LT-190
ILLUMINATION
Revision: 2005 July 2005 FX
to clock (illumination) terminal 3
to hazard switch (illumination) terminal 3
to heated seat switch (driver side) (illumination) terminal 5
to heated seat switch (passenger side) (illumination) terminal 5
to LDW switch (illumination) terminal 5
to door mirror remote control switch (illumination) terminal 16
to A/C and AV switch (illumination) terminal 3
to NAVI control unit (illumination) terminal 25
to DVD player (illumination) terminal 12
to front cigarette lighter socket terminal 2
to rear power window switch LH (illumination) terminal 6 (without interruption detection function for rear
door window), and
to rear power window switch RH (illumination) terminal 6 (without interruption detection function for rear
door window).
Illumination control
through combination meter terminal 19
to A/T device (illumination) terminal 12
to snow mode switch (illumination) terminal 6
to VDC off switch (illumination) terminal 4
to clock (illumination) terminal 4
to hazard switch (illumination) terminal 4
to heated seat switch (driver side) (illumination) terminal 6
to heated seat switch (passenger side) (illumination) terminal 6
to door mirror remote control switch terminal 15
to LDW switch (illumination) terminal 4,
to A/C and AV switch (illumination) terminal 4
to NAVI control unit (illumination) terminal 30, and
to DVD player (illumination) terminal 10.
Ground is supplied at all times
to glove box lamp terminal 2, and
to front cigarette lighter socket terminal 3
through grounds M35, M45 and M85,
to rear power window switch LH (illumination) terminal 7 (without interruption detection function for rear
door window), and
to rear power window switch RH (illumination) terminal 7 (without interruption detection function for rear
door window)
through grounds B15 and B45.
With power and ground supplied, illumination lamps illuminate.
EXTERIOR LAMP BATTERY SAVER CONTROL
When the lighting switch is in the 1ST or 2ND position (or if auto light system is activated), and ignition switch
is turned from ON or ACC to OFF, battery saver control function is activated.
Under this condition, illumination lamps remain illuminated for 5 minutes, then illumination lamps are turned
off.
When the lighting switch is turned from OFF to 1ST or 2ND position (or if auto light system is activated) after
illumination lamps are turned off by battery saver control, and illumination lamps illuminate again.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.
CAN Communication System DescriptionAKS007EJ
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
PG-18
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Revision: 2005 July 2005 FX
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PFP:284B7
System DescriptionAKS005S9
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, oil
pressure switch signal, and hood 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 line, it receives signal from BCM and controls the following lamps:
Headlamps (Hi, Lo)
Parking, license plate and tail lamps
Tail lamps
Front fog lamps
2. Wiper control Using CAN communication line, it receives signals from BCM and controls the front wipers.
3. Rear window defogger relay control Using CAN communication line, it receives signals from BCM and controls the rear window defogger
relay.
4. A/C compressor control Using CAN communication line, it receives signals from ECM and controls the A/C compressor.
5. Cooling fan control Using CAN communication line, it receives signals from ECM and controls cooling fan .
6. Horn control Using CAN communication line, it receives signals from BCM and controls horn relay.
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
Headlamp
With the ignition switch ON, the headlamp (low) is ON.
With the ignition switch OFF, the headlamp (low) is OFF.
Parking, license plate and tail lamps
With the ignition switch ON, the parking, license plate and tail lamps is ON.
With the ignition switch OFF, the parking, license plate and tail lamps is OFF.
Cooling fan
With the ignition switch ON, the cooling fan HI operates.
With the ignition switch OFF, the cooling fan stops.
Front wiper Until 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.
Rear window defogger Rear window defogger relay is OFF
A/C compressor A/C compressor is OFF
Front fog lamps Front fog lamp is OFF
PG-22
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Revision: 2005 July 2005 FX
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: 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.
ALL SIGNALS All items will be monitored.
MAIN SIGNALS Monitor the predetermined item.
SELECTION FROM MENU Select any item for monitoring.
Item name CONSULT-II
screen display Display or unit SELECT MONITOR ITEM
Description
ALL
SIGNALS MAIN
SIGNALS 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
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) PG-23
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3. Touch “START”, and confirm its operation.
4. Touch “STOP” while testing to stop the operation.
NOTE:
This item is displayed, but cannot be tested. 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) operation 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-24
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Revision: 2005 July 2005 FX
Auto Active TestAKS005SD
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 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, press 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 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:
Be sure to inspect BL-42, "
Check Door Switch" when the auto active test cannot be performed.
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.
PKIB6583E
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) PG-25
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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
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
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
HARNESS PG-67
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Wiring Diagram Codes (Cell Codes) AKS007X0
Use the chart below to find out what each wiring diagram code stands for.
Refer to the wiring diagram code in the alphabetical index to find the location (page number) of each wiring
diagram.
Code Section Wiring Diagram Name
A/C ATC Air Conditioner
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 Control 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
CIGAR WW Cigarette Lighter
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)
HARNESS PG-69
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P/SCKT WW Power Socket
PGC/V EC EVAP Canister Purge Volume Control Solenoid Valve
PHASE EC Camshaft Position Sensor (PHASE)
PHSB1 EC Camshaft Position Sensor (PHASE) (Bank 1)
PHSB2 EC Camshaft Position Sensor (PHASE) (Bank 2)
PNP/SW AT Park/Neutral Position Switch
PNP/SW EC Park/Neutral Position Switch
POS EC Crankshaft Position Sensor (CKPS) (POS)
POWER PG Power Supply Routing
PRE/SE EC EVAP Control System Pressure Sensor
PS/SEN EC Power Steering Pressure Sensor
R/VIEW DI Rear View Camera Control System
ROOM/L LT Interior Room Lamp
RP/SEN EC Refrigerant Pressure Sensor
SEAT SE Power Seat
SEN/PW EC Sensor Power Supply
SHIFT AT A/T Shift Lock System
SNOWSW EC Snow Mode Switch
SROOF RF Sunroof
SRS SRS Supplemental Restraint System
START SC Starting System
STOP/L LT Stop Lamp
STSIG AT Start Signal Circuit
T/WARN WT Low Tire Pressure Warning System
TAIL/L LT Parking, License and Tail Lamps
TPS1 EC Throttle Position Sensor (Sensor 1)
TPS2 EC Throttle Position Sensor (Sensor 2)
TPS3 EC Throttle Position Sensor
TRNSCV BL Homelink Universal Transceiver
TURN LT Turn Signal and Hazard Warning Lamp
VDC BRC Vehicle Dynamics Control System
VEHSEC BL Vehicle Security System
VENT/V EC EVAP Canister Vent Control Valve
VIAS/V EC VIAS Control Solenoid Valve
VSSA/T AT Vehicle Speed Sensor A/T (Revolution Sensor)
WARN DI Warning Lamps
WINDOW GW Power Window
WIP/R WW Rear Wiper and Washer
WIPER WW Front Wiper and Washer Code Section Wiring Diagram Name