Infiniti M35/M45 Y50. Manual - part 1047

CHARGING SYSTEM

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D

E

F

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L

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VQ35DE ENGINE MODELS (AWD)

TKWT5248E

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CHARGING SYSTEM

VK45DE ENGINE MODELS

TKWT5249E

CHARGING SYSTEM

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Trouble Diagnosis with Starting/Charging System Tester (Charging)

NKS005BZ

For charging system testing, use Starting/Charging System Tester (J-44373). For details and operating
instructions, refer to Technical Service Bulletin.

SKIB0527E

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CHARGING SYSTEM

PRELIMINARY INSPECTION

1. 

CHECK BATTERY TERMINALS CONNECTION

Check if battery terminals is clean and tight.

OK or NG

OK

>> GO TO 2.

NG

>> Repair battery terminals connection.

2. 

CHECK FUSE AND FUSIBLE LINK

Check for blown fuse and fusible link.

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 “E” TERMINAL CONNECTION

Check if “E” terminal (alternator ground harness) is clean and tight.

OK or NG

OK

>> GO TO 4.

NG

>> Repair “E” terminal connection.

4. 

CHECK ALTERNATOR DRIVE BELT TENSION

Check alternator drive belt tension. Refer to the following.

●

VQ35DE: 

EM-17, "Removal and Installation"

●

VK45DE: 

EM-174, "Removal and Installation"

OK or NG

OK

>> INSPECTION END

NG

>> Repair as needed.

DIAGNOSTIC PROCEDURE 1
Check “L” Terminal Circuit (Open)

1. 

CHECK “L” TERMINAL CONNECTION

1.

Turn ignition switch OFF.

2.

Check if “L” terminal is clean and tight.

OK or NG

OK

>> GO TO 2.

NG

>> Repair “L” terminal connection. Confirm repair by performing complete Starting/Charging system

test. Refer to Technical Service Bulletin.

*1

SC-26, "Check “L” Terminal Circuit 
(Open)"

*2

SC-27, "Check “L” Terminal Circuit 
(Short)"

*3

SC-27, "Check “S” Terminal Circuit"

*4

SC-28, "Check “B” Terminal Circuit"

*5

SC-32, "Alternator Pulley Inspec-
tion"

 (VQ35DE)

SC-34, "Alternator Pulley Inspec-
tion"

 (VK45DE)

Unit

Power source (Power supply terminals)

Fuse and fusible link No.

Alternator

Battery (“S” terminal)

36

Combination meter

Ignition switch ON (“L” terminal)

14