2007 INFINITI M35 battery

PG-1
POWER SUPPLY, GROUND & CIRCUIT ELEMENTS
K ELECTRICAL
CONTENTS
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PG
Revision: 2007 April2007 M35/M45
POWER SUPPLY, GROUND & CIRCUIT ELEMENTS
POWER SUPPLY ROUTING CIRCUIT ...................... 3
Schematic ................................................................ 3
Wiring Diagram — POWER — ................................. 5
BATTERY POWER SUPPLY — IGNITION SW.
IN ANY POSITION ................................................ 5
ACCESSORY POWER SUPPLY — IGNITION
SW. IN “ACC” OR “ON” ........................................ 11
IGNITION POWER SUPPLY — IGNITION SW.
IN “ON” AND/OR “START” .................................. 12
Fuse ....................................................................... 17
Fusible Link ............................................................ 17
Circuit Breaker ....................................................... 17
IPDM E/R (INTELLIGENT POWER DISTRIBUTION
MODULE ENGINE ROOM) ...................................... 18
System Description ................................................ 18
SYSTEMS CONTROLLED BY IPDM E/R ........... 18
CAN COMMUNICATION LINE CONTROL ......... 18
IPDM E/R STATUS CONTROL ........................... 19
CAN Communication System Description .............. 19
CAN Communication Unit ...................................... 19
Function of Detecting Ignition Relay Malfunction ... 19
CONSULT-II Function (IPDM E/R) ......................... 20
CONSULT-II BASIC OPERATION ....................... 20
SELF-DIAG RESULTS ........................................ 20
DATA MONITOR ................................................. 21
CAN DIAG SUPPORT MNTR ............................. 22
ACTIVE TEST ..................................................... 22
Auto Active Test ..................................................... 23
DESCRIPTION .................................................... 23
OPERATION PROCEDURE ............................... 23
INSPECTION IN AUTO ACTIVE TEST MODE ... 24
Schematic .............................................................. 27
IPDM E/R Terminal Arrangement ........................... 28
Check IPDM E/R Power Supply and Ground Circuit ... 29
Inspection with CONSULT-II (Self-Diagnosis) ........ 30
Removal and Installation of IPDM E/R ................... 31
REMOVAL ........................................................... 31
INSTALLATION ................................................... 31
PDU (POWER DISTRIBUTION UNIT) ...................... 32
Component Parts and Harness Connector Location ... 32System Description ................................................. 32
PUSH-BUTTON IGNITION SWITCH OPERAT-
ING PROCEDURE .............................................. 32
Wiring Diagram — PDU — ..................................... 34
Terminals and Reference Value for Intelligent Key
Unit ......................................................................... 36
Terminals and Reference Value for PDU ................ 37
Work Flow ............................................................... 37
Trouble Diagnosis Symptom Chart ......................... 38
Check CAN Communication System ...................... 38
Check PDU Power Supply and Ground Circuit ...... 39
Check Push-Button Ignition Switch (Ignition Switch)
System .................................................................... 39
Check Push-Button Ignition Switch (Indicator Cir-
cuit) System ............................................................ 41
PDU Communication Circuit System 1 ................... 42
PDU Communication Circuit System 2 ................... 43
Removal and Installation of PDU ............................ 44
REMOVAL ........................................................... 44
INSTALLATION ................................................... 44
GROUND ................................................................... 45
Ground Distribution ................................................. 45
MAIN HARNESS ................................................. 45
ENGINE ROOM HARNESS ................................ 50
ENGINE CONTROL HARNESS/VQ ENGINE
MODELS ............................................................. 54
ENGINE CONTROL HARNESS/VK ENGINE
MODELS ............................................................. 55
BODY HARNESS ................................................ 56
BODY NO. 2 HARNESS ..................................... 60
HARNESS ................................................................. 62
Harness Layout ...................................................... 62
HOW TO READ HARNESS LAYOUT ................. 62
OUTLINE ............................................................. 63
MAIN HARNESS ................................................. 64
NAVIGATION SUB-HARNESS & A/C HARNESS ... 69
ENGINE ROOM HARNESS ................................ 70
ENGINE CONTROL HARNESS (VQ ENGINE) ... 77
ENGINE CONTROL HARNESS (VK ENGINE) ... 80
BODY HARNESS ................................................ 83

POWER SUPPLY ROUTING CIRCUIT
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Revision: 2007 April2007 M35/M45
Wiring Diagram — POWER —NKS004DY
BATTERY POWER SUPPLY — IGNITION SW. IN ANY POSITION
TKWT5163E

