BCS-12
< FUNCTION DIAGNOSIS >
COMBINATION SWITCH READING SYSTEM
Component Parts Location
INFOID:0000000001451457
Wiper intermittent
dial positionIntermittent
operation delay
intervalINT VOLUME switch ON/OFF status
INT VOLUME 1 switch INT VOLUME 2 switch INT VOLUME 3 switch
1
Short
↑
↓
LongON ON ON
2ONONOFF
3ONOFFOFF
4 OFF OFF OFF
5OFFOFFON
6 OFF ON ON
7 OFF ON OFF
1. BCM M18, M19, M20 (view with
glove box removed)2. Combination switch (light and turn
signal switch) M283. Combination switch (wiper and
washer switch) M28
ALMIA0186ZZ
BCS
POWER CONSUMPTION CONTROL SYSTEM
BCS-15
< FUNCTION DIAGNOSIS >
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Sleep condition
Wake-up operation
BCM transmits sleep wake up signal (wake up) to each unit when any condition listed below is established,
and then goes into normal mode from low power consumption mode.
Each unit starts transmissions with CAN communication by receiving sleep wake up signals. Each unit trans-
mits wake up signals to BCM with CAN communication to convey the start of CAN communication.
Wake-up condition
Component Parts LocationINFOID:0000000001451462
CAN sleep condition BCM sleep condition
Receiving the sleep-ready signal (ready) from all units
Ignition switch: OFF
Vehicle security system alarm: No operation
Warning lamp: No operation
Warning chime: No operation
Stop lamp switch: OFF
Key switch status: No change for 2 seconds
Hazard warning lamp: No operation
Exterior lamp: OFF
Door lock status: No change for 2 seconds
CONSULT-III communication status: No communication
Door switch status: No change for 2 secondsThe controls only BCM are completed.
(Interior room lamp battery saver: Time out etc.)
BCM wake-up condition
Ignition switch: OFF → ACC or ON
Stop lamp switch: ON (Depress brake pedal)
Any door switch: OFF → ON
Lighting switch: OFF → 1ST or PASS
Hazard switch: OFF → ON
Back door opener switch OFF → ON
Remote keyless entry receiver: Receiving (with remote keyless entry)
Intelligent Key unit: Receiving (with Intelligent Key)
1. IPDM E/R E46 2. BCM M18, M19, M20 (view with
glove box removed)3. Intelligent Key unit M52 (with Intelli-
gent Key) (view with glove box re-
moved)
4. Combination meter M24
ALMIA0187ZZ
BCS-18
< FUNCTION DIAGNOSIS >
DIAGNOSIS SYSTEM (BCM)
*: With super lock
REAR WINDOW DEFOGGER
REAR WINDOW DEFOGGER : CONSULT-III Function (BCM - REAR DEFOGGER)
INFOID:0000000001451466
DATA MONITOR
ACTIVE TEST
BUZZER
BUZZER : CONSULT-III Function (BCM - BUZZER)INFOID:0000000001451467
DATA MONITOR
ACTIVE TEST
DOOR LOCK INDThis test is able to check door lock indicator (built in door lock and unlock switch on center
console) operation [ON/OFF].
TRUNK/BACK DOOR This test is able to check trunk/back door lock operation [LOCK (SET)/UNLOCK (RE-
LEASE)]. Test item Description
Monitor Item
[Unit]Description
ENGINE STATUS [RUN/
STOP]Indicates engine running status.
IGN ON SW [ON/OFF] Indicates condition of ignition switch in ON position.
REAR DEF SW [ON/OFF] Displays “Press (ON)/other (OFF)” status determined with the rear window defogger switch.
Test Item Description
REAR DEFOGGER Give a drive signal to the rear window defogger relay to activate it.
Monitor Item
[Unit]Description
IGN ON SW [ON/OFF] Ignition switch (ON) status judged by ignition power supply input.
PUSH SW
1 [ON/OFF]Ignition knob status.
KEY SW
2 [ON/OFF]Key switch status.
DOOR SW -DR [ON/OFF] Front door switch (driver side) status judged by BCM.
