Qashqai J11. Body Control System — part 1
BCS
BCS-1
ELECTRICAL & POWER CONTROL
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SECTION
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CONTENTS
BODY CONTROL SYSTEM
PRECAUTION . . . . . . . . . . . ...
PRECAUTIONS . . . . . . . . . . . . ...
Precautions for Removing Battery Terminal . . .....
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect . . . . . . . . .....
SYSTEM DESCRIPTION . . . . . . . ..
COMPONENT PARTS . . . . . . . . . .
BODY CONTROL SYSTEM . . . . . . . . . ....
BODY CONTROL SYSTEM : Component Parts
Location . . . . . . . . . . . . . . . . .....
POWER CONSUMPTION CONTROL SYSTEM . .....
POWER CONSUMPTION CONTROL SYSTEM :
Component Parts Location . . . . . . . . . ....
SYSTEM . . . . . . . . . . . . . . . .
BODY CONTROL SYSTEM . . . . . . . . . ..
BODY CONTROL SYSTEM : System Description
BODY CONTROL SYSTEM : Fail-safe . . . . ...
COMBINATION SWITCH READING SYSTEM . . .
COMBINATION SWITCH READING SYSTEM :
System Description . . . . . . . . . . . . .
SIGNAL BUFFER SYSTEM . . . . . . . . . ..
SIGNAL BUFFER SYSTEM : System Description
POWER CONSUMPTION CONTROL SYSTEM . ...
POWER CONSUMPTION CONTROL SYSTEM :
System Description . . . . . . . . . . . . .
SHIPPING MODE CONTROL SYSTEM . . . . .
SHIPPING MODE CONTROL SYSTEM : System
Description . . . . . . . . . . . . . . . ..
DIAGNOSIS SYSTEM (BCM) . . . . . . .
COMMON ITEM . . . . . . . . . . . . . . .
COMMON ITEM : CONSULT Function (BCM -
COMMON ITEM) . . . . . . . . . . . . . .
DOOR LOCK . . . . . . . . . . . . . . . ..
DOOR LOCK : Information . . . . . . . . . ..
DOOR LOCK : CONSULT Function (BCM -
DOOR LOCK) (Type 1) . . . . . . . . . . ...
DOOR LOCK : CONSULT Function (BCM -
DOOR LOCK) (Type 2) . . . . . . . . . . ...
DOOR LOCK : CONSULT Function (BCM -
DOOR LOCK) (Type 3) . . . . . . . . . . ...
DOOR LOCK : CONSULT Function (BCM -
DOOR LOCK) (Type 4) . . . . . . . . . . ...
DOOR LOCK : CONSULT Function (BCM -
DOOR LOCK) (Type 5) . . . . . . . . . . ...
DOOR LOCK : CONSULT Function (BCM -
DOOR LOCK) (Type 6) . . . . . . . . . . ...
MULTI REMOTE ENT . . . . . . . . . . . .
MULTI REMOTE ENT : CONSULT Function
(BCM - MULTI REMOTE ENT) (Type 3) . . . . .
MULTI REMOTE ENT : CONSULT Function
(BCM - MULTI REMOTE ENT) (Type 4) . . . . .
MULTI REMOTE ENT : CONSULT Function
(BCM - MULTI REMOTE ENT) (Type 6) . . . . .
REAR WINDOW DEFOGGER . . . . . . . . ...
REAR WINDOW DEFOGGER : CONSULT Func-
tion (BCM - REAR DEFOGGER) . . . . . . . .
BUZZER . . . . . . . . . . . . . . . . . .
BUZZER : CONSULT Function (BCM - BUZZER)
(With Intelligent Key System) . . . . . . . . ..
BUZZER : CONSULT Function (BCM - BUZZER)
(Without Intelligent Key System) . . . . . . . .
INT LAMP . . . . . . . . . . . . . . . . ...
INT LAMP : CONSULT Function (BCM - INT
LAMP) . . . . . . . . . . . . . . . . . ..
BCS-2
HEADLAMP : CONSULT Function (BCM - HEAD
LAMP) (LED Headlamp) . . . . . . . . . . .
HEADLAMP : CONSULT Function (BCM - HEAD
LAMP) (Halogen Headlamp) . . . . . . . . ..
