Page 3746 of 4366

PG-2Revision: 2006 July 2007 FX35/FX45
TYPE) ...............................................................
... 71
HARNESS CONNECTOR (SLIDE-LOCKING
TYPE) ............................................................... ... 72
HARNESS CONNECTOR (LEVER LOCKING
TYPE) ............................................................... ... 73
ELECTRICAL UNITS ............................................. ... 74
Terminal Arrangement ......................................... ... 74
SMJ (SUPER MULTIPLE JUNCTION) .................. ... 76
Terminal Arrangement ......................................... ... 76 STANDARDIZED RELAY .......................................
... 78
Description ........................................................... ... 78
NORMAL OPEN, NORMAL CLOSED AND
MIXED TYPE RELAYS ..................................... ... 78
TYPE OF STANDARDIZED RELAYS ............... ... 78
FUSE BLOCK - JUNCTION BOX (J/B) ................. ... 80
Terminal Arrangement .......................................... ... 80
FUSE, FUSIBLE LINK AND RELAY BOX ............. ... 81
Terminal Arrangement .......................................... ... 81
Page 3760 of 4366

PG-16
POWER SUPPLY ROUTING CIRCUIT
Revision: 2006 July 2007 FX35/FX45
Fuse NKS003G8
If fuse is blown, be sure to eliminate cause of malfunction before
installing new fuse.
Use fuse of specified rating. Never use fuse of more than speci-
fied rating.
Do not partially install fuse; always insert it into fuse holder prop-
erly.
Remove fuse for “ELECTRICAL PARTS (BAT)” if vehicle is not
used for a long period of time.
Fusible LinkNKS003G9
A melted fusible link can be detected either by visual inspection or by
feeling with finger tip. If its condition is questionable, use circuit
tester or test lamp.
CAUTION:
If fusible link should melt, it is possible that critical circuit
(power supply or large current carrying circuit) is shorted.
In such a case, carefully check and eliminate cause of mal-
function.
Never wrap outside of fusible link with vinyl tape. Important:
Never let fusible link touch any other wiring harness, vinyl
or rubber parts.
Circuit Breaker NKS003GA
The PTC thermistor generates heat in response to current flow. The
temperature (and resistance) of the thermistor element varies with
current flow. Excessive current flow will cause the element's temper-
ature to rise. When the temperature reaches a specified level, the
electrical resistance will rise sharply to control the circuit current.
Reduced current flow will cause the element to cool. Resistance falls
accordingly and normal circuit current flow is allowed to resume.
CEL083
CKIM0195E
SEL109W
Page 3761 of 4366

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) PG-17
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Revision: 2006 July 2007 FX35/FX45
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PFP:284B7
System DescriptionNKS003GB
IPDM E/R (Intelligent Power Distribution Module Engine Room) integrates the relay box and fuse block
which were originally placed in engine compartment. It controls integrated relay via IPDM E/R control cir-
cuit.
IPDM E/R-integrated control circuit performs ON-OFF operation of relay, CAN communication control, oil
pressure switch signal, and hood switch signal reception, etc.
It controls operation of each electrical part via ECM, BCM and CAN communication lines.
CAUTION:
None of the IPDM E/R-integrated relays can be removed.
SYSTEMS CONTROLLED BY IPDM E/R
IPDM E/R receives a request signal from each control unit with CAN communication. It controls each system.
CAN COMMUNICATION LINE CONTROL
With CAN communication, by connecting each control unit using two communication lines (CAN L line, CAN H
line), it is possible to transmit maximum amount of information with minimum wiring. Each control unit can
transmit and receive data, and reads necessary information only.
Fail- Safe Control
When CAN communication with other control units is impossible, IPDM E/R performs fail-safe control.
After CAN communication recovers normally, it also returns to normal control.
Operation of control parts by IPDM E/R during fail-safe mode is as follows:
Control system Transmit control unit Control part
Lamp control BCM
Headlamps (HI, LO)
Front fog lamps
Parking, license plate, side marker and tail lamps
Wiper control BCM Front wipers
Rear window defogger control BCM Rear window defogger
A/C compressor control ECM A/C compressor (magnet clutch)
Cooling fan control ECM Cooling fan
Horn control BCM Horn
Controlled system Fail-safe mode
Headlamp
With the ignition switch ON, the headlamp (low) is ON.
With the ignition switch OFF, the headlamp (low) is OFF.
Parking, license plate side marker and
tail lamps
With the ignition switch ON, the parking, license plate, side marker and tail lamps is ON.
With the ignition switch OFF, the parking, license plate, side marker and tail lamps is OFF.
Cooling fan
With the ignition switch ON, the cooling fan HI operates.
With the ignition switch OFF, the cooling fan stops.
Front wiper Until the ignition switch is turned OFF, the front wiper LO and HI remains in the same status
it was in just before fail-safe control was initiated.
Rear window defogger Rear window defogger relay OFF
A/C compressor A/C compressor OFF
Front fog lamps Front fog lamp relay OFF
Page 3770 of 4366

