45 (Y34). Manual - part 739

 

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Infiniti M45 (Y34). Manual - part 739

 

 

BATTERY

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1.

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

2.

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.

3.

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

4.

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

5.

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.

6.

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.

7.

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

8.

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

9.

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

NOTE:

If necessary, the tester will ask the user to determine if the bat-
tery has just been charged. Choose the appropriate selection 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 CHANGE”.

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

Removal and Installation 

AKS002EE

REMOVAL

1.

Disconnect negative battery cable and positive battery cable.

CAUTION:

When disconnecting, disconnect negative battery cable
first.

2.

Remove battery fix frame.

3.

Remove battery case.

4.

Remove battery.

5.

Remove battery tray.

INSTALLATION

Install in the reverse order of removal.

CAUTION:

When connecting, connect positive battery cable first.

SEL576X

Diagnostic item

Service procedure

GOOD BATTERY

Battery is OK, go to “Trouble Diagnosis”, “STARTING SYSTEM”. Refer to 

SC-6, "Trouble Diagnosis 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 Battery”, then do so. Perform bat-
tery 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.) Perform 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”.

PKIA1803E

Battery fix frame mounting nut and bolt:

: 4.4 N·m (0.45 kg-m, 39 in-lb)

Battery terminal nut:

: 5.4 N·m (0.55 kg-m, 48 in-lb)

STARTING SYSTEM

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STARTING SYSTEM 

PFP:00011

System Description 

AKS002EK

Power is supplied at all times

through 50A fusible link (letter G, located in the fuse, fusible link and relay box)

to ignition switch terminal 1.

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

from ignition switch terminal 4

to park/neutral position relay terminal 7.

Ground is supplied with the selector lever in the P or N position

to TCM terminal 48 through park/neutral position relay terminals 1 and 2 

from body grounds E24 and E42.

Then park/neutral position switch is energized and power is supplied

from park/neutral position relay terminal 6

to starter motor terminal 1.

The starter motor plunger closes and provides a closed circuit between the battery and starter motor. The
starter motor is grounded to the engine block. With power and ground supplied, cranking occurs and the
engine starts.

SC-10

STARTING SYSTEM

Wiring Diagram — START — 

AKS002EL

TKWA0514E

 

 

 

 

 

 

 

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