INFINITI M35 2007 Factory Service Manual

PG-20
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Revision: 2007 April2007 M35/M45
CONSULT-II Function (IPDM E/R)NKS004E6
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II BASIC OPERATION
Refer to GI-38, "CONSULT-II Start Procedure" .
SELF-DIAG RESULTS
Operation Procedure
1. Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE” screen.
2. Check display content in self-diagnostic results.
Display Item List
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. Inspection Item, Diagnosis Mode Description
SELF-DIAG RESULTS 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 MNTR 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.
Display ItemsCONSULT-II
display codeMalfunction detecting conditionTIME
Possible causes
CRNT PAST
NO DTC IS
DETECTED.FURTHER
TESTING MAY BE
REQUIRED.-----
CAN COMM CIRC U1000

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
received before the specified time××Any of or several items
below have errors.

TRANSMIT DIAG

ECM

BCM/SEC

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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DATA MONITOR
Operation Procedure
1. Touch “DATA MONITOR” on “SELECT MONITOR ITEM ” screen.
2. Touch “ALL SIGNALS”, “MAIN SIGNALS” or “SELECTION FROM MENU” on the “DATA MONITOR”
screen.
3. Touch the required monitoring item on “SELECTION FROM MENU”. In “ALL SIGNALS”, all items are
monitored. In “MAIN SIGNALS”, predetermined items are monitored.
4. Touch “START”.
5. Touch “RECORD” while monitoring to record the status of the item being monitored. To stop recording,
touch “STOP”.
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: Only the vehicle with day time light system operates. ALL SIGNALS All items will be monitored.
MAIN SIGNALS Monitor the predetermined item.
SELECTION FROM MENU Select any item for monitoring.
Item nameCONSULT-II
screen displayDisplay or unitMonitor item selection
Description
ALL
SIGNALSMAIN
SIGNALSSELECTION
FROM
MENU
Motor fan request MOTOR FAN REQ 1/2/3/4×× ×Signal status input from ECM
A/C Compressor
requestAC COMP REQ ON/OFF×× ×Signal status input from ECM
Tail & clearance
requestTAIL&CLR REQ ON/OFF×× ×Signal status input from BCM
Headlamp LO
requestHL LO REQ ON/OFF×× ×Signal status input from BCM
Headlamp HI
requestHL HI REQ ON/OFF×× ×Signal status input from BCM
Front fog lamp
request FR FOG REQ ON/OFF×× ×Signal status input from BCM
Front wiper request FR WIP REQSTOP/1LOW/
LOW/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 ON/OFF××Signal status input from BCM
Ignition relay status IGN RLY ON/OFF×× ×Ignition relay status monitored
with IPDM E/R
Rear window defog-
ger requestRR DEF REQ ON/OFF×× ×Signal status input from BCM
Oil pressure switch OIL P SW OPEN/CLOSE××Signal status input in IPDM E/R
Daytime running
light requestDTRL REQ
*1ON/OFF××Signal status input from BCM
Hood switch HOOD SW ON/OFF××Signal status input in IPDM E/R
Theft warning horn
requestTHFT HRN REQ ON/OFF××Signal status input from BCM
Horn chirp HORN CHIRP ON/OFF××Output status of IPDM E/R

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IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Revision: 2007 April2007 M35/M45
CAN DIAG SUPPORT MNTR
Refer to LAN-44, "CAN Diagnostic Support Monitor" in LAN section.
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 “STOP” while testing to stop the operation.
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 oper-
ationREAR DEFOGGERWith a certain ON-OFF operation, the rear window defogger relay can
be operated.
Front wiper (HI, LO) opera-
tionFRONT WIPERWith 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-
tionLAMPSWith a certain operation (OFF, HI ON, LO ON, FOG ON), the lamp
relay (Lo, Hi, Fog) can be operated.
Horn operation HORN Push “ON” button, horn relay operates 20ms.

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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Auto Active TestNKS004E7
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 wiper (LO, HI)

Tail lamps, parking lamps and license plate lamps

Front fog lamps

Headlamps (LO, HI)

A/C compressor (magnetic clutch)

Cooling fan

Oil pressure warning lamp
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, press driver's 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 chirps 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:

Never start the engine.

If the engine starting operation is made, delete DTC on the self-diag results of CONSULT-II.
Refer to BL-79, "
CONSULT-II Application Items" .

Be sure to inspect GW-50, "Check door Switch" when the auto active test cannot be performed.

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IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Revision: 2007 April2007 M35/M45
INSPECTION IN AUTO ACTIVE TEST MODE
When auto active test mode is actuated, the following eight steps are repeated three times.
(A): Oil pressure warning lamp is blinking when the auto active test operating.
Operation steps
PKIC0273E
Test item Operation time/ frequency
1 Rear window defogger 10 seconds
2 Front wiper LO 5 seconds → HI 5 seconds
3 Tail lamps, parking lamps, license plate lamps 10 seconds
4 Front fog lamps 10 seconds
5 Headlamp (LO) 10 seconds
6 Headlamp (HI) ON-OFF 5 times
7 A/C compressor (magnetic clutch) ON-OFF 5 times
8 Cooling fan LO 5 seconds → HI 5 seconds

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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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
PKIC0274E
Symptom Inspection contents Possible cause
Any of front wipers,
tail lamps, parking
lamps, front fog
lamps, and head
lamps (HI, LO) do not
operate.Perform auto active
test. Does system
in question oper-
ate?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 defog-
ger 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 malfunction between BCM and ECM.

CAN communication signal malfunction 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

PG-26
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Revision: 2007 April2007 M35/M45
Cooling fan does not
operate.Perform auto active
test. Does cooling
fan operate?YES

ECM signal input circuit malfunction

CAN communication signal malfunction between ECM and IPDM E/R
NO

Cooling fan motor malfunction

Harness/connector malfunction between cooling fan motor and cooling fan
control module

Cooling fan control module malfunction

Harness/connector malfunction between IPDM E/R and cooling fan control
module

Cooling fan relay malfunction

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

IPDM E/R malfunction
Oil pressure warning
lamp does not oper-
ate.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 malfunction between IPDM E/R and unified meter
and A/C amp.

Combination meter malfunction Symptom Inspection contents Possible cause

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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SchematicNKS004E8
TKWT5166E

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IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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IPDM E/R Terminal ArrangementNKS004E9
CKIT0665E

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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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