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PG-29
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Revision: 2007 April2007 M35/M45
Check IPDM E/R Power Supply and Ground CircuitNKS004EA
1. CHECK FUSES AND FUSIBLE LINKS
Check for blown fuses and fusible link.
OK or NG
OK >> GO TO 2.
NG >> If fuse or fusible link is blown, be sure to eliminate cause of malfunction before installing new fuse
or fusible link.
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector.
3. Check voltage between IPDM E/R harness connector and
ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK GROUND CIRCUIT
1. Disconnect IPDM E/R harness connectors.
2. Check continuity between IPDM E/R harness connectors and
ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
Terminal No. Power source Fuse and fusible link No.
1
BatteryE
2C
—71
78
Te r m i n a l s
Voltage (+) (-)
IPDM E/R connector Terminal
Ground
E31
Battery voltage
2
PKIB6562E
IPDM E/R connector Terminal
GroundContinuity
E8 38
E951
Ye s
54
PKIC0906E

PG-36
PDU (POWER DISTRIBUTION UNIT)
Revision: 2007 April2007 M35/M45
Terminals and Reference Value for Intelligent Key UnitNKS004EG
Termi-
nalWire
ColorItemSignal
Input/
OutputCondition
Voltage (V)
Approx. Ignition
Switch
PositionOperation or Conditions
1 SB Power source (Fuse) Input LOCK — Battery voltage
3 Y IPDM E/R status signal Output —Engine starting (During Cranking) 5
Other than above 2
8WPush-button ignition
switch
(LOCK LED)InputLOCKPush-button ignition switch is in LOCK
position0
—Push-button ignition switch is in any posi-
tion
(Except LOCK position)1.2
9LPush-button ignition
switch
(ACC LED)InputACCPush-button ignition switch is in ACC posi-
tion0
—Push-button ignition switch is in any posi-
tion
(Except ACC position)1.2
10 VPush-button ignition
switch
(ON LED)InputONPush-button ignition switch is in ON posi-
tion0
—Push-button ignition switch is in any posi-
tion
(Except ON position)1.2
20 B Ground — — — 0
30 L/W Ignition switch (ACC) Input ACC — Battery voltage
31 GR Ignition switch (ON) Input ON — Battery voltage
34 R PDU feedback signal Output LOCKPush-button ignition switch is in LOCK
state, 30 seconds after all doors closed1
Other than above 0
36 W Ignition signal 2 InputLOCK — Battery voltage
ACC — Battery voltage
ON — 0
37 P CAN-LInput/
Output—— —
38 L CAN-HInput/
Output—— —
39 BR/W Push switch Input —Depress push-button ignition switch 0
Other than above Battery voltage
40 B Ground — — — 0
41 Y Power source (Fuse) Input LOCK — Battery voltage
42 P PDU wake up signal Output LOCKPush-button ignition switch is in LOCk
state, 30 seconds after all doors closedBattery voltage
Other than above 0
44 BR Ignition signal 1 InputLOCK — Battery voltage
ACC — Battery voltage
ON — 0
45 SB ACC signal InputLOCK — Battery voltage
ACC — 0
ON — 0
56 B Ground — — — 0

PDU (POWER DISTRIBUTION UNIT)
PG-37
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Revision: 2007 April2007 M35/M45
Terminals and Reference Value for PDUNKS004EH
Work FlowNKS004EI
1. Check the symptom and customer's requests.
2. Understand outline of system. Refer to PG-32, "
System Description" .
3. Confirm that Intelligent Key system operates normally.
Refer to BL-24, "
POWER DOOR LOCK SYSTEM" .
4. Repair or replace any malfunctioning parts.
Refer to PG-38, "
Trouble Diagnosis Symptom Chart" .
5. INSPECTION END
57 L Power source (Fuse) Input LOCK — Battery voltage
72 B Ground — — — 0 Te r m i -
nalWire
ColorItemSignal
Input/
OutputCondition
Voltage (V)
Approx. Ignition
Switch
PositionOperation or Conditions
Termi-
nalWire
ColorItemSignal
Input/
OutputCondition
Voltage (V)
Approx. Ignition
Switch
PositionOperation or Conditions
1 P PDU wake up signal Output LOCKPush-button ignition switch is in LOCK
state, 30 seconds after all doors closeBattery voltage
Other than above 0
4 BR Ignition signal 1 OutputLOCK — Battery voltage
ACC — Battery voltage
ON — 0
5 W Ignition signal 2 OutputLOCK — Battery voltage
ACC — Battery voltage
ON — 0
8 SB ACC signal OutputLOCK — Battery voltage
ACC — 0
ON — 0
10 B Ground — — — 0
11 Y IPDM E/R status signal Input —Engine starting (During Cranking) 5
Other than above 2
12 R PDU feedback signal Input LOCKPush-button ignition switch is in LOCK
state, 30 seconds after all doors close1
Other than above 0
14 SB Power source (Fuse) Input LOCK — Battery voltage
15 L Power source (F/L) Input LOCK — Battery voltage
16 W ACC power output OutputLOCK — 0
ACC — Battery voltage
ON — Battery voltage
17 G Power source (Fuse) Input LOCK — Battery voltage
18 BR ON power output OutputLOCK — 0
ACC — 0
ON — Battery voltage

