LT-296
ILLUMINATION
Revision: 2006 January2006 M35/M45
ILLUMINATION OPERATION BY LIGHTING SWITCH
With the lighting switch in the 1ST or 2ND position (or if the auto light system is activated), the BCM receives
input signal requesting the illumination lamps to illuminate. This input signal is communicated to the IPDM E/R
across the CAN communication lines. The CPU located in the IPDM E/R controls the tail lamp relay coil,
which, when energized, directs power
through IPDM E/R terminal 21
to combination meter terminal 13
to LDW switch (illumination) terminal 5 (with lane departure warning)
to VDC off switch (illumination) terminal 3
to trunk lid opener switch (illumination) terminal 3
to combination switch (spiral cable) terminal 24
to door mirror remote control switch (illumination) terminal 16
to AFS switch (illumination) terminal 5 (with AFS)
to rear sunshade front switch (illumination) terminal 5 (with rear control switch)
to A/T illumination terminal 1
to snow mode switch (illumination) terminal 5 (AWD models)
to rear control cancel switch (illumination) terminal 4 (with rear control switch)
to clock terminal 3
to multifunction switch terminal 3
to audio unit terminal 9
to DVD player terminal 18 (with DVD player)
to NAVI control unit terminal 61 (with navigation system)
to AV control unit terminal 61 (without navigation system)
to climate controlled seat switch driver side (illumination) terminal 7 (with climate controlled seat)
to climate controlled seat switch passenger side (illumination) terminal 7 (with climate controlled seat)
to ashtray illumination (rear LH) terminal 1
to ashtray illumination (rear RH) terminal 1
to illumination control switch terminal 1
to cigarette lighter socket (illumination) terminal 2
to map lamp (illumination) terminal 8
to power window main switch illumination terminal 1
to glove box lamp terminal 1
to rear control switch terminal 2
to rear power seat switch RH (illumination) terminal 4 (with rear control switch)
to rear heated seat switch RH (illumination) terminal 7 (with rear control switch)
to rear sunshade cancel relay terminal 6 (with rear control switch)
to automatic return cancel switch (illumination) terminal 4 (with rear control switch)
to rear power seat switch LH (illumination) terminal 4 (with rear control switch) and
to rear heated seat switch LH (illumination) terminal 7 (with rear control switch),
through Intelligent Key unit terminal 12
to push button ignition switch (illumination) terminal 3.
Ground is supplied
to combination meter terminal 14
to combination meter terminal 9, 10 and 11
to push button ignition switch (illumination) terminal 2
to LDW switch (illumination) terminal 4 (with lane departure warning)
to VDC off switch (illumination) terminal 4
to trunk lid opener switch (illumination) terminal 4
to combination switch (spiral cable) terminal 25
ILLUMINATION
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to door mirror remote control switch (illumination) terminal 15
to AFS switch (illumination) terminal 6 (with AFS)
to rear sunshade front switch (illumination) terminal 6 (with rear control switch)
to A/T illumination terminal 2
to snow mode switch (illumination) terminal 6 (ADW models)
to rear control cancel switch (illumination) terminal 5 (with rear control switch)
to clock terminal 4
to multifunction switch terminal 4
to audio unit terminal 8
to DVD player terminal 17 (With DVD player)
to climate controlled seat switch driver side (illumination) terminal 8 (with climate controlled seat) and
to climate controlled seat switch passenger side (illumination) terminal 8 (with climate controlled seat)
through illumination control switch terminal 2
to illumination control switch terminal 3
through grounds M16 and M70,
to cigarette lighter socket (illumination) terminal 1
to map lamp (illumination) terminal 4
to power window main switch illumination terminal 2 and
to glove box lamp terminal 2
through grounds M16 and M70,
to ashtray illumination (rear LH) terminal 2
to ashtray illumination (rear RH) terminal 2
to automatic return cancel switch (illumination) terminal 2 (With rear control switch)
to rear power seat switch LH (illumination) terminal 3 (With rear control switch)
to rear heated seat switch LH (illumination) terminal 8 (With rear control switch)
through grounds B5, B40 and B131,
through rear sunshade cancel relay terminal 7(With rear control switch)
to rear sunshade rear switch (illumination) terminal 7 (With rear control switch)
through grounds B5, B40, B131 and B559.
to rear control switch terminal 4
to rear power seat switch RH (illumination) terminal 3 (With rear control switch)
to rear heated seat switch RH (illumination) terminal 8 (With rear control switch)
through grounds B5, B40, B131 and B559.
With power and ground supplied, illumination lamps illuminate.
