2006 INFINITI FX35 coolant

SC-1
STARTING & CHARGING SYSTEM
K ELECTRICAL
CONTENTS
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G H
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SECTION SC
A
B
SC
Revision: 2006 December 2006 FX35/FX45
STARTING & CHARGING SYSTEM
PRECAUTIONS ..................................................... ..... 2
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 2
PREPARATION ...................................................... ..... 3
Special Service Tools .......................................... ..... 3
Commercial Service Tools ................................... ..... 3
BATTERY ............................................................... ..... 4
How to Handle Battery ........................................ ..... 4
METHODS OF PREVENTING OVER-DIS-
CHARGE .......................................................... ..... 4
CHECKING ELECTROLYTE LEVEL ............... ..... 5
SPECIFIC GRAVITY CHECK .......................... ..... 5
CHARGING THE BATTERY ............................ ..... 6
Trouble Diagnoses with Battery Service Center .. ..... 7
Removal and Installation ..................................... ..... 7
REMOVAL ........................................................ ..... 7
INSTALLATION ................................................ ..... 7
STARTING SYSTEM ............................................. ..... 8
System Description ............................................. ..... 8
Wiring Diagram — START — .............................. ..... 9
VK45DE ENGINE MODELS ............................ ..... 9
VQ35DE ENGINE MODELS ............................ ... 10
Trouble Diagnosis with Starting/Charging System
Tester (Starting) ................................................... .... 11
DIAGNOSTIC PROCEDURE 1 ........................ ... 12
DIAGNOSTIC PROCEDURE 2 ........................ ... 13
MINIMUM SPECIFICATION OF CRANKING
VOLTAGE REFERENCING COOLANT TEM-
PERATURE ...................................................... ... 13
Removal and Installation ..................................... ... 14 VK45DE ENGINE MODELS .............................
... 14
VQ35DE ENGINE MODELS (2WD) ................. ... 15
VQ35DE ENGINE MODELS (AWD) ................. ... 16
Disassembly and Assembly ................................. ... 17
VK45DE ENGINE MODELS ............................. ... 17
VQ35DE ENGINE MODELS (2WD) ................. ... 18
VQ35DE ENGINE MODELS (AWD) ................. ... 19
INSPECTION AFTER DISASSEMBLY ............. ... 19
CHARGING SYSTEM ............................................ ... 20
System Description .............................................. ... 20
MALFUNCTION INDICATOR ........................... ... 20
Wiring Diagram — CHARGE — .......................... ... 21
VK45DE ENGINE MODELS ............................. ... 21
VQ35DE ENGINE MODELS ............................ ... 22
Trouble Diagnosis with Starting/Charging System
Tester (Charging) ................................................. ... 23
PRELIMINARY INSPECTION .......................... ... 24
DIAGNOSTIC PROCEDURE 1 ........................ ... 25
DIAGNOSTIC PROCEDURE 2 ........................ ... 25
DIAGNOSTIC PROCEDURE 3 ........................ ... 25
DIAGNOSTIC PROCEDURE 4 ........................ ... 26
Removal and Installation ..................................... ... 27
VK45DE ENGINE MODELS ............................. ... 27
VQ35DE ENGINE MODELS ............................ ... 28
Disassembly and Assembly ................................. ... 30
VK45DE ENGINE MODELS ............................. ... 30
VQ35DE ENGINE MODELS ............................ ... 31
SERVICE DATA AND SPECIFICATIONS (SDS) ... ... 32
Battery ................................................................. ... 32
Starter .................................................................. ... 32
Alternator ............................................................. ... 32

SC-12
STARTING SYSTEM
Revision: 2006 December 2006 FX35/FX45
DIAGNOSTIC PROCEDURE 1
Check “B” Terminal Circuit
1. CHECK POWER SUPPLY FOR STARTER MOTOR “B” TERMINAL
1. Remove fuel pump fuse.
2. Crank or start the engine (where possible) until the fuel pressure is released.
3. Turn ignition switch OFF.
4. Make sure that the starter motor “B” terminal E313 terminal 2 connection is clean and tight.
5. Check voltage between starter motor “B” terminal E313 terminal 2 and ground.
OK or NG
OK >> GO TO 2.
NG >> Check harness between battery and starter motor for open circuit.
2. CHECK BATTERY CABLE CONNECTION (VOLTAGE DROP TEST)
Check voltage between starter motor “B” terminal E313 terminal 2
and battery positive terminal.
OK or NG
OK >> GO TO 3.
NG >> Check harness between battery and starter motor for poor continuity.
3. CHECK STARTER MOTOR GROUND CIRCUIT (VOLTAGE DROP TEST)
1. Turn ignition switch OFF.
2. Check voltage between starter motor case and battery negative terminal.
OK or NG
OK >> “B” terminal circuit is OK. Further inspection necessary. Refer to SC-11, "
Trouble Diagnosis with Starting/Charg-
ing System Tester (Starting)" .
NG >> Check starter motor case and ground for poor continuity.
*1 For battery testing, use Battery Ser-
vice Center (J-48087). For details
and operating instructions, refer to
Technical Service Bulletin and/or
Battery Service Center User Guide. *2
SC-13, "MINIMUM SPECIFICATION
OF CRANKING VOLTAGE REFER-
ENCING COOLANT TEMPERA-
TURE"
*3SC-12, "Check “B” Terminal Circuit"
*4SC-13, "Check “S” Connector Cir-
cuit"
2 – Ground : Battery voltage
PKIB8793E
2 – Battery positive terminal
When ignition switch is in START
position : Less than 0.5 V
PKIB8794E
Starter motor case – Battery negative terminal
When ignition switch is in
START position : Less than 0.2 V
PKIB8795E

STARTING SYSTEM SC-13
C
D E
F
G H
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J
L
M A
B
SC
Revision: 2006 December 2006 FX35/FX45
DIAGNOSTIC PROCEDURE 2
Check “S” Connector Circuit
1. CHECK POWER SUPPLY FOR STARTER MOTOR “S” TERMINAL
1. Remove fuel pump fuse.
2. Crank or start the engine (where possible) until the fuel pressure is released.
3. Turn ignition switch OFF.
4. Disconnect starter motor connector.
5. Check voltage between starter motor harness connector E312 (VK45DE) or F33 (VQ35DE) terminal 1 and ground.
OK or NG
OK >> “S” connector circuit is OK. Further inspection neces- sary. Refer to SC-11, "
Trouble Diagnosis with Starting/
Charging System Tester (Starting)" .
NG >> Check the following.

40A fusible link (letter F , located in fuse and fusible link box)

Ignition switch

Starter relay (within the IPDM E/R)

Harness for open or short
MINIMUM SPECIFICATION OF CRANKING VOLTAGE REFERENCING COOLANT TEMPERA-
TURE
1 – Ground
When ignition switch is in
START position : Battery voltage
PKIB8796E
Engine coolant temperature Voltage [V]
− 30 °C to −20 °C ( −22 °F to −4°F) 8.4
− 19 °C to −10 °C ( −2°F to 14 °F) 8.9
− 9°C to 0 °C (16 °F to 32 °F) 9.3
More than 1 °C (More than 34 °F) 9.7