WIPER . . . . . . . . . . . . . . . . . ...
WIPER : CONSULT Function - WIPER . . . . ..
FLASHER . . . . . . . . . . . . . . . . ..
FLASHER : CONSULT Function (BCM - FLASH-
ER) (LED Headlamp) . . . . . . . . . . . ..
FLASHER : CONSULT Function (BCM - FLASH-
ER) (Halogen Headlamp) . . . . . . . . . ...
INTELLIGENT KEY . . . . . . . . . . . . ...
INTELLIGENT KEY : Information . . . . . . ...
INTELLIGENT KEY : CONSULT Function (BCM -
INTELLIGENT KEY) (Type 1) . . . . . . . . .
INTELLIGENT KEY : CONSULT Function (BCM -
INTELLIGENT KEY) (Type 2) . . . . . . . . .
INTELLIGENT KEY : CONSULT Function (BCM -
INTELLIGENT KEY) (Type 5) . . . . . . . . .
COMB SW . . . . . . . . . . . . . . . . .
COMB SW : CONSULT Function (BCM - COMB
SW) . . . . . . . . . . . . . . . . . . .
BCM . . . . . . . . . . . . . . . . . . ...
BCM : CONSULT Function (BCM - BCM) . . . ..
IMMU . . . . . . . . . . . . . . . . . . .
IMMU : CONSULT Function (BCM - IMMU) (With
Intelligent Key System) . . . . . . . . . . ...
IMMU : CONSULT Function (BCM - IMMU) (With-
out Intelligent Key System) . . . . . . . . . .
BATTERY SAVER . . . . . . . . . . . . ....
BATTERY SAVER : CONSULT Function (BCM -
BATTERY SAVER) . . . . . . . . . . . . .
TRUNK . . . . . . . . . . . . . . . . . ..
TRUNK : Information . . . . . . . . . . . ..
TRUNK : CONSULT Function (BCM - TRUNK)
(Type 1) . . . . . . . . . . . . . . . . ..
TRUNK : CONSULT Function (BCM - TRUNK)
(Type 2) . . . . . . . . . . . . . . . . ..
TRUNK : CONSULT Function (BCM - TRUNK)
(Type 3) . . . . . . . . . . . . . . . . ..
TRUNK : CONSULT Function (BCM - TRUNK)
(Type 4) . . . . . . . . . . . . . . . . ..
TRUNK : CONSULT Function (BCM - TRUNK)
(Type 5) . . . . . . . . . . . . . . . . ..
TRUNK : CONSULT Function (BCM - TRUNK)
(Type 6) . . . . . . . . . . . . . . . . ..
THEFT ALM . . . . . . . . . . . . . . . ..
THEFT ALM : CONSULT Function (BCM -
THEFT) (With Intelligent Key System) . . . . ....
THEFT ALM : CONSULT Function (BCM -
THEFT) (Without Intelligent Key System) . . . ...
SIGNAL BUFFER . . . . . . . . . . . . . ..
SIGNAL BUFFER : CONSULT Function (BCM -
SIGNAL BUFFER) . . . . . . . . . . . . ..
ECU DIAGNOSIS INFORMATION . . . .
BCM . . . . . . . . . . . . . . . . ...
Reference Value . . . . . . . . . . . . . .
Fail-safe . . . . . . . . . . . . . . . . ..
DTC Inspection Priority Chart . . . . . . . ...
DTC Index . . . . . . . . . . . . . . . ..
WIRING DIAGRAM . . . . . . . . .
BCM . . . . . . . . . . . . . . . . ...
Wiring Diagram . . . . . . . . . . . . . ...
BASIC INSPECTION . . . . . . . . .
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT . . . . . . . . . . . ...
Description . . . . . . . . . . . . . . .
Work Procedure . . . . . . . . . . . . .
CONFIGURATION (BCM) . . . . . . . .
Description . . . . . . . . . . . . . . .
Work Procedure . . . . . . . . . . . . .
Configuration list . . . . . . . . . . . . ...
SHIPPING MODE CANCEL OPERATION . ...
Work Procedure . . . . . . . . . . . . .
DTC/CIRCUIT DIAGNOSIS . . . . . ...
U1000 CAN COMM . . . . . . . . . . ..