EXTERIOR LAMP BATTERY SAVER CONTROL
BCM activates the exterior lamp battery saver control function and turns off the exterior lamps to prevent bat-
tery from over discharge when the combination switch (lighting switch) is in 1ST or 2ND position and/or the
front fog lamp switch ON and the door lock operation is performed by keyless entry system.
CAN Communication System DescriptionNKS003TI
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. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected 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 UnitNKS003TJ
Refer to LAN-34, "CAN Communication Unit" .
BULB SPECIFICATIONS
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BULB SPECIFICATIONSPFP:26297
HeadlampNKS003TQ
Exterior LampNKS003TR
Interior Lamp/IlluminationNKS003TS
NOTE:
This lamp is used as both front ashtray and front cigarette lighter. Item Wattage (W)
Low (Halogen type)55 (H1)
Low (Xenon type)35 (D2S)
High60 (HB3)
Item Wattage (W)
Front combination lampFront turn signal lamp 21
Parking lamp (Clearance lamp) 5
Front side marker lamp 5
Rear combination lampStop/Tail lamp LED
Rear turn signal lamp 21 (amber)
Rear side marker lamp LED
Back-up lamp18
Side turn signal lamp5
Front fog lamp55 (H11)
License plate lamp5
High-mounted stop lampLED
Item Wattage (W)
Map lamp8
Personal lamp8
Trunk room lampUpper
5
Lower
Front ashtray and front cigarette lighter illumination
NOTE1.4
Rear ashtray illumination1.4
Ste p lamp5
Vanity mirror lamp1.8
Center console indirect illuminationLED
Glove box lamp1.4
Foot lampDriver side
3.4
Passenger side
Kicking plateDriver side
LED
Passenger side
Power window indirect illuminationLED
PG-18
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Revision: 2006 January2006 M35/M45
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PFP:284B7
System DescriptionNKS004E2
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 and
oil pressure 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
1. Lamp control
Using CAN communication, it receives signal from BCM and controls the following lamps:
Headlamps (HI, LO)
Tail, parking and license plate lamps
Front fog lamps
2. Daytime light relay control (for Canada models)
Using CAN communication, it receives signals from BCM and controls the daytime light relay.
3. Wiper control
Using CAN communication, it receives signals from BCM and controls the front wipers.
4. Rear window defogger relay control
Using CAN communication, it receives signals from BCM and controls the rear window defogger relay.
5. A/C compressor control
Using CAN communication, it receives signals from ECM and controls the A/C relay.
6. Cooling fan control
Using CAN communication, it receives signals from ECM and controls cooling fan via cooling fan control
module.
7. Horn control
Using CAN communication, it receives signals from BCM and controls horn relay.
8. Starter motor relay control
Using CAN communication, it receives signals from BCM and controls starter motor relay.
9. Alternator control
Using CAN communication, it receives signal from ECM and controls power generation voltage.
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.
1. 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:
Controlled system Fail-safe mode
Headlamps
With the ignition switch ON, the headlamp low relay is ON.
With the ignition switch OFF, the headlamp low relay is OFF.
Tail, parking and
license plate lamps
With the ignition switch ON, the tail lamp relay is ON.
With the ignition switch OFF, the tail lamp relay is OFF.
Cooling fan
With the ignition switch ON, the cooling fan HI operates.
With the ignition switch OFF, the cooling fan stops.
Front wiperUntil 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.
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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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 transient status.
2. Sleep transient 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 hood switch or ignition switch signal is detected, mode switches to CAN communica-
tion status.
CAN Communication System DescriptionNKS004E3
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 UnitNKS004E4
Refer to LAN-34, "CAN Communication Unit" .
Function of Detecting Ignition Relay MalfunctionNKS004E5
When contact point of integrated ignition relay is stuck and cannot be turned OFF, IPDM E/R turns ON tail
and parking lamps 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, the tail lamps are OFF.
Rear window defogger Rear window defogger relay OFF
A/C compressor A/C relay OFF
Front fog lamps Front fog lamp relay OFF Controlled system Fail-safe mode
Ignition switch signal Ignition relay status Tail lamp relay
ON ON —
OFF OFF —
ON OFF —
OFF ON ON (10 minutes)
PG-22
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Revision: 2006 January2006 M35/M45
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/OFFSignal 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
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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CAN DIAG SUPPORT MNTR
Refer to LAN-20, "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.
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IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Revision: 2006 January2006 M35/M45
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-81, "
CONSULT-II Application Items" .
Be sure to inspect GW-52, "Door Switch Check" when the auto active test cannot be performed.