Infiniti FX35 / FX45. Manual - part 908

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< SERVICE INFORMATION >

CHARGING SYSTEM

Wiring Diagram - CHARGE -

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VK45DE ENGINE MODELS

TKWM4287E

CHARGING SYSTEM

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< SERVICE INFORMATION >

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VQ35DE ENGINE MODELS

Trouble Diagnosis with Starting/Charging System Tester (Charging)

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

TKWM4288E

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< SERVICE INFORMATION >

CHARGING SYSTEM

PRELIMINARY INSPECTION

1.

CHECK BATTERY TERMINALS CONNECTION

*1

Refer to "Check “L” Terminal Circuit 
(Open)".

*2

Refer to "Check “L” Terminal Circuit 
(Short)".

*3

Refer to "Check “S” Terminal Circuit".

*4

Refer to "Check “B” Terminal Circuit". *5

SC-25, "Removal and Installation 
(VK45DE Engine Mod-
els)"

(VK45DE)

SC-27, "Removal and Installation 
(VQ35DE Engine Mod-
els)"

(VQ35DE)

SKIB0527E

CHARGING SYSTEM

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< SERVICE INFORMATION >

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Check if battery terminals are clean and tight.

OK or NG

OK

>> GO TO 2.

NG

>> Repair battery terminals connection.

2.

CHECK FUSE AND FUSIBLE LINK

Check for blown alternator and combination meter fuses.

OK or NG

OK

>> GO TO 3.

NG

>> If fuse is blown, be sure 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 

EM-170, "Checking Drive Belts"

 (VK45DE) or 

EM-14, "Checking

Drive Belts"

 (VQ35DE).

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.

2.

CHECK “L” TERMINAL CIRCUIT (OPEN)

1.

Disconnect alternator connector.

2.

Apply ground to alternator harness connector E311 (VK45DE) or
F26 (VQ35DE) terminal 3 with the ignition switch in the ON posi-
tion.

OK or NG

OK

>> Go to 

SC-21, "Trouble Diagnosis with Starting/Charging

System Tester (Charging)"

.

NG

>>

Check the following.

• Charge warning lamp (Combination meter)
• Harness for open between combination meter and

fuse

• Harness for open between combination meter and alternator

DIAGNOSTIC PROCEDURE 2

Unit

Power source (Power supply terminals)

Fuse No.

Alternator

Battery (“S” terminal)

33

Combination meter

Ignition switch ON (“L” terminal)

14

3 – Ground

: Charge warning lamp should light up.

SKIB8493E