ground INFINITI M35 2006 Factory Service Manual

STARTING SYSTEM
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Revision: 2006 January2006 M35/M45
DIAGNOSTIC PROCEDURE 1
Check “B” Terminal Circuit
CAUTION:
Perform diagnosis under the condition that engine cannot start by the following procedure.
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 connection is clean
and tight.
3. Check voltage between starter motor “B” terminal 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)
Check voltage between starter motor battery positive terminal and
starter motor “B” terminal.
OK or NG
OK >> GO TO 3.
NG >> Check harness between the battery and the starter motor for poor continuity.
3. CHECK GROUND CIRCUIT STATUS (VOLTAGE DROP TEST)
Check voltage between starter motor case and battery negative ter-
minal.
OK or NG
OK >> “B” terminal circuit is OK. Further inspection necessary.
Refer to SC-14, "
WORK FLOW" .
NG >> Check the starter motor case and ground for poor conti-
nuity.
Terminals
Voltage (Approx.) (+)
(–)
Starter motor
“B” terminalTerminal
E203 2 Ground Battery voltage
PKIB8793E
Terminals
ConditionVoltage
(Approx.)
(+)(–)
Starter motor
“B” terminalTerminal
Battery positive
terminalE203 2 When the ignition
switch is in
START positionLess than
0.5 V
PKIB8794E
Terminals
Condition Voltage (Approx.)
(+) (–)
Starter motor
caseBattery negative
terminalWhen the ignition
switch is in START
positionLess than 0.2 V
PKIB8795E

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STARTING SYSTEM
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DIAGNOSTIC PROCEDURE 2
Check “S” Connector Circuit
CAUTION:
Perform diagnosis under the condition that engine cannot start by the following procedure.
1. Remove fuel pump fuse.
2. Crank or start the engine (where possible) until the fuel pressure is released.
1. CHECK “S” CONNECTOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect starter motor connector.
3. Check voltage between starter motor harness connector and
ground.
OK or NG
OK >> “S” connector circuit is OK. Further inspection necessary. Refer to SC-14, "WORK FLOW" .
NG >> Check the following.
Ignition switch and PDU
IPDM E/R
Harness between starter motor and IPDM E/R
MINIMUM SPECIFICATION OF CRANKING VOLTAGE REFERENCING COOLANT TEMPERA-
TURE
Te r m i n a l s
ConditionVoltage
(Approx.) (+)
(–)
Starter motor
connectorTe r m i n a l
F9 (VQ35DE)
E210 (VK45DE)1 GroundWhen the ignition
switch is in
START positionBattery voltage
PKIB8796E
Engine coolant temperature [C (F)] Voltage [V]
30 to 20 (22 to 4) 8.6
19 to 10 (2 to 14) 9.1
9 to 0 (16 to 32) 9.5
More than 1 (More than 34) 9.9

CHARGING SYSTEM
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CHARGING SYSTEM PFP:00011
System Description NKS003NN
DESCRIPTION
The alternator provides DC voltage to operate the vehicle'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. 36, located in the fuse, fusible link and relay block (J/B)]
to alternator terminal 4 (“S” terminal).
“B” terminal supplies power to charge the battery and operate the vehicle's electrical system. Output voltage is
controlled by the IC regulator at terminal 4 (“S” terminal) detecting the input voltage.
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 12 for the charge warning lamp.
Ground is supplied at signal
to combination meter terminal 22
through alternator terminal 3 (“L” terminal).
Then power and ground are supplied, the charge warning lamp will illuminate.
When the alternator is providing sufficient 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.
Ground is supplied
to alternator terminal 2 (“E” terminal)
through grounds E222, E223 and E224. (VQ35DE)
through ground E212. (VK45DE)
MALFUNCTION INDICATOR
The IC regulator warning function activates to illuminate the 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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CHARGING SYSTEM
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PRELIMINARY INSPECTION
1. CHECK BATTERY TERMINALS CONNECTION
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 fuse and fusible link.
OK or NG
OK >> GO TO 3.
NG >> 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 EM-15, "
Checking Drive Belts" (VQ35DE) or EM-174, "Checking
Drive Belts" (VK45DE).
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 Battery/Starting/Charging
system test. Refer to SC-28, "
Trouble Diagnoses with Battery/Starting/Charging System Tester
(Charging)" .
Unit Power source (Power supply terminals) Fuse and fusible link No.
Alternator Battery (“S” terminal) 36
Combination meter Ignition switch ON (“L” terminal) 14