DOOR SW -AS [ON/OFF] Front door switch (passenger side) status judged by BCM.
DOOR SW -RR [ON/OFF] Rear door switch RH status judged by BCM.
DOOR SW -RL [ON/OFF] Rear door switch LH status judged by BCM.
BACK DOOR SW [ON/OFF] Back door switch status judged by BCM.
CDL LOCK SW [ON/OFF] Door lock/unlock switch status.
CDL UNLOCK SW [ON/OFF] Door lock/unlock switch status.
LIGHTING SW [ON/OFF]Lighting switch status judged by the lighting switch signal read with combination switch reading func-
tion.
TRNK OPNR SW [ON/OFF] Trunk switch status.
Test Item Description
LIGHT WARN ALM The light reminder warning operation can be checked by operating the relevant function (On/Off).
KEY REMINDER WARN The key reminder warning operation can be checked by operating the relevant function (On/Off).
BCS
DIAGNOSIS SYSTEM (BCM)
BCS-21
< FUNCTION DIAGNOSIS >
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ACTIVE TEST
WIPER
WIPER : CONSULT-III Function (BCM - WIPER)INFOID:0000000001451471
WORK SUPPORT
HI BEAM SW [ON/OFF]
Each switch status that BCM judges from the combination switch reading function H/L SW POS [ON/OFF]
LIGHT SW 1ST [ON/OFF]
PASSING SW [ON/OFF]
AUTO LIGHT SW [ON/OFF]
FR FOG SW [ON/OFF]
RR FOG SW [ON/OFF]
DOOR SW-DR [ON/OFF] The switch status input from front door switch (driver side)
ENGINE STATUS The engine status received from ECM with CAN communication
LIT-SEN FAIL [OK/NOTOK] The sensor status received from light & rain sensor with serial link
The serial link condition that BCM judges
AUT LIGHT SYS [ON/OFF] Auto light system status that BCM judges from the vehicle conditionMonitor item
[Unit]Description
Test item Operation Description
TAIL LAMPONTransmits the position light request signal to IPDM E/R with CAN com-
munication to turn the tail lamp ON.
OFF Stops the tail lamp request signal transmission.
HEAD LAMPHITransmits the high beam request signal with CAN communication to turn
the headlamp (HI).
LOTransmits the low beam request signal with CAN communication to turn
the headlamp (LO).
OFF Stops the high & low beam request signal transmission.
FR FOG LAMPONTransmits the front fog lights request signal to IPDM E/R with CAN com-
munication to turn the front fog lamp ON.
OFF Stops the front fog lights request signal transmission.
RR FOG LAMPON Outputs the voltage to turn the rear fog lamp ON.
Transmits the rear fog lamp status signal to the combination meter with
CAN communication to turn the rear fog lamp indicator lamp ON.
OFF Stops the voltage to turn the rear fog lamp OFF.
Stops the rear fog lamp status signal transmission.
DAYTIME RUNNING LIGHTONTransmits the day time running light request signal to IPDM E/R with
CAN communication to turn the each lamps ON.
OFF Stops the day time running light request signal transmission.
Work ItemSetting
ItemDescription
WIPER SPEED
SETTINGON
1With vehicle speed
(Front wiper intermittent time linked with the vehicle speed and wiper intermittent dial position)
OFFWithout vehicle speed
(Front wiper intermittent time linked with the wiper intermittent dial position)
RR WIP RVRS
SETON
2Change ON/OFF mode setting or rear wiper operation when gear is shifted to reverse
OFF
BCS-24
< FUNCTION DIAGNOSIS >
DIAGNOSIS SYSTEM (BCM)
COMB SW
COMB SW : CONSULT-III Function (BCM - COMB SW)INFOID:0000000001451475
DATA MONITOR
IMMU
IMMU : CONSULT-III Function (BCM - IMMU)INFOID:0000000001451476
DATA MONITOR
DOOR SW-RL [ON/OFF] Indicates condition of front door switch LH.