DTC Description . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
U1010 CONTROL UNIT (CAN) . . . . . .
DTC Description . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
U0415 VEHICLE SPEED . . . . . . . . ..
DTC Description . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
B2562 LOW VOLTAGE . . . . . . . . .
DTC Description . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
POWER SUPPLY AND GROUND CIRCUIT .
Diagnosis Procedure . . . . . . . . . . . .
COMBINATION SWITCH OUTPUT CIRCUIT ..
Diagnosis Procedure . . . . . . . . . . . .
COMBINATION SWITCH INPUT CIRCUIT . ..
Diagnosis Procedure . . . . . . . . . . . .
SYMPTOM DIAGNOSIS . . . . . . ...
COMBINATION SWITCH SYSTEM SYMP-
TOMS . . . . . . . . . . . . . . . .
BCS
BCS-3
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NORMAL OPERATING CONDITION . . . ...
Description . . . . . . . . . . . . . . .
REMOVAL AND INSTALLATION . . . .
BCM . . . . . . . . . . . . . . . . .
Removal and Installation . . . . . . . . . ...
COMBINATION SWITCH . . . . . . . .
BCS-4
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precautions for Removing Battery Terminal
INFOID:0000000010506860
• With the adoption of Auto ACC function, ACC power is automatically supplied by operating the intelligent key
or remote keyless entry or by opening/closing the driver side door. In addition, ACC power is supplied even
after the ignition switch is turned to the OFF position, i.e. ACC power is supplied for a certain fixed time.
• When disconnecting the 12V battery terminal, turn off the ACC
power before disconnecting the 12V battery terminal, observing
“How to disconnect 12V battery terminal” described below.
NOTE:
Some ECUs operate for a certain fixed time even after ignition
switch is turned OFF and ignition power supply is stopped. If the
battery terminal is disconnected before ECU stops, accidental DTC
detection or ECU data damage may occur.
• For vehicles with the 2-batteries, be sure to connect the main bat-
tery and the sub battery before turning ON the ignition switch.
NOTE:
If the ignition switch is turned ON with any one of the terminals of
main battery and sub battery disconnected, then DTC may be detected.
• After installing the 12V battery, always check "Self Diagnosis Result" of all ECUs and erase DTC.
NOTE:
The removal of 12V battery may cause a DTC detection error.
HOW TO DISCONNECT 12V BATTERY TERMINAL
Disconnect 12V battery terminal according to Instruction 1 or Instruction 2 described below.
For vehicles parked by ignition switch OFF, refer to Instruction 2.
INSTRUCTION 1
1.
Open the hood.
2.
Turn key switch to the OFF position with the driver side door opened.
3.
Get out of the vehicle and close the driver side door.
4.
Wait at least 3 minutes. For vehicle with the engine listed below, remove the battery terminal after a lapse
of the specified time.
CAUTION:
While waiting, never operate the vehicle such as locking, opening, and closing doors. Violation of
this caution results in the activation of ACC power supply according to the Auto ACC function.
5.
Remove 12V battery terminal.
CAUTION:
After installing 12V battery, always check self-diagnosis results of all ECUs and erase DTC.
INSTRUCTION 2 (FOR VEHICLES PARKED BY IGNITION SWITCH OFF)
1.
Unlock the door with intelligent key or remote keyless entry.
NOTE:
At this moment, ACC power is supplied.
2.
Open the driver side door.
3.
Open the hood.
4.
Close the driver side door.
5.
Wait at least 3 minutes.
SEF289H
D4D engine
: 20 minutes
HRA2DDT
: 12 minutes
K9K engine
: 4 minutes
M9R engine
: 4 minutes
R9M engine
: 4 minutes
V9X engine
: 4 minutes
BCS
PRECAUTIONS
BCS-5
< PRECAUTION >
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CAUTION:
While waiting, never operate the vehicle such as locking, opening, and closing doors. Violation of
this caution results in the activation of ACC power supply according to the Auto ACC function.
6.
Remove 12V battery terminal.
CAUTION:
After installing 12V battery, always check self-diagnosis results of all ECUs and erase DTC.
Precaution Necessary for Steering Wheel Rotation After Battery Disconnect
INFOID:0000000010506859
CAUTION:
Comply with the following cautions to prevent any error and malfunction.
