ipdm INFINITI FX35 2004 Service Manual

FUEL PUMP CIRCUIT
EC-1285
[VK45DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2004 November 2004 FX35/FX45
11 . CHECK FUEL PUMP POWER SUPPLY AND GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect “fuel level sensor unit and fuel pump” harness con-
nector.
3. Disconnect harness connector E206, B6.
4. Check harness continuity between “fuel level sensor unit and
fuel pump” terminal 1 and harness connector B6 terminal 4, “fuel
level sensor unit and fuel pump” terminal 3 and ground.
Refer to Wiring Diagram.
5. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 13.
NG >> GO TO 12.
12. DETECT MALFUNCTIONING PART
Check the following.

Harness connector B6

Harness for open or short between “fuel level sensor unit and fuel pump” and harness connector B6

Harness for open or short between “fuel level sensor unit and fuel pump” and ground
>> Repair open circuit or short to ground or short to power in harness or connectors.
13. CHECK FUEL PUMP
Refer to EC-1285, "
Component Inspection" .
OK or NG
OK >> GO TO 14.
NG >> Replace fuel pump.
14. CHECK INTERMITTENT INCIDENT
Refer to EC-784, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
OK or NG
OK >> Replace IPDM E/R.
NG >> Repair or replace harness or connectors.
Component InspectionABS00CEY
FUEL PUMP
1. Disconnect “fuel level sensor unit and fuel pump” harness connector.
2. Check resistance between “fuel level sensor unit and fuel pump”
terminals 1 and 3.Continuity should exist.
PBIB1507E
Resistance: Approximately 0.2 - 5.0Ω [at 25°C (77°F)]
SEC918C

EC-1292
[VK45DE]
ELECTRICAL LOAD SIGNAL
Revision: 2004 November 2004 FX35/FX45
ELECTRICAL LOAD SIGNALPFP:25350
DescriptionABS00CF4
The electrical load signal (Headlamp switch signal, rear window defogger switch signal, etc.) is transferred
through the CAN communication line from BCM to ECM via IPDM E/R.
CONSULT-II Reference Value in Data Monitor ModeABS00CF5
Specification data are reference values.
Diagnostic ProcedureABS00CF6
1. CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-I
1. Turn ignition switch ON.
2. Connect CONSULT-II and select “DATA MONITOR” mode.
3. Select “LOAD SIGNAL” and check indication under the following
conditions.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2. CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-II
Check “LOAD SIGNAL” indication under the following conditions.
OK or NG
OK >>INSPECTION END
NG >> GO TO 4.
3. CHECK REAR WINDOW DEFOGGER SYSTEM
Refer to GW-86, "
REAR WINDOW DEFOGGER" .
>>INSPECTION END
4. CHECK HEADLAMP SYSTEM
Refer to LT- 7 , "
HEADLAMP - XENON TYPE -" .
>>INSPECTION END
MONITOR ITEM CONDITION SPECIFICATION
LOAD SIGNAL

Ignition switch: ONRear window defogger switch is ON
and/or lighting switch is in 2ndON
Rear window defogger switch is OFF
and lighting switch is OFFOFF
Condition Indication
Rear window defogger switch ON ON
Rear window defogger switch OFF OFF
PBIB0103E
Condition Indication
Lighting switch ON at 2nd position ON
Lighting switch OFF OFF
PBIB0103E

CONSULT-II CHECKING SYSTEM
GI-37
C
D
E
F
G
H
I
J
K
L
MB
GI
Revision: 2004 November 2004 FX35/FX45
CONSULT-II CHECKING SYSTEMPFP:00000
DescriptionAAS000E7

CONSULT-II is a hand-held type tester. When it is connected with a diagnostic connector equipped on the
vehicle side, it will communicate with the control unit equipped in the vehicle and then enable various
kinds of diagnostic tests.