PG-26
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Revision: 2006 July 2007 FX35/FX45
IPDM E/R Power/Ground Circuit InspectionNKS003GJ
1. CHECK FUSES AND FUSIBLE LINKS
Make sure the following fusible links or IPDM E/R fuses are not blown.
OK or NG
OK >> GO TO 2.
NG >> If fuse or fusible link blown, be sure to eliminate cause of malfunction before installing new one.
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector E3.
3. Check voltage between IPDM E/R harness connector E3 termi- nals 1, 2 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 E8 and E9.
2. Check continuity between IPDM E/R harness connectors E8 ter- minal 38, E9 terminal 50, 60 and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
Terminal No. Power source Fuse and fusible link No.
1, 2 Battery power C
E
71
78
1, 2 – Ground : Battery voltage
PKIB6562E
38, 50, 60 – Ground : Continuity should exist.
SKIA6184E
Page 3824 of 4366
PG-80
FUSE BLOCK - JUNCTION BOX (J/B)
Revision: 2006 July 2007 FX35/FX45
FUSE BLOCK - JUNCTION BOX (J/B)PFP:24350
Terminal ArrangementNKS003GU
CKIM0652E
Page 3825 of 4366
FUSE, FUSIBLE LINK AND RELAY BOX PG-81
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PG
Revision: 2006 July 2007 FX35/FX45
FUSE, FUSIBLE LINK AND RELAY BOXPFP:24382
Terminal ArrangementNKS003GV
CKIM0223E
Page 3826 of 4366
PG-82
FUSE, FUSIBLE LINK AND RELAY BOX
Revision: 2006 July 2007 FX35/FX45
Page 3879 of 4366

POWER STEERING OIL PUMP PS-39
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PS
Revision: 2006 July 2007 FX35/FX45
ASSEMBLY
NOTE:
Fix oil pump in vise as vise occasion demands.
CAUTION:
When retaining drive shaft assembly in a vise, always use copper or aluminum plates between vise
and shaft.
1. Apply recommended grease to oil seal lips (1). Apply recom- mended fluid to around oil seal, and then install oil seal to body
assembly.
2. Apply recommended fluid to drive shaft assembly and press drive shaft assembly into body assembly with suitable tool, then
install snap ring.
3. Apply recommended fluid to O-ring and Install O-ring into body assembly.
4. Install side plate to body assembly.
5. Install lock pin into lock pin hole, and install cam-ring as shown in the figure.
When installing cam-ring, turn carved face with a letter (E) of
it to rear cover.
CAUTION:
Do not confuse the assembling direction of cam ring. If
cam ring is installed facing the incorrect direction, it may
cause pump operation malfunction.
6. Install rotor to body assembly.
SGIA1150E
SGIA0422E
SGIA0591E