• Before removing and installing any control units, first turn the ignition power source and accessory
power source to the OFF, then disconnect both battery cables.
• After finishing work, confirm that all control unit connectors are connected properly, then re-connect
both battery cables.
• Always use CONSULT to perform self-diagnosis as a part of each function inspection after finishing
work. If a DTC is detected, perform trouble diagnosis according to self-diagnosis results.
For vehicle with steering lock unit, if the battery is disconnected or discharged, the steering wheel will lock and
cannot be turned.
If turning the steering wheel is required with the battery disconnected or discharged, follow the operation pro-
cedure below before starting the repair operation.
OPERATION PROCEDURE
1.
Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2.
Open driver door.
3.
Turn the ignition switch to the ON position.
(At this time, the steering lock will be released.)
4.
Turn the ignition switch to OFF position with driver door open.
5.
Wait for 3 minutes or longer with driver door open.
NOTE:
• Do not close driver door because the steering wheel locks when driver door is closed.
• The auto acc function is adapted to this vehicle. For this reason, even when the ignition switch is turned
to OFF position, the accessory power source does not turned OFF and continues to be supplied for a
certain amount of time.
6.
Disconnect both battery cables. The steering lock will remain released with both battery cables discon-
nected and the steering wheel can be turned.
7.
Perform the necessary repair operation.
8.
When the repair work is completed, re-connect both battery cables. With the brake pedal released, turn
the ignition switch from OFF position to ON position, then to LOCK position. (The steering wheel will lock
when the ignition switch is turned to LOCK position.)
9.
Perform self-diagnosis check of all control units using CONSULT.
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000010435883
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the “SRS AIR BAG” and
“SEAT BELT” of this Service Manual.
WARNING:
Always observe the following items for preventing accidental activation.
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision that would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
BCS-6
< PRECAUTION >
PRECAUTIONS
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see “SRS AIR BAG”.
• Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-
vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
Always observe the following items for preventing accidental activation.
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the
ignition ON or engine running, never use air or electric power tools or strike near the sensor(s) with
a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the
battery, and wait at least 3 minutes before performing any service.
BCS
COMPONENT PARTS
BCS-7
< SYSTEM DESCRIPTION >
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SYSTEM DESCRIPTION
COMPONENT PARTS
BODY CONTROL SYSTEM
BODY CONTROL SYSTEM : Component Parts Location
INFOID:0000000010377986
RHD MODELS
LHD MODELS
BCM
Behind of glove box
JMMIA1751ZZ
BCS-8
< SYSTEM DESCRIPTION >
COMPONENT PARTS
POWER CONSUMPTION CONTROL SYSTEM
BCM
Behind of instrument panel (LH)
JMMIA1766ZZ
BCS
COMPONENT PARTS
BCS-9
< SYSTEM DESCRIPTION >
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POWER CONSUMPTION CONTROL SYSTEM : Component Parts Location
INFOID:0000000010377987
.
Combination meter
IPDM E/R
Refer to
SYSTEM : Component Parts Loca-
tion"
JMMIA1752ZZ
BCS-10
< SYSTEM DESCRIPTION >
SYSTEM
SYSTEM
BODY CONTROL SYSTEM
BODY CONTROL SYSTEM : System Description
INFOID:0000000010377988
OUTLINE
• BCM (Body Control Module) controls the various electrical components. It inputs the information required to
the control from CAN communication and the signal received from each switch and sensor.
• BCM has combination switch reading function for reading the operation status of combination switches (light,
turn signal, wiper and washer) in addition to a function for controlling the operation of various electrical com-
ponents. It also has the signal transmission function as the passed point of signal and the power saving con-
trol function that reduces the power consumption with the ignition switch OFF.
• BCM is equipped with the diagnosis function that performs the diagnosis with CONSULT and various set-
tings.