BACK DOOR SW [ON/OFF] Indicates condition of back door switch.Monitor Item
[Unit]Condition
Monitor Item
[Unit]Description
TURN SIGNAL R
[OFF/ON]Displays the status of the TURN RH switch in combination switch judged by BCM with the combination switch
reading function.
TURN SIGNAL L
[OFF/ON]Displays the status of the TURN LH switch in combination switch judged by BCM with the combination switch
reading function.
HI BEAM SW
[OFF/ON]Displays the status of the HI BEAM switch in combination switch judged by BCM with the combination switch
reading function.
H/L SW POS
[OFF/ON]Displays the status of the HEADLAMP switch in combination switch judged by BCM with the combination
switch reading function.
LIGHT SW 1ST
[OFF/ON]Displays the status of the HEADLAMP switch in combination switch judged by BCM with the combination
switch reading function.
PASSING SW
[OFF/ON]Displays the status of the PASSING switch in combination switch judged by BCM with the combination switch
reading function.
AUTO LIGHT SW
[OFF/ON]Displays the status of the AUTO LIGHT switch in combination switch judged by BCM with the combination
switch reading function.
FR FOG SW
[OFF/ON]Displays the status of the FR FOG switch in combination switch judged by BCM with the combination switch
reading function.
RR FOG SW
[OFF/ON]Displays the status of the RR FOG switch in combination switch judged by BCM with the combination switch
reading function.
FR WIPER HI
[OFF/ON]Displays the status of the FR WIPER HI switch in combination switch judged by BCM with the combination
switch reading function.
FR WIPER LOW
[OFF/ON]Displays the status of the FR WIPER LOW switch in combination switch judged by BCM with the combination
switch reading function.
FR WIPER INT
[OFF/ON]Displays the status of the FR WIPER INT switch in combination switch judged by BCM with the combination
switch reading function.
FR WASHER SW
[OFF/ON]Displays the status of the FR WASHER switch in combination switch judged by BCM with the combination
switch reading function.
INT VOLUME
[1 - 7]Displays the status of wiper intermittent dial position judged by BCM with the combination switch reading
function.
RR WIPER ON
[OFF/ON]Displays the status of the RR WIPER switch in combination switch judged by BCM with the combination
switch reading function.
RR WIPER INT
[OFF/ON]Displays the status of the RR WIPER INT switch in combination switch judged by BCM with the combination
switch reading function.
RR WASHER SW
[OFF/ON]Displays the status of the RR WASHER switch in combination switch judged by BCM with the combination
switch reading function.
BCS-34
< COMPONENT DIAGNOSIS >
COMBINATION SWITCH
COMBINATION SWITCH
DescriptionINFOID:0000000001451493
COMBINATION SWITCH MATRIX
Combination switch consists of INPUT circuit and OUTPUT circuit.
Combination switch circuit
Combination switch INPUT-OUTPUT system list
NOTE:
Headlamp has a dual system switch.
Diagnosis ProcedureINFOID:0000000001451494
1. CHECK LIGHT & TURN SIGNAL SWITCH
Check operation with normal light & turn signal switch installed.
Does it operate normally?
YES >> Replace light & turn signal switch. Refer to EXL-101, "Removal and Installation".
NO >> GO TO 2
2. CHECK WIPER & WASHER SWITCH
Check operation with normal wiper & washer switch installed.
Does it operate normally?
YES >> Replace wiper & washer switch. Refer to WW-76, "Removal and Installation".
NO >> GO TO 3
3. CHECK SWITCH BASE (SPIRAL CABLE)
Check operation with normal switch base (spiral cable) installed.
Does it operate normally?
YES >> Replace switch base (spiral cable). Refer to SR-7, "Removal and Installation".
NO >> Combination switch is normal.
