2008 INFINITI FX35 no start

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< SERVICE INFORMATION >
STARTING SYSTEM
1. Remove fuel pump fuse.
2. Crank or start the engine (where possible) until the fuel pressure is released.
1.CHECK “B” TERMINAL CIRCUIT
1. Turn ignition switch OFF.
2. Make sure that starter motor “B” terminal E313 terminal 2 connection is clean and tight.
3. 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 STATUS (VOLTAGE DROP TEST)
1. Shift A/T selector lever to “P” or “N” position.
2. 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 GROUND CIRCUIT STATUS (VOLTAGE DROP TEST)
1. Turn ignition switch OFF.
2. Shift A/T selector lever to “P” or “N” position.
3. 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-10, "
Trouble Diagnosis with Starting/Charg-
ing System Tester (Starting)".
NG >> Check starter motor case and ground for poor continuity.
DIAGNOSTIC PROCEDURE 2
Check “S” Connector Circuit
CAUTION:
Perform diagnosis under the condi tion that engine cannot start by the following procedure.
1. Remove fuel pump fuse.
2. Crank or start the engine (where possi ble) until the fuel pressure is released.
1.CHECK “S” CONNECTOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect starter motor connector.
3. Shift A/T selector lever to “P” or “N” position. 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
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

STARTING SYSTEMSC-13
< SERVICE INFORMATION >
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4. 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-10, "
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 VO LTAGE REFERENCING COOLANT TEMPERA-
TURE
Removal and Installation (VK45DE Engine Models)INFOID:0000000001328249
REMOVAL
1. Disconnect the battery cable from the negative terminal.
2. Remove engine front and rear undercover, using power tools. 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
1. Starter motor 2. Starter motor mounting bolt 3. B terminal harness
4. B terminal nut 5. S connector 6. Cylinder block
: N·m (kg-m, ft-lb) : N·m (k g-m, ft-in) : Engine front
PKID1545E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

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< SERVICE INFORMATION >
STARTING SYSTEM
3. Disconnect “S” connector.
4. Remove “B” terminal nut.
5. Remove starter motor mounting bolts.
6. Loosen A/T fluid cooler tube clip bolts. Refer to AT-243,
"Removal and Installation (AWD Models)".
7. Remove starter motor downward from the vehicle.
INSTALLATION
Installation is the reverse order of removal.
CAUTION:
Be sure to tighten “B” terminal nut carefully.
Removal and Installation [V Q35DE Engine Models (2WD)]INFOID:0000000001328250
REMOVAL
1. Disconnect the battery cable from the negative terminal.
2. Remove engine rear undercover, using power tools.
3. Disconnect “S” connector.
4. Remove “B” terminal nut.
5. Remove starter motor mounting bolts and harness clip bracket,
using power tools.
6. Remove starter motor downward from the vehicle.
PKIA2810E
1. Starter motor mounting bolt 2. Harness clip bracket 3. S connector
4. B terminal nut 5. B termin al harness 6. Starter motor
7. Oil pan : N·m (kg-m, ft-lb) : N·m (kg-m, ft-in) : Engine front
PKIB8799E
PKIA2812E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

STARTING SYSTEMSC-15
< SERVICE INFORMATION >
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INSTALLATION
Installation is the reverse order of removal.
CAUTION:
Be sure to tighten “B” terminal nut carefully.
Removal and Installation [V Q35DE Engine Models (AWD)]INFOID:0000000001328251
REMOVAL
1. Disconnect the battery cabl e from the negative terminal.
2. Remove engine front and rear undercover, using power tools.
3. Disconnect “S” connector.
4. Remove “B” terminal nut.
5. Remove starter motor mounting bolts.
6. Remove starter motor downward from the vehicle.
INSTALLATION
Installation is the reverse order of removal.
CAUTION:
Be sure to tighten “B” terminal nut carefully.
Disassembly and AssemblyINFOID:0000000001328252
VK45DE ENGINE MODELS (M002T85075)
1. Starter motor mounting bolt 2. Oil pan 3. Starter motor
4. B terminal harness 5. B terminal nut 6. S connector
: N·m (kg-m, ft-lb) : N·m (k g-m, ft-in) : Engine front
PKID1546E
PKIA2844E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

