2008 INFINITI FX35 relay

PG-18
< SERVICE INFORMATION >
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
 All systems controlled by IPDM E/R are stopped. When 3 seconds have elapsed after CAN communica-
tion with other control units is st opped, mode switches to sleep status.
3. Sleep status  IPDM E/R operates in low power mode.
 CAN communication is stopped.
 When a change in CAN communication line is detected, mode switches to CAN communication status.
 When a change hood switch or ignition switch signal is detected, mode switches to CAN communication
status.
CAN Communication System DescriptionINFOID:0000000001328871
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Modern
vehicles are equipped with many electronic control units and each control unit shares information and links
with other control units during operation (not independent ). In CAN communication, control units are con-
nected with 2 communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission
with less wiring. Each control unit transmits/recei ves data but selectively reads required data only.
CAN Communication UnitINFOID:0000000001328872
Refer to LAN-43, "CAN System Specification Chart".
Function of Detecting I gnition Relay MalfunctionINFOID:0000000001328873
 When contact point of integrated ignition relay is st uck and cannot be turned OFF, IPDM E/R turns ON park-
ing, license plate, side marker and tail lamps for 10 minutes to indicate ignition relay malfunction.
 When a state of ignition relay having built-in does not agr ee with a state of ignition switch signal input by a
CAN communication from BCM, IPDM E/R lets tail lamp relay operate.
NOTE:
When the ignition switch is turned ON, the tail lamps are OFF.
CONSULT-III Function (IPDM E/R)INFOID:0000000001328874
CONSULT-III can display each diagnostic item using the diagnostic test mode shown following.
Self Diagnostic Result
Display Item List
Ignition switch signal Ignition relay status Tail lamp relay
ON ON —
OFF OFF — ON OFF —
OFF ON ON (10 minutes)
Inspection Item, Diagnosis Mode Description
Self Diagnostic Result The IPDM E/R performs diagnosis of the CAN communication and self-diagnosis.
Data Monitor The input/output data of the IPDM E/R is displayed in real time.
CAN Diag Support Monitor The result of transmit/receive diagnosis of CAN communication can be read.
Active test The IPDM E/R sends a drive signal to electronic components to check their operation.
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
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IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PG-19
< SERVICE INFORMATION >
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NOTE: The details for display of the period are as follows:
 CRNT: Error currently de tected with IPDM E/R.
 PAST: Error detected in the past and memorized with IPDM E/R.
DATA MONITOR
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 co rrect.
 *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
DTC Display Items Malfunction detecting condition TIME
Possible causes
CRNT PAST
— NO DTC IS DETECT-
ED.FURTHER TEST-
ING MAY BE
REQUIRED. ————
U1000 CAN COMM CIRCUIT  If CAN communication reception/transmission
data has a malfunction, or if any of the control
units malfunction, data reception/transmission
cannot be confirmed.
 When the data in CAN communication is not re- ceived before the specified time ××
Any of or several items
below have errors.
 TRANSMIT DIAG
ECM
 BCM/SEC
Item name
CONSULT-III screen dis-
play Display or unit MAIN SIG-
NALS Description
Motor fan request MOTOR FAN REQ 1/2/3/4 ×Signal status input from ECM
Compressor request A C 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/1LOW/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 defogger re-
quest 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 re-
quest THFT HRN REQ On/Off Signal st
atus input from BCM
Horn chirp HORN CHIRP On/Off Ou tput status of IPDM E/R
Cornering lamp request CRNRNG LMP REQ
*2Off Signal status input from BCM
Test item CONSULT-III 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.
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
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PG-20
< SERVICE INFORMATION >
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
NOTE:
This item is displayed, but cannot be tested.
Auto Active TestINFOID:0000000001328875
DESCRIPTION
In auto active test mode, operation inspection can be performed when IPDM E/R sends a drive signal to the
following systems:
 Rear window defogger
 Front wipers
 Parking, license plate, side marker and tail lamps
 Front fog lamps
 Headlamps (Hi, Lo)
 A/C compressor (magnetic clutch)
 Cooling fan
OPERATION PROCEDURE
1. Close hood and front door (passenger side), and then lift wiper arms away from windshield (to prevent
glass damage by wiper operation).
NOTE:
When auto active test is performed with hood opened, sprinkle water on windshield beforehand.
2. Turn ignition switch OFF.
3. Turn ignition switch ON, and within 20 seconds, pre ss drivers door switch 10 times (close other doors).
Then turn ignition switch OFF.