System OUTPUT 1 OUTPUT 2 OUTPUT 3 OUTPUT 4 OUTPUT 5
INPUT 1 — FR WASHER FR WIPER LOW TURN LH TURN RH
INPUT 2 FR WIPER HI — FR WIPER INT PASSING HEADLAMP 1
INPUT 3 INT VOLUME 1 RR WASHER — HEADLAMP 2 HI BEAM
INPUT 4 RR WIPER INT INT VOLUME 3 AUTO LIGHT — TAIL LAMP
INPUT 5 INT VOLUME 2 RR WIPER RR FOG FR FOG —
JPMIA0121GB
BCS
BCM (BODY CONTROL MODULE)
BCS-35
< ECU DIAGNOSIS >
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ECU DIAGNOSIS
BCM (BODY CONTROL MODULE)
Reference ValueINFOID:0000000001451495
VALUES ON THE DIAGNOSIS TOOL
Monitor Item Condition Value/Status
AIR COND SWA/C switch OFF OFF
A/C switch ON ON
AUT LIGHT SYSOutside of the room is dark OFF
Outside of the room is bright ON
AUTO LIGHT SWLighting switch OFF OFF
Lighting switch AUTO ON
BACK DOOR SWBack door closed OFF
Back door opened ON
BATTERY VOLT
NOTE:
Diesel engine models
onlyIgnition switch ONApproximately the same as power
supply voltage
CDL LOCK SWDoor lock/unlock switch does not operate OFF
Press door lock/unlock switch to the LOCK side ON
CDL UNLOCK SWDoor lock/unlock switch does not operate OFF
Press door lock/unlock switch to the UNLOCK side ON
DOOR SW-ASPassenger door closed OFF
Passenger door opened ON
DOOR SW-DRDriver door closed OFF
Driver door opened ON
DOOR SW-RLRear LH door closed OFF
Rear LH door opened ON
DOOR SW-RRRear RH door closed OFF
Rear RH door opened ON
ELEC PWR CUT
NOTE:
Diesel engine models
onlyEngine runningFan switch ON (when engine coolant is
cool)
NOTE:
Depending on the ambient tempera-
ture, battery voltage, etc.OFF
The current status maintained with the
signal from ECM received.FREEZ
Fan switch OFF
Fan switch ON after engine warming
UP
NOTE:
Depending on the engine coolant
temperature, ambient temperature,
battery voltage, etc.INHBT
ENG COOLNT T
NOTE:
Diesel engine models
onlyEngine runningApproximately the same as engine
water temperature
BCS-36
< ECU DIAGNOSIS >
BCM (BODY CONTROL MODULE)
ENGINE RPM
NOTE:
Diesel engine models
onlyEngine runningApproximately the same as tachom-
eter reading
ENGINE RUNEngine stopped OFF
Engine running ON
ENGINE STATUS
NOTE:
Diesel engine models
onlyEngine stopped STOP
While the engine stalls STALL
Engine running RUN
At engine cranking CRA
FA N O N S I GFan switch OFF OFF
Fan switch ON ON
FR FOG SWFront fog lamp switch OFF OFF
Front fog lamp switch ON ON
FR WASHER SWFront washer switch OFF OFF
Front washer switch ON ON
FR WIPER LOWFront wiper switch OFF OFF
Front wiper switch LO ON
FR WIPER HIFront wiper switch OFF OFF
Front wiper switch HI ON
FR WIPER INTFront wiper switch OFF OFF
Front wiper switch INT ON
FR WIPER STOPAny position other than front wiper stop position OFF
Front wiper stop position ON
HAZARD SWWhen hazard switch is not pressed OFF
When hazard switch is pressed ON
LIGHT SW 1STLighting switch OFF OFF
Lighting switch 1st ON
H/L SW POSHeadlamp switch OFF OFF
Headlamp switch 1st ON
HI BEAM SWHigh beam switch OFF OFF
High beam switch HI ON
HOOD SWClose the hood
NOTE:
Vehicles without theft warning system are OFF-fixedOFF
Open the hood ON
H/L WASH SWNOTE:
The item is indicated, but not monitoredOFF
IGN ON SWIgnition switch OFF or ACC OFF
Ignition switch ON ON
IGN SW CANIgnition switch OFF or ACC OFF
Ignition switch ON ON
INT VOLUME Wiper intermittent dial is in a dial position 1 - 7 1 - 7
I-KEY LOCK
1LOCK button of Intelligent Key is not pressed OFF
LOCK button of Intelligent Key is pressed ON Monitor Item Condition Value/Status