bcm INFINITI FX35 2007 Service Manual

PG-20
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Revision: 2006 July 2007 FX35/FX45
All Signals, Main Signals, Selection From Menu
NOTE:

Perform monitoring of IPDM E/R data with the ignition switch ON. When the ignition switch is at ACC, the display may not be cor -
rect.

*1: The vehicle without the Intelligent Key system displays only ON without change.

*2:The cornering lamp item is displayed, but it cannot be monitored.
ACTIVE TEST
Operation Procedure
1. Touch “ACTIVE TEST” on “SELECT DIAG MODE” screen.
2. Touch item to be tested.
3. Touch “START”, and confirm its operation.
4. Touch “OFF” while testing to stop the operation.
Item name CONSULT-II
screen display Display or unit SELECT MONITOR ITEM
Description
ALL
SIG-
NALS MAIN
SIG-
NALS SELECTION
FROM
MENU
Motor fan request MOTOR FAN REQ 1/2/3/4 ×× ×Signal status input from ECM
Compressor request AC COMP REQ ON/OFF ×× ×Signal status input from ECM
Tail & clear request TAIL&CLR REQ ON/OFF ×× ×Signal status input from BCM
H/L LO request HL LO REQ ON/OFF ×× ×Signal status input from BCM
H/L HI request HL HI REQ ON/OFF ×× ×Signal status input from BCM
FR fog request FR FOG REQ ON/OFF ×× ×Signal status input from BCM
FR wiper request FR WIP REQ STOP/LO/HI ×× ×Signal status input from BCM
Wiper auto stop WIP AUTO STOP ACT P/STOP P ×× ×Output status of IPDM E/R
Wiper protection WIP PROT OFF/BLOCK ×× ×Control status of IPDM E/R
Starter request ST RLY REQ
*1ON/OFF ×× Status of input signal
Ignition relay status IGN RLY ON/OFF ×× × Ignition relay status monitored
with IPDM E/R
Rear window defog-
ger request RR DEF REQ ON/OFF
×× ×Signal status input from BCM
Oil pressure switch OIL P SW OPEN/CLOSE ××Signal status input in IPDM E/R
Hood switch HOOD SW ON/OFF ××Input signal status
Theft warning horn
request THFT HRN REQ ON/OFF
××Signal status input from BCM
Horn chirp HORN CHIRP ON/OFF ××Output status of IPDM E/R
Cornering lamp
request CRNRNG LMP
REQ
*2OFF/LEFT/
RIGHT ××
Signal status input from BCM
Test item CONSULT-II screen display Description
Tail lamp operation TAIL LAMP With a certain ON-OFF operation, the tail lamp relay can be operated.
Rear window defogger opera-
tion REAR DEFOGGER
With a certain ON-OFF operation, the rear window defogger relay can
be operated.
Front wiper (HI, LO) opera-
tion FRONT WIPER With a certain operation (OFF, HI ON, LO ON), the front wiper relay
(Lo, Hi) can be operated.
Cooling fan operation MOTOR FAN With a certain operation (1, 2, 3, 4), the cooling fan can be operated.
Lamp (HI, LO, FOG) opera-
tion LAMPSWith a certain operation (OFF, HI ON, LO ON, FOG ON), the lamp
relay (Lo, Hi, Fog) can be operated.
Cornering lamp operation CORNERING LAMP
NOTE—
Horn operation HORN With a certain ON-OFF operation, the horn relay can be operated.

PG-22
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Revision: 2006 July 2007 FX35/FX45
INSPECTION IN AUTO ACTIVE TEST MODE
When auto active test mode is actuated, the following eight steps are repeated three times.
NOTE:
Turns ON-OFF the solenoid to switch Hi/Lo. In this case, the bulb does not illuminate.
Concept of Auto Active Test

IPDM E/R actuates auto active test mode when it receives door switch signal from BCM via CAN commu-
nication line. Therefore, when auto active test mode is activated successfully, CAN communication
between IPDM E/R and BCM is normal.

If any of systems controlled by IPDM E/R cannot be operated, possible cause can be easily diagnosed
using auto active test.
Diagnosis chart in auto active test mode
PKIB6583E
Symptom Inspection contents Possible cause
Any of front wipers, tail
and parking lamps, front
fog lamps, and head
lamps (Hi, Lo) do not
operate. Perform auto active
test. Does system in
question operate? YES

BCM signal input system malfunction
NO

Lamp/wiper motor malfunction

Lamp/wiper motor ground circuit malfunction

Harness/connector malfunction between IPDM E/R and system in ques-
tion

IPDM E/R (integrated relay) malfunction
Rear window defogger
does not operate. Perform auto active
test. Does rear win-
dow defogger oper-
ate? YES

BCM signal input circuit malfunction
NO

Rear window defogger relay malfunction

Harness/connector malfunction between IPDM E/R and rear window
defogger relay.