CHARGING SYSTEM
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2. CHECK “L” TERMINAL CIRCUIT (OPEN)
1. Disconnect alternator connector.
2. Apply ground to alternator harness connector terminal.
3. Check condition the charge warning lamp with the ignition
switch in the ON position.
OK or NG
OK >> Go to SC-31, "WORK FLOW" .
NG >> Check the following.
Harness for open between combination meter and alternator
Harness for open between combination meter and fuse
Charge warning lamp (Combination meter)
DIAGNOSTIC PROCEDURE 2
Check “L” Terminal Circuit (Short)
1. CHECK “L” TERMINAL CIRCUIT (SHORT)
1. Turn ignition switch OFF.
2. Disconnect alternator connector.
3. Turn ignition switch ON.
Charge warning lamp should illuminate?
YES >> Check the following.
Harness for short between combination meter and alternator
Charge warning lamp (Combination meter)
NO >> Go to SC-31, "
WORK FLOW" .
DIAGNOSTIC PROCEDURE 3
Check “S” Terminal Circuit
1. CHECK “S” TERMINAL CONNECTION
1. Turn ignition switch OFF.
2. Check if “S” terminal is clean and tight.
OK or NG
OK >> GO TO 2.
NG >> Repair “S” terminal connection. Confirm repair by performing complete Battery/Starting/Charging
system test. Refer to SC-28, "
Trouble Diagnoses with Battery/Starting/Charging System Tester
(Charging)" .
Alternator
connectorTerminal
GroundCondition
Ignition switch
positionCharge warning
lamp
F20 (VQ35DE)
E209 (VK45DE)3 ON illuminate
PKIB8807E

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CHARGING SYSTEM
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2. CHECK “S” TERMINAL CIRCUIT
Check voltage between alternator harness connector and ground.
OK or NG
OK >> Go to SC-31, "WORK FLOW" .
NG >> Check harness for open between alternator and fuse.
DIAGNOSTIC PROCEDURE 4
Check “B” Terminal Circuit
1. CHECK “B” TERMINAL CONNECTION
1. Turn ignition switch OFF.
2. Check if “B” terminal is clean and tight.
OK or NG
OK >> GO TO 2.
NG >> Repair “B” terminal connection. Confirm repair by performing complete Battery/Starting/Charging
system test. Refer to SC-28, "
Trouble Diagnoses with Battery/Starting/Charging System Tester
(Charging)" .
2. CHECK “B” TERMINAL CIRCUIT
Check voltage between alternator “B” terminal and ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness for open between alternator and fusible
link.
3. CHECK “B” TERMINAL CONNECTION (VOLTAGE DROP TEST)
1. Start engine, then engine running at idle and warm.
2. Check voltage between battery positive terminal and alternator
“B” terminal.
OK or NG
OK >> Go to SC-31, "WORK FLOW" .
NG >> Check harness between battery and alternator for poor continuity.
Terminals
Voltage (Approx.) (+)
(–)
Alternator connector Terminal
F20 (VQ35DE)
E209 (VK45DE)4 Ground Battery voltage
PKIB8808E
Terminals
Voltage (Approx.) (+)
(–)
Alternator “B” terminal Terminal
E205 [VQ35DE (2WD)]
E202 [VQ35DE (AWD)/VK45DE]1 Ground Battery voltage
PKIB8809E
Te r m i n a l s
Voltage
(Approx.)
(+)(–)
Alternator “B” terminal Terminal
Battery positive
terminalE205 [VQ35DE (2WD)]
E202 [VQ35DE (AWD)/VK45DE]1 Less than 0.2 V
PKIB8810E

CHARGING SYSTEM
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Power Generation Voltage Variable Control System Operation InspectionNKS003NQ
CAUTION:
For this model, the battery current sensor that is installed to the battery cable at the negative ter-
minal measures the charging/discharging current of the battery, and performs various controls. If
the electrical component or the ground wire is connected directly to the battery terminal, the cur-
rent other than that being measured with the battery current sensor is charging to or discharging
from the battery. This condition causes the malfunction of the control, and then the battery dis-
charge may occur. Never connect the electrical component or the ground wire directly to the bat-
tery terminal.
When performing this inspection, always use the charged battery that completed the battery
inspection. (When the charging rate of the battery is low, the response speed of the voltage
change will become slow. This is a cause of an incorrect inspection.)
INSPECTION PROCEDURE
1. CHECK ECM (CONSULT-II)
Perform ECM self-diagnosis with CONSULT-II. Refer to EC-133, "
CONSULT-II Function (ENGINE)"
(VQ35DE) or EC-846, "CONSULT-II Function (ENGINE)" (VK45DE).
Self
-diagnostic results content
No malfunction detected>> GO TO 2.
Malfunction detected>> Check applicable parts, and repair or replace corresponding parts.
2. CHECK OPERATION OF POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM
1. Connect CONSULT-II and start the engine.
2. The selector lever is in “P” or “N” position and all of the electric
loads and A/C, etc. are turned OFF.
3. Select “ALTERNATOR DUTY” at “ACTIVE TEST” of “ENGINE”,
and then check the value of “BATTERY VOLT” monitor when
DUTY value of “ALTERNATOR DUTY” is set to 40.0 %.
4. Check the value of “BATTERY VOLT” monitor when DUTY value
of “ALTERNATOR DUTY” is set to 80.0%.
OK or NG
OK >> INSPECTION END
NG >> GO TO 3. (The charging condition of the battery should
be normal.)
3. CHECK IPDM E/R (CONSULT-II)
Perform IPDM E/R self-diagnosis with CONSULT-II. Refer to PG-20, "
CONSULT-II Function (IPDM E/R)" .
Self
-diagnostic results content
No malfunction detected>> GO TO 4.
Malfunction detected>> Check applicable parts, and repair or replace corresponding parts. “BATTERY VOLT”
2 seconds after setting the
DUTY value of “ALTERNA-
TOR DUTY” to 40.0 %: 12 - 13.6 V
PKIB4503E
“BATTERY VOLT”
20 seconds after setting
the DUTY value of “ALTER-
NATOR DUTY” to 80.0 %: +0.5 V or more against
the value of “BATTERY
VOLT” monitor when
DUTY value is 40.0 %
PKIB4504E