Refer to “CONSULT-II Software Operation Manual” for more information.
Function and System Application AAS000E8
x: Applicable
*1: IVIS (NATS) [INFINITI Vehicle immobilizer system (NISSAN Anti-Theft System)]
*2: This item is indicated, but it is what it does not use.Diagnostic test
modeFunction
ENGINE
A/T
AIR BAG
REARVIEW CAMERA
METER A/C AMP
BCM
AUTO DRIVE POS.
ABS (Including VDC)
AIR PRESSURE MONITOR
IVIS (NATS)*
1
IPDM E/R
ICC
ALL MODE AWD/4WD
INTELLIGENT KEY
Work supportThis mode enables a technician to adjust some devices
faster and more accurately by following the indications on
CONSULT-II.x- -x-xxxx-- x- x
Self-diagnostic
resultsSelf-diagnostic results can be read and erased quickly. x x x -xxxxxxxxxx
Trouble diagnostic
recordCurrent self-diagnostic results and all trouble diagnostic
records previously stored can be read.--x-----------
Data monitor Input/Output data in the ECM can be read. x x - x x - x x x - x x x x
CAN diagnosis
support monitorThe communication condition of CAN communication line
can be indicated.xx- - xxxxx- xxxx
Active testDiagnostic Test Mode in which CONSULT-II drives some
actuators apart from the ECMs and also shifts some param-
eters in a specified range.x- -- - xxx - -xxxx
DTC & SRT confir-
mationThe results of SRT (System Readiness Test) and the self-
diagnosis status/result can be confirmed.x- -- ----------
DTC work supportThe operating condition to confirm Diagnosis Trouble Codes
can be selected.xx-- ----------
ECU (ECM) part
numberECU (ECM) part number can be read. x x - x - x x x x - - x x x
ECU discrimi-
nated No.Classification number of a replacement ECU can be read to
prevent an incorrect ECU from being installed.-- x- ----------
Function testThis mode can show results of self-diagnosis of ECU with
either “OK” or “NG”. For engines, more practical tests
regarding sensors/switches and/or actuators are available.xxx- ---x------
Control unit initial-
izationAll registered ignition key IDs in NATS components can be
initialized and new IDs can be registered.-- -- -----x----
Configuration*
2— -----x------- -
Pin readIndividual control unit number can be read.
For future information, refer to “CONSULT-II operation man-
ual NATS-IVIS/NVIS” -- -- -----x----