Open circuit of rear window defogger

IPDM E/R malfunction
A/C compressor does
not operate. Perform auto active
test. Does magnetic
clutch operate? YES

BCM signal input circuit malfunction

CAN communication signal between BCM and ECM.

CAN communication signal between ECM and IPDM E/R
NO

Magnetic clutch malfunction

Harness/connector malfunction between IPDM E/R and magnetic clutch

IPDM E/R (integrated relay) malfunction
Cooling fan does not
operate. Perform auto active
test. Does cooling
fan operate? YES

ECM signal input circuit

CAN communication signal between ECM and IPDM E/R
NO

Cooling fan motor malfunction

Harness/connector malfunction between IPDM E/R and cooling fan motor

IPDM E/R (integrated relay) malfunction

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) PG-23
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Revision: 2006 July 2007 FX35/FX45
Oil pressure warning
lamp does not operate. Perform auto active
test. Does oil pres-
sure warning lamp
blink? YES

Harness/connector malfunction between IPDM E/R and oil pressure
switch

Oil pressure switch malfunction

IPDM E/R malfunction
NO

CAN communication signal between BCM and unified meter and A/C amp.

Combination meter
Symptom Inspection contents Possible cause

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) PG-27
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Revision: 2006 July 2007 FX35/FX45
Inspection With CONSULT-II (Self-Diagnosis)NKS003GK
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
1. CHECK SELF DIAGNOSTIC RESULT
1. Connect CONSULT-II and select “IPDM E/R” on the “SELECT SYSTEM” screen.
2. Select “SELF-DIAG RESULTS” on the “SELECT DIAG MODE” screen.
3. Check display content in self diagnostic results.
NOTE:
The details for display of the period are as follows:

CRNT: Error currently detected with IPDM E/R.

PAST: Error detected in the past and memorized with IPDM E/R.
Contents displayed
NO DTC IS DETECTED.FURTHER TESTING MAY BE REQUIRED.>> INSPECTION END
CAN COMM CIRCUIT>> Refer to LAN-49, "
CAN System Specification Chart" .
CONSULT-II display CONSULT-II
display code TIME
Details of diagnosis result
CRNT PAST
NO DTC IS DETECTED.
FURTHER TESTING MAY BE REQUIRED. — — — No malfunction
CAN COMM CIRCUIT U1000 ×× Any of or several items below have errors.

TRANSMIT DIAG

ECM

BCM/SEC

RF-1
ROOF
I BODY
CONTENTS
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SECTION
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RF
Revision: 2006 July 2007 FX35/FX45
ROOF
PRECAUTIONS .......................................................... 2
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 2
Precautions ......................................................... ..... 2
PREPARATION ...................................................... ..... 3
Special Service Tools .......................................... ..... 3
Commercial Service Tools ................................... ..... 3
SQUEAK AND RATTLE TROUBLE DIAGNOSES ..... 4
Work Flow ........................................................... ..... 4
CUSTOMER INTERVIEW ................................ ..... 4
DUPLICATE THE NOISE AND TEST DRIVE .. ..... 5
CHECK RELATED SERVICE BULLETINS ...... ..... 5
LOCATE THE NOISE AND IDENTIFY THE
ROOT CAUSE ................................................. ..... 5
REPAIR THE CAUSE ...................................... ..... 5
CONFIRM THE REPAIR .................................. ..... 6
Generic Squeak and Rattle Troubleshooting ...... ..... 6
INSTRUMENT PANEL ..................................... ..... 6
CENTER CONSOLE ........................................ ..... 6
DOORS ............................................................ ..... 6
TRUNK ............................................................. ..... 7
SUNROOF/HEADLINING ................................ ..... 7
SEATS .............................................................. ..... 7
UNDERHOOD .................................................. ..... 7
Diagnostic Worksheet ......................................... ..... 8
SUNROOF ............................................................. ... 10
Component Parts and Harness Connector Location ... 10
System Description ............................................. .... 11
TILT UP / SLIDE CLOSE OPERATION ............ .... 11
TILT DOWN / SLIDE OPEN OPERATION ....... .... 11
AUTO OPERATION ......................................... .... 11
RETAINED POWER OPERATION ................... .... 11 ANTI-PINCH FUNCTION .................................
... 12
MEMORY RESET PROCEDURE .................... ... 12
INITIALIZATION PROCEDURE ....................... ... 12
CAN Communication System Description ........... ... 12
CAN Communication Unit .................................... ... 12
Wiring Diagram — SROOF — ............................. ... 13
Terminals and Reference Value for BCM ............ ... 14
Terminals and Reference Value for Sunroof Motor
Assembly ............................................................. ... 14
Work Flow ............................................................ ... 15
CONSULT-II Function (BCM) .............................. ... 15
CONSULT-II START PROCEDURE ................. ... 15
ACTIVE TEST .................................................. ... 15
WORK SUPPORT ............................................ ... 15
DATA MONITOR .............................................. ... 15
Trouble Diagnosis Chart by Symptom ................. ... 16
Check BCM Power Supply and Ground Circuit ... ... 16
Check Sunroof Motor Assembly Power Supply and
Ground Circuit ..................................................... ... 17
Check Sunroof Switch System ............................ ... 18
Check Door Switch .............................................. ... 20
Wind Deflector Inspection .................................... ... 22
Link and Wire Assembly ...................................... ... 22
Fitting Adjustment ................................................ ... 22
LID WEATHERSTRIP OVERLAP ADJUST-
MENT AND SURFACE MISMATCH ADJUST-
MENT ............................................................... ... 23
Removal and Installation ..................................... ... 23
SUNROOF UNIT ASSEMBLY .......................... ... 25
GLASS LID ....................................................... ... 26
SUNSHADE ..................................................... ... 27
WIND DEFLECTOR ......................................... ... 27
SUNROOF MOTOR ASSEMBLY ..................... ... 27