4. Turn ignition switch ON within 10 seconds after ignition switch OFF.
5. When auto active test mode is actuated, horn chir ps once oil pressure warning lamp starts blinking.
6. After a series of operations is repeated three times, auto active test is completed. NOTE:
When auto active test mode has to be cancelled halfway, turn ignition switch OFF.
CAUTION:
Be sure to inspect BL-38, "
Check Door Switch" when the auto active t est cannot be performed.
INSPECTION IN AUTO ACTIVE TEST MODE
When auto active test mode is actuated, the following eight steps are repeated three times.
Front wiper (HI, LO) operation FRONT WIPER With a certain operation (Off, Hi, Lo),
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, Lo, Fog), 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. Test item CONSULT-III screen display Description
PKIB6583E
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IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PG-21
< SERVICE INFORMATION >
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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 re ceives door switch signal from BCM via CAN communi-
cation 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
Symptom Inspection contents Possible cause
Any of front wipers, tail
and parking lamps, front
fog lamps, and head
lamps (Hi, Lo) do not op-
erate. 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 question
 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 de-
fogger 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 op-
erate. 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
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
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HARNESSPG-61
< SERVICE INFORMATION >
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Code Section Wiring Diagram Name
A/C ATC Air Conditioner
AF1B1 EC Air Fuel Ratio Sensor 1 Bank 1
AF1B2 EC Air Fuel Ratio Sensor 1 Bank 2
AF1HB1 EC Air Fuel Ratio Sensor 1 Heater Bank 1
AF1HB2 EC Air Fuel Ratio Sensor 1 Heater Bank 2
APPS1 EC Accelerator Pedal Position Sensor
APPS2 EC Accelerator Pedal Position Sensor
APPS3 EC Accelerator Pedal Position Sensor
ASC/BS EC Automatic Speed Control Device (ASCD) Brake Switch
ASC/SW EC Automatic Speed Control Device (ASCD) Steering Switch
ASCBOF EC Automatic Speed Control Device (ASCD) Brake Switch
ASCIND EC Automatic Speed Contro l Device (ASCD) Indicator
AT/IND DI A/T Indicator Lamp
AUDIO AV Audio
AUT/DP SE Automatic Drive Positioner
AUTO/L LT Automatic Light System
AWD TF AWD Control System
B/CLOS BL Back Door Closure System
BACK/L LT Back-Up Lamp
BRK/SW EC Brake Switch
CAN AT CAN Communication Line
CAN EC CAN Communication Line
CAN LAN CAN System
CHARGE SC Charging System
CHIME DI Warning Chime
CLOCK DI Clock
COMBSW LT Combination Switch
COMM AV Audio Visual Communication Line
COMPAS DI Compass
COOL/F EC Cooling Fan Control
D/LOCK BL Power Door Lock
DEF GW Rear Window Defogger
DTRL LT Headlamp - With Daytime Light System
ECM/PW EC ECM Power Supply for Back-Up
ECTS EC Engine Coolant Temperature Sensor
ETC1 EC Electric Throttle Control Function
ETC2 EC Electric Throttle Control Motor Relay
ETC3 EC Electric Throttle Control Motor
F/FOG LT Front Fog Lamp
F/PUMP EC Fuel Pump
FTS AT A/T Fluid Temperature Sensor Circuit
FTTS EC Fuel Tank Temperature Sensor
FUELB1 EC Fuel Injection System Function (Bank 1)
FUELB2 EC Fuel Injection System Function (Bank 2)
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STANDARDIZED RELAYPG-75
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STANDARDIZED RELAY
DescriptionINFOID:0000000001328888
NORMAL OPEN, NORMAL CLOS ED AND MIXED TYPE RELAYS
Relays can mainly be divided into three types: normal open, normal closed and mixed type relays.
TYPE OF STANDARDIZED RELAYS
SEL881H
1M ···················· 1 Make 2M ···················· 2 Make
1T ···················· 1 Transfer 1M·1B ···················· 1 Make 1 Break
SEL882H
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PG-76
< SERVICE INFORMATION >
STANDARDIZED RELAY
CKIM0221E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

PG-78
< SERVICE INFORMATION >
FUSE, FUSIBLE LINK AND RELAY BOX
FUSE, FUSIBLE LINK AND RELAY BOX
Terminal ArrangementINFOID:0000000001328890
CKIM0223E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
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