GW-2Revision: 2004 November 2004 FX35/FX45DATE MONITOR ................................................. 41
Trouble Diagnosis Symptom Chart / With Front
Power Window Anti-pinch System .......................... 42
Trouble Diagnosis Symptom Chart / With Front and
Rear Power Window Anti-pinch System ................. 43
BCM Power Supply and Ground Circuit Check ...... 44
Power Window Main Switch Power Supply Circuit
Check ..................................................................... 45
Front Power Window Switch (Passenger Side)
Power Supply and Ground Circuit Check ............... 46
Rear Power Window Switch (LH or RH) Power Sup-
ply and Ground Circuit Check / With Front and Rear
Power Window Anti-pinch System .......................... 47
Front Power Window Motor (Driver Side) Circuit
Check ..................................................................... 48
Front Power Window Motor (Passenger Side) Cir-
cuit Check ............................................................... 49
Rear Power Window Motor (LH) Circuit Check / With
Front Anti-pinch Power Window System ................ 50
Rear Power Window Motor (RH) Circuit Check / With
Front Anti-pinch Power Window System ................ 52
Rear Power Window Motor (LH or RH) Circuit Check
/ With Front and Rear Power Window Anti-pinch
System .................................................................... 55
Limit Switch Circuit Check (Driver Side) ................. 56
Limit Switch Circuit Check (Passenger Side) ......... 57
Limit Switch Circuit Check (Rear LH or RH) / With
Front and Rear Anti-pinch System ......................... 59
Encoder Circuit Check (Driver Side) ....................... 61
Encoder Circuit Check (Passenger Side) ............... 63
Encoder Circuit Check (Rear LH or RH) / With Front
and Rear Power Window Anti-pinch System .......... 65
Door Switch Check ................................................. 67
Front Door Key Cylinder Switch Check .................. 69
Power Window Serial Link Check (Passenger Side) ... 71
Power Window Serial Link Check (Rear LH or RH)
/ With Front and Rear Power Window Anti-pinch
System .................................................................... 73
Power Window Lock Switch Check ........................ 73
SIDE WINDOW GLASS ............................................ 74
Removal and Installation ........................................ 74
REMOVAL ........................................................... 74
INSTALLATION .................................................... 75
FRONT DOOR GLASS AND REGULATOR ............. 76
Removal and Installation ........................................ 76
DOOR GLASS ..................................................... 76
REGULATOR ASSEMBLY .................................. 77
Disassembly and assembly .................................... 78
REGULATOR ASSEMBLY .................................. 78
Inspection after Installation ..................................... 78
SETTING OF LIMIT SWITCH .............................. 78
FITTING INSPECTION ........................................ 78
REAR DOOR GLASS AND REGULATOR ............... 80
Removal and Installation ........................................ 80
DOOR GLASS ..................................................... 80REGULATOR ASSEMBLY ................................... 81
Disassembly and assembly .................................... 82
REGULATOR ASSEMBLY ................................... 82
Inspection after Installation ..................................... 82
SETTING OF LIMIT SWITCH (WITH ANTI-
PINCH SYSTEM ONLY) ...................................... 82
FITTING INSPECTION ........................................ 83
INSIDE MIRROR ....................................................... 84
Wiring Diagram —I/MIRR— ................................... 84
Removal and Installation ......................................... 85
REMOVAL ............................................................ 85
INSTALLATION .................................................... 85
COMPASS ........................................................... 85
REAR WINDOW DEFOGGER .................................. 86
Component Parts and Harness Connector Location ... 86
System Description ................................................. 86
CAN Communication System Description .............. 88
CAN Communication Unit ....................................... 88
Schematic ............................................................... 89
Wiring Diagram —DEF— ........................................ 90
Terminal and Reference Value for BCM .................. 94
Terminal and Reference Value for IPDM E/R .......... 94
Work Flow ............................................................... 94
CONSULT-II Inspection Procedure ......................... 95
DATA MONITOR .................................................. 96
ACTIVE TEST ...................................................... 96
Trouble Diagnoses Symptom Chart ........................ 97
BCM Power Supply and Ground Circuit Check ...... 97
Rear Window Defogger Switch Circuit Check ......... 98
Rear Window Defogger Power Supply Circuit
Check ....................................................................100
Rear Window Defogger Circuit Check ..................102
Door Mirror Defogger Power Supply Circuit Check .103
Driver Side Door Mirror Defogger Circuit Check ...104
Passenger Side Door Mirror Defogger Circuit Check
.105
Rear Window Defogger Signal Check ..................106
Filament Check .....................................................107
Filament Repair .....................................................107
REPAIR EQUIPMENT .......................................107
REPAIRING PROCEDURE ...............................108
DOOR MIRROR .......................................................109
Door Mirror (Only Manual Operation) ...................109
WRING DIAGRAM —MIRROR— FOR MAN-
UAL OPERATION DOOR MIRROR ...................109
Automatic Drive Positioner Interlocking Door Mirror .110
WRING DIAGRAM –MIRROR– FOR AUTO-
MATIC DRIVE POSITIONER INTERLOCKING
DOOR MIRROR ................................................. 111
Removal and Installation .......................................113
REMOVAL ..........................................................113
INSTALLATION ..................................................113
Disassembly and Assembly ..................................113
DISASSEMBLY ..................................................113
ASSEMBLY ........................................................114

GW-86
REAR WINDOW DEFOGGER
Revision: 2004 November 2004 FX35/FX45
REAR WINDOW DEFOGGERPFP:25350
Component Parts and Harness Connector LocationAIS004QY
System DescriptionAIS004QZ
The rear window defogger system is controlled by BCM (Body Control Module) and IPDM E/R (Intelligent
Power Distribution Module Engine Room).
The rear window defogger operates only for approximately 15 minutes.
Power is at all times supplied

through 20A fuse [No. 75, and 80, located in the IPDM E/R]

to rear window defogger relay terminals 3 and 6.

through 10A fuse [No.12, located in the fuse block]

to rear window defogger relay terminal 1.

through 15A fuse [No. 32, located in the fuse block (J/B)]
PIIA6408E

REAR WINDOW DEFOGGER
GW-87
C
D
E
F
G
H
J
K
L
MA
B
GW
Revision: 2004 November 2004 FX35/FX45

to A/C and AV switch terminal 1.

through 50A fusible link (letter M , located in the fuse and fusible link box)

to BCM terminal 55.

through 15A fuse [No.22, located in the fuse block (J/B)]

to BCM terminal 42.
With the ignition switch turned to ON or START position,
Power is supplied

through 15A fuse [No.1, located in the fuse block (J/B)]

to BCM terminal 38.
Ground is supplied

to BCM terminal 49 and 52

through body grounds M35, M45 and M85.