SUNROOF RF-11
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Revision: 2006 July 2007 FX35/FX45
System DescriptionNIS001SY
Power supplied at all time

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.

through BCM terminal 54

to sunroof motor assembly terminal 7.
When ignition switch ON or START position,
Power is supplied

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

to BCM terminal 38.

through BCM terminal 53

to sunroof motor assembly terminal 9.
Ground is supplied

to BCM terminal 49 and 52

through body grounds M35, M45, M85 and R6.
TILT UP / SLIDE CLOSE OPERATION
When tilt up / slide close switch is pressed,
Ground is supplied

to sunroof motor assembly terminal 1

through sunroof switch terminal 3

through sunroof switch terminal 2

through body grounds M35, M45, M85 and R6.
Then, the sunroof tilt up / slide close.
TILT DOWN / SLIDE OPEN OPERATION
When tilt down / slide open switch is pressed,
Ground is supplied

to sunroof motor assembly terminal 5

through sunroof switch terminal 1

through sunroof switch terminal 2

through body grounds M35, M45, M85 and R6.
Then, the sunroof tilt down / slide open.
AUTO OPERATION
The power sunroof AUTO feature makes it possible to slide open and slide close or tilt up and tilt down the
sunroof without holding the sunroof switch in the down or up / tilt up or tilt down position.
RETAINED POWER OPERATION
When the ignition switch is turned to OFF position from ON position, power is supplied for 45 seconds.

through BCM terminal 53.

to sunroof motor assembly terminal 9.
When power is supplied, the sunroof can be operated.
The retained power operation is canceled when the driver or passenger side door is opened.
RAP signal period can be changed by CONSULT-II. Refer to RF-15, "
CONSULT-II Function (BCM)" .

RF-14
SUNROOF
Revision: 2006 July 2007 FX35/FX45
Terminals and Reference Value for BCMNIS001T2
Terminals and Reference Value for Sunroof Motor AssemblyNIS001T3
Te r -
minal Wire
color Item Signal
Input/
Output Condition
Voltage (V)
(Approx.)
Ignition
switch OPeration or condition
12 P/B Front door switch
(passenger side) signal Input OFF OPEN (ON) 0
CLOSE (OFF) Battery voltage
38 W/L Ignition switch (ON) Input Ignition switch (ON or START) position Battery voltage
42 L/R Power source (Fuse) Input OFF — Battery voltage
49 B Ground (signal) — ON — 0
52 B Ground (power) — ON — 0
53 Y/B RAP signal Output Ignition switch ON Battery voltage
OFF Within 45 seconds after ignition switch is
turned to OFF position Battery voltage
When driver side or passenger side door
open in power window timer is operates. 0
54 W Power window power supply Output OFF — Battery voltage
55 G Power source (Fusible link) Input OFF — Battery voltage
62 W Front door switch
(driver side) signal Input OFF OPEN (ON) 0
CLOSE (OFF) Battery voltage
Te r -
minal Wire
color Item Signal
Input/
Output Condition
Voltage (V)
(Approx.)
Ignition
switch Operation or condition
1BR Sunroof switch (Tilt up/
Slide close) signal Input ON Ignition switch ON and sunroof
switch in TILT UP/SLIDE
CLOSE position 0
Other than above Battery voltage
5LG Sunroof switch
(Tilt down/Slide open)
signal Input ON Ignition switch ON and sunroof
switch in TILT DOWN/SLIDE
OPEN position 0
Other than above Battery voltage
7W Power window power
supply Input OFF — Battery voltage
8 G Vehicle speed signal Input ON Speedometer operated
[When vehicle speed is approx.
40 km/h (25 MPH)]
9 SB RAP signal Input Ignition switch ON Battery voltage
OFF Within 45 seconds after ignition
switch is turned to OFF position Battery voltage
When driver side or passenger
side door open in power window
timer is operates. 0
10 B Ground — ON — 0
ELF1080D