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CHARGING SYSTEM
Revision: 2006 January2006 M35/M45
4. CHECK HARNESS BETWEEN ALTERNATOR AND IPDM E/R
1. Turn ignition switch OFF.
2. Disconnect alternator connector and IPDM E/R connector.
3. Check continuity between alternator harness connector (A) and
IPDM E/R harness connector (B).
4. Check continuity between alternator harness connector (A) and
ground.
OK or NG
OK >> Replace IPDM E/R.
NG >> Repair harness or connector between IPDM E/R and alternator.
AB
Continuity
Connector Terminal Connector Terminal
F20 (VQ35DE)
E209 (VK45DE)5 E8 33 Yes
A
GroundCondition
Connector Terminal
F20 (VQ35DE)
E209 (VK45DE)5No
PKIB8811E

CHARGING SYSTEM
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VK45DE ENGINE MODELS
Removal
1. Disconnect the battery cable from the negative terminal.
2. Remove engine front undercover, using power tools.
3. Remove “B” terminal nut (1).
4. Disconnect alternator connector (2).
5. Remove alternator ground harness mounting bolt (3).
6. Remove the harness bracket bolts (A).
7. Remove air intake duct. Refer to EM-177, "
AIR CLEANER AND AIR DUCT" .
8. Remove alternator, water pump and A/C compressor belt. Refer to EM-174, "
DRIVE BELTS" .
9. Remove power steering oil reservoir tank (1) from the bracket,
engine coolant reservoir tank (2) and vacuum tank (3).
10. Remove the harness clips (A).
11. Remove alternator mounting bolts (B), using power tools.
12. Remove alternator assembly upward.
1. Alternator ground harness 2. “B” terminal nut 3. “B” terminal harness
4. Alternator nut 5. Alternator bracket 6. Alternator
7. Alternator mounting bolt 8. Alternator stay
: Nꞏm (kg-m, in-lb) : Nꞏm (kg-m, ft-lb) : Engine front
PKIB8812E
PKIB8813E
PKIB8814E

SERVICE DATA AND SPECIFICATIONS (SDS)
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SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
BatteryNKS003NT
StarterNKS003NU
AlternatorNKS003NV
*: Adjustment range of power generation voltage variable control is 11.4 - 15.6 V. Ty p e110D26L
20 hour rate capacity [V - Ah] 12 - 75
Cold cranking current (For reference value) [A] 720
Applied modelVK45DE VQ35DE VQ35DE
2WD AWD
Ty p eM2T85771 S114-880 S114-881
MITSUBISHI
makeHITACHI make
Reduction gear type
System voltage [V] 12
No-loadTerminal voltage [V] 11
Current [A] Less than 145 Less than 90
Revolution [rpm] More than 3,300 More than 2,880
Minimum diameter of commutator [mm (in)] 31.4 (1.236) 28.0 (1.102)
Minimum length of brush [mm (in)] 11.0 (0.433) 10.5 (0.413)
Brush spring tension [N (kg, lb)]26.7 - 36.1
(2.72 - 3.68,
6.80 - 8.12)16.2 (1.65, 3.6)
Clearance between bearing metal and armature shaft [mm (in)] Less than 0.2 (0.008)
Clearance between pinion front edge and pinion stopper [mm (in)]0.5 - 2.0
(0.020 - 0.079)0.3 - 2.5 (0.012 - 0.098)
Applied model VK45DE VQ35DE
Ty p eA3TJ0591 A3TJ0691
MITSUBISHI make
Nominal rating [V - A] 12 -150
Ground polarityNegative
Minimum revolution under no-load (When 13.5 V is
applied)[rpm] Less than 1,300
Hot output current (When 13.5 V is applied) [A/rpm]More than 35/1,300
More than 105/2,500
More than 136/5,000
Regulated output voltage [V] 14.1 - 14.7 *
Minimum length of brush [mm (in)] More than 5.00 (0.197)
Brush spring pressure [N (g, oz)] 4.1 - 5.3 (418 - 540, 14.8 - 19.1)
Slip ring minimum outer diameter [mm (in)] More than 22.1 (0.870)
Rotor (Field coil) resistance [
] 1.6 - 2.0