to A/C and AV switch terminal 5

through body grounds M35, M45 and M85.

to IPDM E/R terminals 38 and 60

through body grounds E21, E50 and E51.
When rear window defogger switch in A/C and AV switch is turned to ON,
Ground is supplied

to BCM terminal 9

through A/C and AV switch terminal 16

through A/C and AV switch terminal 5

through body grounds M35, M45 and M85.
Then rear window defogger switch is illuminated.
Then BCM recognizes that rear window defogger switch is turned to ON.
Then it sends rear window defogger switch signals to IPDM E/R, display control unit (with navigation system)
or display unit (without navigation system) via DATA LINE (CAN H, CAN L).
When display control unit (with navigation system) or display unit (without navigation system) receives rear
window defogger switch signals, and display on the screen.
When IPDM E/R receives rear window defogger switch signals,
Ground is supplied

to rear window defogger relay terminal 2

through IPDM E/R terminal 52

through IPDM E/R terminals 38 and 60

through body grounds E21, E50 and E51,
and then rear window defogger relay is energized.
When rear window defogger relay is turned ON,
Signals are transmitted,

through rear window defogger relay terminals 5 and 7

to rear window defogger terminal 1

Rear window defogger terminal 2 is grounded through body grounds B15 and B45.
With power and ground supplied, rear window defogger filaments heat and defog the rear window.
When rear window defogger relay is turned to ON,
Power is supplied

through rear window defogger relay terminal 7

through fuse block (J/B) terminal 2C

through 15A fuse [No. 8, located in the fuse block (J/B)]

through fuse block (J/B) terminal 5B

to door mirror defogger (driver side and passenger side) terminal 1.
Door mirror defogger (driver side and passenger side) terminal 2 is grounded through body grounds M35, M45
and M85.
With power and ground supplied, rear window defogger filaments heat and defog the rear window and door
mirror defogger filaments heat and defog the mirror.

GW-94
REAR WINDOW DEFOGGER
Revision: 2004 November 2004 FX35/FX45
Terminal and Reference Value for BCMAIS004R4
Terminal and Reference Value for IPDM E/RAIS004R5
Work FlowAIS004R6
1. Check the symptom and customer's requests.
2. Understand the outline of system. Refer to GW-86, "
System Description" .
3. According to the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to GW-97,
"Trouble Diagnoses Symptom Chart" .
4. Does rear window defogger operate normally? YES: GO TO 5, NO: GO TO 3.
5. INSPECTION END.
Terminal Wire color Item ConditionVoltage (V)
(Approx.)
9L/WRear window defogger
switch signalWhen rear window defogger switch is pressed. 0
When rear window defogger switch is OFF. 5
38 W/L Ignition switch ON or START Ignition switch (ON or START position) Battery voltage
39 L CAN− H——
40 R CAN− L——
42 L/R Battery power supply — Battery voltage
49 B Ground (signal) — 0
52 B Ground (power) — 0
55 G Battery power supply — Battery voltage
Terminal Wire color Item ConditionVoltage (V)
(Approx.)
5 R Battery power supply — Battery voltage
6 W Battery power supply — Battery voltage
38 B Ground (Power) — 0
48 L CAN− H——
49 R CAN− L——
52 GRear window defogger relay
control signalWhen rear window defogger switch is ON. 0
When rear window defogger switch is OFF. Battery voltage
60 B Ground (Signal) — 0

REAR WINDOW DEFOGGER
GW-97
C
D
E
F
G
H
J
K
L
MA
B
GW
Revision: 2004 November 2004 FX35/FX45
Trouble Diagnoses Symptom ChartAIS004R8

Make sure other systems using the signal of the following systems operate normally.
BCM Power Supply and Ground Circuit CheckAIS004R9
First perform the “SELF-DIAG RESULTS” in “BCM” with CONSULT-II, when perform the each trouble
diagnosis. Refer to BCS-14, "
CAN Communication Inspection Using CONSULT-II (Self-Diagnosis)" .
1. CHECK FUSE

Check 15A fuse [No.1, located in fuse block (J/B)]

Check 15A fuse [No.22, located in fuse block (J/B)]