SUNROOF RF-15
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Revision: 2006 July 2007 FX35/FX45
Work FlowNIS001T4
1. Check the symptom and customer's requests.
2. Understand the outline of system. Refer to RF-11, "
System Description" .
3. According to the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to RF-16,
"Trouble Diagnosis Chart by Symptom" .
4. Does sunroof system operate normally? If Yes, GO TO 5. If No, GO TO 3.
5. INSPECTION END.
CONSULT-II Function (BCM)NIS001T5
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II START PROCEDURE
Refer to GI-38, "CONSULT-II Start Procedure" .
ACTIVE TEST
WORK SUPPORT
DATA MONITOR
BCM diagnostic test item Check item diagnostic test mode Content Refer to page RETAINED PWR Work support Changes setting of each function.
RF-15
Data monitor Displays the input data of BCM in real time.RF-15
Active test Gives a drive signal to a load to check the operation.RF-15
Test Item Description
RETAINED PWR This test is able to supply RAP signal (power) from BCM (body control module) to power window
system and power sunroof system (if equipped). Those systems can be operated when turning on
“RETAINED PWR” on CONSULT-II screen even if the ignition switch is turned OFF.
NOTE:
During this test, CONSULT-II can be operated with ignition switch in OFF position. “RETAINED
PWR” should be turned ON or OFF on CONSULT-II screen when ignition switch is ON. Then turn
ignition switch OFF to check retained power operation. CONSULT-II might be stuck if “RETAINED
PWR” is turned to ON or OFF on CONSULT-II screen when ignition switch is OFF.
Work item Description
RETAINED PWR Rap signal’s power supply period can be changed by mode setting. Selects rap signal’s power
supply period between three steps

MODE1 (45 sec.) / MODE2 (OFF) / MODE 3 (2 min.).
Monitor item Description
IGN ON SW Indicates [ON / OFF] condition of ignition switch
DOOR SW–DR Indicates [ON / OFF] condition of front door switch driver side
DOOR SW–AS Indicates [ON / OFF] condition of front door switch passenger side

RF-16
SUNROOF
Revision: 2006 July 2007 FX35/FX45
Trouble Diagnosis Chart by SymptomNIS001T6
Check BCM Power Supply and Ground CircuitNIS001T7
1. CHECK FUSE

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

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

Check 50A fusible link (letter M, located in the fuse and fusible link box).
NOTE:
Refer to RF-10, "
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
RF-10, "
Component Parts and Harness Connector Location" .
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 Diagnostic procedure and repair order Refer to page
Sunroof does not operate. 1. Check BCM power supply and ground circuit.
RF-16
2. Check sunroof motor assembly power supply and ground circuit.RF-17
3. Check sunroof switch system. RF-18
4. Replace sunroof motor assembly.RF-27
Motor does not stop at the sunroof fully -open
or fully- closed position. 1. Check initialization procedure.
RF-12
2. Replace sunroof motor assembly.RF-27
Retained power operation does not operate
properly. 1. Check the retained power operation mode setting.
RF-152. Check door switch.RF-20
3. Replace sunroof motor assembly.RF-27
Sunroof does not operate the interruption
detection function. Replace sunroof motor assembly.
RF-27
38 (W/L) – Ground : Battery voltage
42 (L/R) – Ground : Battery voltage
55 (G) – Ground : Battery voltage
PIIA6160E

SUNROOF RF-17
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Revision: 2006 July 2007 FX35/FX45
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity between BCM connector M4 terminal 49, 52 and ground.
OK or NG
OK >> Power supply and ground circuit are OK.
NG >> Check BCM ground circuit for open or short.
Check Sunroof Motor Assembly Power Supply and Ground Circuit NIS001T8
1. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between sunroof motor assembly connector R5 terminal 7, 9 and ground.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect sunroof motor assembly connector.
3. Check continuity between sunroof motor assembly connector R5 terminal 10 and ground.
OK or NG
OK >> Sunroof motor assembly power supply and ground cir- cuit are OK. Further inspection is necessary. Refer to
RF-16, "
Trouble Diagnosis Chart by Symptom" .
NG >> Repair or replace harness. 49 (B) – Ground : Continuity should exist.
52 (B) – Ground : Continuity should exist.
PIIA6161E
7 (W) – Ground : Battery voltage
9 (SB) – Ground : Battery voltage
PIIA6151E
10 (B) – Ground : Continuity should exist.
PIIA6152E