BCM CONTROL FUNCTION LIST
System
Reference
Combination switch reading system
BCS-13, "COMBINATION SWITCH READING SYSTEM : Sys-
tem Description"
Signal buffer system
BCS-17, "SIGNAL BUFFER SYSTEM : System Description"
Power consumption control system
BCS-18, "POWER CONSUMPTION CONTROL SYSTEM : Sys-
tem Description"
Shipping mode control system
BCS-20, "SHIPPING MODE CONTROL SYSTEM : System De-
scription"
Headlamp system
•
EXL-17, "HEADLAMP SYSTEM : System Description"
(LED
headlamp)
•
EXL-190, "HEADLAMP SYSTEM : System Description"
gen headlamp)
Auto light system
•
EXL-19, "AUTO LIGHT SYSTEM : System Description"
(LED
headlamp)
•
EXL-192, "AUTO LIGHT SYSTEM : System Description"
(Halogen headlamp)
High beam assist system
EXL-21, "HIGH BEAM ASSIST SYSTEM : System Description"
Daytime running light system
•
EXL-22, "DAYTIME RUNNING LIGHT SYSTEM : System De-
scription"
(LED headlamp)
•
EXL-193, "DAYTIME RUNNING LIGHT SYSTEM : System De-
scription"
(Halogen headlamp)
Turn signal and hazard warning lamp system
•
EXL-25, "TURN SIGNAL AND HAZARD WARNING LAMP
SYSTEM : System Description"
(LED headlamp)
•
EXL-194, "TURN SIGNAL AND HAZARD WARNING LAMP
SYSTEM : System Description"
(Halogen headlamp)
Parking, license plate and tail lamps system
•
EXL-26, "PARKING, LICENSE PLATE AND TAIL LAMP SYS-
TEM : System Description"
(LED headlamp)
•
EXL-195, "PARKING, LICENSE PLATE AND TAIL LAMP SYS-
TEM : System Description"
(Halogen headlamp)
Stop lamp system
•
EXL-28, "STOP LAMP SYSTEM : System Description"
(LED
headlamp)
•
EXL-198, "STOP LAMP SYSTEM : System Description"
(Halo-
gen headlamp)
Front fog lamp system
•
EXL-29, "FRONT FOG LAMP SYSTEM : System Description"
(LED headlamp)
•
EXL-198, "FRONT FOG LAMP SYSTEM : System Descrip-
tion"
(Halogen headlamp)
Rear fog lamp system
•
EXL-30, "REAR FOG LAMP SYSTEM : System Description"
(LED headlamp)
•
EXL-200, "REAR FOG LAMP SYSTEM : System Description"
(Halogen headlamp)
BCS
SYSTEM
BCS-11
< SYSTEM DESCRIPTION >
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Exterior lamp battery saver system
•
EXL-31, "EXTERIOR LAMP BATTERY SAVER SYSTEM :
System Description"
(LED headlamp)
•
EXL-200, "EXTERIOR LAMP BATTERY SAVER SYSTEM :
System Description"
(Halogen headlamp)
Interior room lamp control system
INL-8, "INTERIOR ROOM LAMP CONTROL SYSTEM : System
Description"
Interior room lamp battery saver system
INL-10, "INTERIOR ROOM LAMP BATTERY SAVER SYSTEM :
System Description"
Illumination control system
INL-12, "ILLUMINATION CONTROL SYSTEM : System Descrip-
tion"
Spicy illumination control system
INL-13, "SPICY ILLUMINATION CONTROL SYSTEM : System
Description"
Front wiper and washer system
•
WW-10, "FRONT WIPER AND WASHER SYSTEM (WITH
LIGHT & RAIN SENSOR) : System Description"
sor)
•
WW-13, "FRONT WIPER AND WASHER SYSTEM (WITH-
OUT LIGHT & RAIN SENSOR) : System Description"
(Without
rain sensor)
Rear wiper and washer system
WW-17, "REAR WIPER AND WASHER SYSTEM : System De-
scription"
Headlamp washer system
WW-19, "HEADLAMP WASHER SYSTEM : System Description"
Rear window defogger system
Warning chime system
WCS-7, "WARNING CHIME SYSTEM : System Description"
Power door lock system
•
(Type 1)
•
(Type 2)
•
(Type 3)
•
(Type 4)
•
(Type 5)
•
(Type 6)
NOTE:
Refer to
for details of type.
