IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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Revision: 2006 November2007 350Z
IPDM E/R STATUS CONTROL
In order to save power, IPDM E/R switches status by itself based on each operating condition.
1. CAN communication status
CAN communication is normally performed with other control units.
Individual unit control by IPDM E/R is normally performed.
When sleep request signal is received from BCM, mode is switched to sleep waiting status.
2. Sleep waiting status
Process to stop CAN communication is activated.
All systems controlled by IPDM E/R are stopped. When 3 seconds have elapsed after CAN communi-
cation with other control units is stopped, 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 in hood switch or ignition switch signal is detected, mode switches to CAN communica-
tion status.
CAN Communication System DescriptionNKS000E5
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/receives data but selectively reads required data only.
CAN Communication UnitNKS000E6
Refer to LAN-48, "CAN System Specification Chart" .
Function of Detecting Ignition Relay MalfunctionNKS000E7
When contact point of integrated ignition relay is stuck and cannot be turned OFF, IPDM E/R turns ON
parking lamp, license plate lamp and tail lamp for 10 minutes to indicate ignition relay malfunction.
When a state of ignition relay having built-in does not agree 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, tail lamp relay and daytime light relay are OFF.
*1: Canada model onlyIgnition switch signal Ignition relay status
Tail lamp relay and daytime light relay
*1
ON ON —
OFF OFF —
ON OFF —
OFF ON ON (10 minutes)
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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Revision: 2006 November2007 350Z
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: This items is displayed, but does not function.
*2: The vehicle without intelligent key system displays only ON without change.
*3: Only the vehicle with daytime light system operates.
ACTIVE TEST
Display Item List
NOTE:
1. Headlamp washer item is displayed, but it cannot be tested.
2. Fog lamp item is displayed, but it cannot be tested. Oil pressure switch
OIL P SW
*1OPEN/CLOSE××—
Day time light request
DTRL REQ
*3ON/OFF××Signal status input from BCM
Hood switch
HOOD SW
*1ON/OFF××—
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 Item nameCONSULT-III screen
displayDisplay or unitSELECT MONITOR ITEM
Description ALL
SIG-
NALSMAIN
SIG-
NALSSELEC-
TION
FROM
MENU
Test item CONSULT-III screen display Description
Tail lamp operation TAIL LAMPWith a certain ON-OFF operation, the tail lamp relay can be oper-
ated.
Rear window defogger opera-
tionREAR DEFOGGERWith a certain ON-OFF operation, the rear window defogger relay
can be operated.
Front wiper (HI, LO) operation FRONT 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.
Headlamp washer
NOTE 1HEAD LAMP WASHER —
Lamp (HI, LO, FOG
NOTE 2 )
operationLAMPSWith a certain operation (OFF, HI ON, LO ON, FOG ON NOTE ), the
lamp relay (Lo, Hi, Fog NOTE ) can be operated.
Horn operation HORN Push “ON” button, horn relay operates 20 ms.