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< SERVICE INFORMATION >
STARTING SYSTEM
VQ35DE ENGINE MODELS (2WD) (S114-880A)
1. Nut 2. Magnetic switch assembly 3. Adjusting plate
4. Packing 5. Plate 6. Shift lever
7. Front bracket assembly 8. Yoke assembly 9. Armature assembly
10. Washer 11. Rear bearing 12. Brush holder assembly
13. Rear bracket assembly 14. Cover 15. Packing
16. Ball 17. Shaft gear assembly 18. Clutch gear assembly
19. Pinion stopper 20. Stopper clip (H): High-temperature grease point
PKID0693E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

STARTING SYSTEMSC-17
< SERVICE INFORMATION >
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VQ35DE ENGINE MODELS (AWD) (S114-881A)
1. Magnetic switch assembly 2. Dust cover kit 3. Shift lever set
4. Center bracket (A) 5. Yoke assembly 6. Armature assembly
7. Brush holder assembly 8. Thrust washer 9. Rear cover assembly
10. Shaft gear assembly 11. Packing 12. Thrust washer
13. Center bracket (P) 14. E-ring 15. Pinion assembly
16. Ball bearing 17. Caul 18. Gear case assembly (H): High-temperatu re grease point
PKID0694E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

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< SERVICE INFORMATION >
STARTING SYSTEM
Inspection After Disassembly
INFOID:0000000001328253
PINION/CLUTCH CHECK
1. Inspect pinion teeth.  Replace pinion if teeth are worn or damaged. (Also check condition of ring gear teeth.)
2. Inspect reduction gear teeth.  Replace reduction gear if teeth are worn or dam aged. (Also check condition of armature shaft gear
teeth.)
3. Check to see if pinion locks in one directi on and rotates smoothly in the opposite direction.
 If it locks or rotates in both directions , or unusual resistance is evident, replace.
1. Magnetic switch assembly 2. Dust cover kit 3. Shift lever set
4. Center bracket (A) 5. Yoke assembly 6. Armature assembly
7. Brush holder assembly 8. Thrust washer 9. Rear cover assembly
10. Shaft gear assembly 11. Packing 12. Thrust washer
13. Center bracket (P) 14. E-ring 15. Pinion assembly
16. Ball bearing 17. Caul 18. Gear case assembly
(H): High-temperatu re grease point
PKID0695E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

CHARGING SYSTEMSC-19
< SERVICE INFORMATION >
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CHARGING SYSTEM
System DescriptionINFOID:0000000001328254
The alternator provides DC voltage to operate the vehi cle's electrical system and to keep the battery charged.
The voltage output is controlled by the IC regulator.
Power is supplied at all times
 through 10A fuse (No. 33, located in the fuse and fusible link block)
 to alternator terminal 4 (“S” terminal).
“B” Terminal supplies power to charge the battery and oper ate the vehicle's electrical system. Output voltage
is controlled by the IC regulator at terminal 4 (“S” terminal) detecting the input voltage.
The charging circuit is protected by the 120A fusible link (VK45DE and VQ35DE AWD).
The alternator is grounded to the engine block.
With the ignition switch in the ON or START position, power is supplied
 through 10A fuse [No. 14, located in the fuse block (J/B)]
 to combination meter terminal 7 for the charge warning lamp.
Ground is supplied
 to combination meter terminal 2
 through alternator terminal 3 (“L” terminal)
 to alternator terminal 2 (“E” terminal) (VK45DE) or through case ground (VQ35DE)
 through ground E304 (VK45DE).
With power and ground supplied, the charge warning lamp will illuminate. When the alternator is providing suf-
ficient voltage with the engine running, the ground is opened and the charge warning lamp will go off.
If the charge warning lamp illuminates with the engine running, a malfunction is indicated.
MALFUNCTION INDICATOR
The IC regulator warning function activates to illumi nate charge warning lamp, if any of the following symp-
toms occur while alternator is operating:
 Excessive voltage is produced.
 No voltage is produced.
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3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C