Intelligent Key system
•
DLK-33, "INTELLIGENT KEY SYSTEM : System Diagram"
(Type 1)
•
DLK-207, "INTELLIGENT KEY SYSTEM : System Diagram"
(Type 2)
•
DLK-657, "INTELLIGENT KEY SYSTEM : System Diagram"
(Type 5)
NOTE:
Refer to
for details of type.
Remote keyless entry system
•
DLK-389, "REMOTE KEYLESS ENTRY FUNCTION : System
Diagram"
(Type 3)
•
(Type 4)
•
(Type 6)
NOTE:
Refer to
for details of type.
Back door opener system
•
(Type 1)
•
(Type 2)
•
(Type 3)
•
(Type 4)
•
DLK-661, "BACK DOOR OPEN FUNCTION : System Dia-
gram"
(Type 5)
•
(Type 6)
NOTE:
Refer to
for details of type.
Engine start system
SEC-15, "INTELLIGENT KEY SYSTEM/ENGINE START FUNC-
TION : System Description"
System
Reference
BCS-12
< SYSTEM DESCRIPTION >
SYSTEM
BODY CONTROL SYSTEM : Fail-safe
INFOID:0000000010506757
FAIL-SAFE CONTROL BY DTC
BCM performs fail-safe control when any DTC are detected.
Nissan Vehicle Immobilizer System-NATS
•
SEC-19, "NISSAN ANTI-THEFT SYSTEM : System Descrip-
tion"
•
SEC-190, "NISSAN ANTI-THEFT SYSTEM : System Descrip-
tion"
(Without Intelligent Key)
Vehicle security system
•
SEC-22, "VEHICLE SECURITY SYSTEM : System Descrip-
tion"
•
SEC-191, "VEHICLE SECURITY SYSTEM : System Descrip-
tion"
(Without Intelligent Key)
Power window system
CAN gateway
System
Reference
Display contents of CONSULT
Fail-safe
B2190–00: NATS ANTENNA AMP
Inhibit engine cranking
B2191–00: DIFFERENCE OF KEY
Inhibit engine cranking
B2192–00: ID DISCORD BCM-ECM
Inhibit engine cranking
B2193–00: CHAIN OF BCM-ECM
Inhibit engine cranking
B2195–00: ANTI-SCANNING
Inhibit engine cranking
B2196–00: DONGLE NG
Inhibit engine cranking
B2198–00: NATS ANTENNA AMP
Inhibit engine cranking
B2557–00: VEHICLE SPEED
Inhibit steering lock
B2602–00: SHIFT POSITION
Inhibit steering lock
B2604–00: PNP/CLUTCH SW
Inhibit steering lock
B2608–00: STARTER RELAY
Inhibit engine cranking
B260F–00: ENG STATE SIG LOST
Inhibit engine cranking
B26F1–00: IGN RELAY OFF
Inhibit engine cranking
B26F2–00: IGN RELAY ON
Inhibit engine cranking
B27D4–00: BCM - S/L SENSOR CIRCUIT
Inhibit steering unlock
B27D5–00: S/L SENSOR TEST OUTPUT
Inhibit steering unlock
B27D6–00: S/L CAN COMM CIRCUIT
Inhibit steering lock
B27D7–00: S/L PWR RELAY
Inhibit steering lock
B27D8–00: S/L VEHICLE SPEED MALFUNCTION
Inhibit steering lock
B27D9–00: S/L IGN MALFUNCTION
Inhibit steering lock/unlock
B27DA–00: IPDM CAN COMM CIRCUIT
Inhibit steering lock
B27DC–00: S/L POWER SUPPLY
Inhibit steering lock
B27DD–00: BCM - S/L ID DISCORD
Inhibit steering lock
B27DE–00: S/L MECHANICAL MALFUNCTION
Inhibit steering lock
B27DF–00: S/L HIGH LEVEL MALFUNCTION
Inhibit steering lock/unlock
B27E0–00: S/L LOW LEVEL MALFUNCTION
Inhibit steering lock
B27E1–00: S/L SAFETY CIRCUIT
Inhibit steering lock
B27E5–00: S/L IGN OFF POSITION
Inhibit steering lock
B27E6–00: S/L ANTI-SCAN MODE
Inhibit steering lock
B27E8–00: S/L UNDETERMINED LOCK POS
Inhibit steering lock
U0415: VEHICLE SPEED
Inhibit steering lock
BCS
SYSTEM
BCS-13
< SYSTEM DESCRIPTION >
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REAR WIPER MOTOR PROTECTION
BCM detects the rear wiper stopping position according to the rear wiper stop position signal.
