2006 INFINITI M35 starting

SC-8
BATTERY
Revision: 2006 January2006 M35/M45
7. Press “ENTER” to begin the test. Diagnosis results are dis-
played on the tester. Refer to SC-8, "
DIAGNOSTIC RESULT
ITEM CHART" .
8. Press “ENTER”, then test output code is displayed. Record the
test output code on the repair order.
9. Toggle back to the “DIAGNOSTIC SCREEN” for test results.
NOTE:
If necessary, the tester will ask the user to determine if the bat-
tery has just been charged. Choose the appropriate selection by
pressing the up or down arrow button and then press the
“ENTER” button to make the selection.
When testing a battery installed in a vehicle that has recently
been driven, select “BEFORE CHANGE”.
If the battery has just been slow charged due to a “CHARGE &
RETEST” decision by the tester, and the tester asks the user “BEFORE CHARGE/AFTER CHARGE”,
select “AFTER CHARGE”.
DIAGNOSTIC RESULT ITEM CHART
SEL407X
SEL576X
Diagnostic item Service procedure
GOOD BATTERYBattery is OK, go to “Trouble Diagnosis”, “STARTING SYSTEM”. Refer to SC-13, "
Trouble Diagnosis with
Battery/Starting/Charging System Tester (Starting)" .
REPLACE BATTERYReplace battery.
Before replacing battery, clean the battery cable clamps and battery posts. Perform battery test again with
Battery/Starting/Charging system tester. If second test result is “Replace Battery”, then do so. Perform bat-
tery test again to confirm repair.
BAD CELL-REPLACEReplace the battery. Perform battery test again with Battery/Starting/Charging system tester to confirm
repair.
GOOD-RECHARGEPerform the slow battery charging procedure. (Initial rate of charge is 10 A for 12 hours.) Perform battery
test again with Battery/Starting/Charging system tester.
CHARGE & RETESTPerform the slow battery charging. (Initial rate of charge is 10 A for 12 hours.)
Perform battery test again with Battery/Starting/Charging system tester to confirm repair.
NOTE:
If the tester asks the user “BEFORE CHARGE/AFTER CHARGE”, select “AFTER CHARGE”.

SC-10
STARTING SYSTEM
Revision: 2006 January2006 M35/M45
STARTING SYSTEM PFP:00011
System Description NKS003NI
Power is supplied at all times
through 15A fuse (No. 78, located in the IPDM E/R)
to CPU of IPDM E/R,
through 15A fuse (No. 71, located in the IPDM E/R)
to CPU of IPDM E/R.
Ground is supplied
to IPDM E/R terminals 38 and 51
from grounds E22 and E43.
When the selector lever in the P or N position, power is supplied
from TCM, and through A/T assembly terminal 9
to IPDM E/R terminal 53.
And then provided that IPDM E/R receives a starter relay ON signal with CAN communication, starter relay is
energized.
With the ignition switch in the START position, power is supplied
through IPDM E/R terminal 3
to starter motor terminal 1.
The starter motor plunger closes and provides a closed circuit between the battery and starter motor. The
starter motor is grounded to the engine block. With power and ground supplied, cranking occurs and the
engine starts.

STARTING SYSTEM
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Revision: 2006 January2006 M35/M45
Wiring Diagram — START — NKS003NJ
VQ35DE ENGINE MODELS
TKWT3232E

SC-12
STARTING SYSTEM
Revision: 2006 January2006 M35/M45
VK45DE ENGINE MODELS
TKWT3233E

STARTING SYSTEM
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Revision: 2006 January2006 M35/M45
Trouble Diagnosis with Battery/Starting/Charging System Tester (Starting)NKS003NK
NOTE:
To ensure a complete and thorough diagnosis, the battery, starter and alternator test segments must be done
as a set from start to finish.
1. Turn off all loads on the vehicle electrical system.
2. Perform battery test with Battery/Starting/Charging system
tester. Refer to SC-7, "
Trouble Diagnosis with Battery/Starting/
Charging System Tester (Battery)" .
3. Press “ENTER” to begin the starting system test.
4. Start the engine.
5. Diagnostic result is displayed on the tester. Refer to SC-13,
"DIAGNOSTIC RESULT ITEM CHART" .
NOTE:
If the starter performs normally but the engine does not start,
perform engine diagnosis.
For intermittent “NO CRANK” or “NO STARTER OPERA-
TION” incidents, go to DIAGNOSTIC PROCEDURE 2.
DIAGNOSTIC RESULT ITEM CHART
SEL408X
SEL409X
SEL410X
Diagnostic item Service procedure
CRANKING VOLTAGE NORMAL
Go to SC-14, "
WORK FLOW" .
CRANKING VOLTAGE LOW
CHARGE BATTERYPerform the slow battery charging procedure. (Initial rate of charge is 10A for 12 hours.) Perform
battery test again with Battery/Starting/Charging system tester. Refer to SC-7, "
Trouble Diagnosis
with Battery/Starting/Charging System Tester (Battery)" .
REPLACE BATTERYBefore replacing battery, clean the battery cable clamps and battery posts. Perform battery test
again with Battery/Starting/Charging system tester. Refer to SC-7, "
Trouble Diagnosis with Bat-
tery/Starting/Charging System Tester (Battery)" . If second test result is “REPLACE BATTERY”,
then do so. Perform battery test again to confirm repair.

SC-14
STARTING SYSTEM
Revision: 2006 January2006 M35/M45
WORK FLOW
*1SC-7, "Trouble Diagnosis with Bat-
tery/Starting/Charging System Tester
(Battery)"
*2SC-16, "MINIMUM SPECIFICATION
OF CRANKING VOLTAGE REFER-
ENCING COOLANT TEMPERA-
TURE"
*3SC-15, "Check “B” Terminal Circuit"
*4SC-16, "Check “S” Connector Cir-
cuit"
SKIB1369E

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

SC-16
STARTING SYSTEM
Revision: 2006 January2006 M35/M45
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