Check 50A fusible link (letter M located in the fuse and fusible link box).
NOTE:
Refer to GW-86, "
Component Parts and Harness Connector Location" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown out, be sure to eliminate cause of malfunction before installing new fuse. Refer to
PG-3, "
POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between BCM connector M3, M4 terminal 38, 42,
55 and ground.
OK or NG
OK >> GO TO 3.
NG >> Check BCM power supply circuit for open or short.
Symptom Diagnoses / Service procedure Refer to page
Rear window defogger and door mirror defogger do not
operate. 1. BCM power supply and ground circuit check.GW-97
2. IPDM E/R auto active test checkPG-24
3. Rear window defogger switch circuit checkGW-98
4. Rear window defogger power supply circuit checkGW-100
5. Replace IPDM E/ RPG-30
Rear window defogger does not operate but both of door
mirror defogger operate.1. Rear window defogger circuit checkGW-102
2. Filament checkGW-107
Door mirror defogger does not operated but both of rear
window defogger operate. 1. Door mirror defogger power supply circuit checkGW-103
Driver side door mirror defogger does not operate. 1. Driver side door mirror defogger circuit checkGW-104
Passenger side door mirror defogger does not operate. 1. Passenger side door mirror defogger circuit checkGW-105
Rear window defogger switch does not light, and rear win-
dow defogger is not displayed on the display.
But rear window defogger operates. 1. Rear window defogger signal checkGW-106
38 (W/L) – Ground : Battery voltage
42 (L/R) – Ground : Battery voltage
55 (G) – Ground : Battery voltage
PIIA6160E

GW-100
REAR WINDOW DEFOGGER
Revision: 2004 November 2004 FX35/FX45
Rear Window Defogger Power Supply Circuit CheckAIS004RB
1. CHECK FUSE

Check 10A fuse [No.12, located in fuse block (J/B)]

Check 20A fuse (No.75, located in the IPDM E/R)

Check 20A fuse (No.80, located in the IPDM E/R)
NOTE:
Refer to GW-86, "
Component Parts and Harness Connector Location" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown out, be sure to eliminate cause of malfunction before installing new fuse, refer to
PG-3, "
POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Remove rear window defogger relay.
3. Turn ignition switch ON.
4. Check voltage between rear window defogger relay connector
and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness between fuse block (J/B) and
rear window defogger relay.
3. CHECK REAR WINDOW DEFOGGER RELAY
Check continuity between rear window defogger terminals 3 and 5, 6
and 7.
OK or NG
OK >> GO TO 4.
NG >> Replace rear window defogger relay.
ConnectorTerminals (Wire color)
Voltage (V)
(Approx.)
(+) (-)
E131 (OR)
Ground Battery voltage 3 (W)
6 (R)
PIIA4233E
Terminal Condition Continuity
3512V direct current supply
between terminals 1 and 2Ye s
No current supply No
6712V direct current supply
between terminals 1 and 2Ye s
No current supply No
SEC202B

REAR WINDOW DEFOGGER
GW-101
C
D
E
F
G
H
J
K
L
MA
B
GW
Revision: 2004 November 2004 FX35/FX45
4. CHECK REAR WINDOW DEFOGGER RELAY GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Installation rear window defogger relay.
3. Turn ignition switch ON.
4. Check voltage between IPDM E/R connector and ground.
OK or NG
OK >> Rear window defogger power supply circuit is OK.
NG >> GO TO 5.
5. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector and rear window defogger relay.
3. Check continuity between IPDM E/R connector E9 terminal 52
and rear window defogger relay connector E13 terminal 2.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace harness between IPDM E/R and rear
window defogger relay.
6. CHECK REAR WINDOW DEFOGGER RELAY OUTPUT SIGNAL
1. Connect IPDM E/R and rear window defogger relay.
2. Turn ignition switch ON.
3. Check voltage between IPDM E/R connector E9 terminal 52 and
ground.
OK or NG
OK >> Check condition of harness and connector.
NG >> Replace IPDM E/R.
ConnectorTerminals (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (-)
E9 52 (G) GroundWhen rear window defog-
ger switch ON0
When rear window defog-
ger switch OFFBattery
voltage
PIIA6210E
52 (G) – 2 (G) : Continuity should exist.
PIIA6211E
52 (G) – Ground : Battery voltage
PIIA6210E