PDU (POWER DISTRIBUTION UNIT)
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Revision: 2007 April2007 M35/M45
Check PDU Power Supply and Ground CircuitNKS004EL
1. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect PDU connector.
3. Check voltage between PDU harness connector and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace PDU power supply circuit.
2. CHECK GROUND CIRCUIT
Check continuity between PDU harness connector and ground.
OK or NG
OK >> Power supply and ground circuits are OK.
NG >> Repair or replace the PDU ground circuit.
Check Push-Button Ignition Switch (Ignition Switch) SystemNKS004EM
1. CHECK PUSH-BUTTON IGNITION SWITCH
1. Turn ignition switch OFF.
2. Disconnect Intelligent Key unit connector.
3. Check continuity between Intelligent Key unit harness connector
and ground.
OK or NG
OK >> Push-button ignition switch system is OK.
NG >> GO TO 2.
PDU connectorTe r m i n a l
Voltage (V)
(Approx.)
(+) (-)
M3114
Ground Battery voltage 15
17
PIIB6115E
PDU connector Terminal Continuity
M30 10 Ground Yes
PIIB6116E
Intelligent
Key unit
connectorTerminal Condition Continuity
M32 39 GroundPush-button ignition
switch is pressedYe s
Push-button ignition
switch is releasedNo
PIIB6117E

PDU (POWER DISTRIBUTION UNIT)
PG-41
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Revision: 2007 April2007 M35/M45
Check Push-Button Ignition Switch (Indicator Circuit) SystemNKS004EN
1. CHECK PUSH-BUTTON IGNITION SWITCH INDICATOR SYSTEM
1. Turn ignition switch OFF.
2. Check voltage between Intelligent Key unit connector and
ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace push-button ignition switch.
2. PUSH-BUTTON IGNITION SWITCH INDICATOR POWER SUPPLY SIGNAL
1. Turn ignition switch OFF.
2. Disconnect push-button ignition switch.
3. Check voltage between push-button ignition switch connector
and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace push-button ignition switch.
Intelligent
Key unit
connectorTerminal
Push-button ignition
switch conditionVoltage (V)
(Approx)
(+) (-)
M328
Ground part of
push-button
ignition switchLOCK position 0
Except LOCK position 1.2
9ACC position 0
Except ACC position 1.2
10ON position 0
Except ON position 1.2
PIIB6121E
Push-button ignition
switch connectorTerminal
Voltage (V)
(Approx)
(+) (-)
M27 8 Ground Battery voltage
PIIB6122E

PG-42
PDU (POWER DISTRIBUTION UNIT)
Revision: 2007 April2007 M35/M45
3. PUSH-BUTTON IGNITION SWITCH INDICATOR GROUND CIRCUIT
1. Disconnect Intelligent Key unit connector.
2. Check continuity between Intelligent Key unit connector and
push-button ignition switch connector.
3. Check continuity between push-button ignition switch connector.
OK or NG
OK >> Check harness condition.
NG >> Repair or replace harness.
PDU Communication Circuit System 1NKS004EO
1. CHECK PDU COMMUNICATION CIRCUIT 1
1. Turn ignition switch OFF.
2. Check voltage between Intelligent Key unit connector and
ground.
OK or NG
OK >> Check harness condition.
NG >> GO TO 2.
AB
Continuity
Intelligent Key
unit connectorTe r m i n a lPush-button
ignition switch
connectorTerminal
M328
M275
Ye s 96
10 7
Push-button ignition
switch connectorTerminal Continuity
M275
Ground No 6
7
PIIB6123E
Intelligent Key
unit connectorTerminal ConditionVoltage (V)
(Approx)
M3342 GroundDriver side door is opened
(PDU wake up mode)0
Push-button ignition switch is in
lock state, 30 seconds after all
doors are closed (PDU sleep
mode)Battery
voltage
45 GroundPush-button ignition switch is in
LOCK positionBattery
voltage
Push-button ignition switch is in
ACC position0
Push-button ignition switch is in
ON position0
PIIB6124E