When the rear wiper stop position signal does not change for more than 5 seconds while driving the rear
wiper, BCM stops power supply to protect the rear wiper motor.
Condition of cancellation
1.
More than 1 minute is passed after the rear wiper stop.
2.
Turn rear wiper switch OFF.
3.
Operate the rear wiper switch or rear washer switch.
FAIL-SAFE CONTROL OF COMBINATION SWITCH READING FUNCTION CAUSED BY LOW
POWER SUPPLY VOLTAGE
If voltage of battery power supply lower, BCM maintains combination switch reading to the status when input
voltage is less than approximately 9 V.
NOTE:
When voltage of battery power supply is approximately 9 V or more, combination switch reading function
returns to normal operation.
COMBINATION SWITCH READING SYSTEM
COMBINATION SWITCH READING SYSTEM : System Description
INFOID:0000000010377990
SYSTEM DIAGRAM
OUTLINE
• BCM reads the status of the combination switch (light, turn signal, wiper and washer) and recognizes the
status of each switch.
• BCM has a combination of 5 output terminals (OUTPUT 1 - 5) and 5 input terminals (INPUT 1 - 5). It reads a
maximum of 20 switch status.
COMBINATION SWITCH MATRIX
JMMIA1753GB
BCS-14
< SYSTEM DESCRIPTION >
SYSTEM
Combination switch circuit
Combination switch INPUT-OUTPUT system list
COMBINATION SWITCH READING FUNCTION
Description
• BCM reads the status of the combination switch at 10 ms interval
normally.
NOTE:
BCM reads the status of the combination switch at 60 ms interval
when BCM is controlled at low power consumption control mode.
• BCM operates as follows and judges the status of the combination switch.
- It operates the transistor on OUTPUT side in the following order: OUTPUT 5
→
4
→
3
→
2
→
1, and outputs
voltage waveform.
- The voltage waveform of OUTPUT corresponding to the formed circuit is input into the interface on INPUT
side if any (1 or more) switches are ON.
System
OUTPUT 1
OUTPUT 2
OUTPUT 3
OUTPUT 4
OUTPUT 5
INPUT 1
—
HI BEAM
PASSING
RR FOG
FR FOG
INPUT 2
WIP VOLUME 1
—
HEADLAMP
AUTO LIGHT
TAIL LAMP
INPUT 3
FR WASHER
RR WASHER
—
TURN LH
TURN RH
INPUT 4
FR WIPER LO
FR WIPER HI
FR WIPER INT/AUTO
—
LIGHT OFF
INPUT 5
WIP VOLUME 2
WIP VOLUME 3
RR WIPER INT
RR WIPER ON
—
JMMIA1754GB
JMMIA1637GB
BCS
SYSTEM
BCS-15
< SYSTEM DESCRIPTION >
C
D
E
F
G
H
I
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B
A
O
P
N
- It reads this change of the voltage as the status signal of the combination switch.
Operation Example
In the following operation example, the combination of the status signals of the combination switch is replaced
as follows: INPUT 1 - 5 to “1 - 5” and OUTPUT 1 - 5 to “A - E”.
Example 1: When a switch (TURN RH switch) is turned ON
• The circuit between OUTPUT 5 and INPUT 3 is formed when the TURN RH switch is turned ON.
• BCM detects the combination switch status signal “3E” when the signal of OUTPUT 5 is input to INPUT 3.
• BCM judges that the TURN RH switch is ON when the signal “3E” is detected.
Example 2: When some switches (TURN RH switch, FR WASHER switch) are turned ON
JMMIA1757GB
JMMIA1755GB
BCS-16
< SYSTEM DESCRIPTION >
SYSTEM
• The circuits between OUTPUT 5 and INPUT 3 and between OUTPUT 1 and INPUT 3 are formed when the
TURN RH switch and FR WASHER switch are turned ON.
• BCM detects the combination switch status signal “3AE” when the signals of OUTPUT 1 and OUTPUT 5 are
input to INPUT 3.
• BCM judges that the TURN RH switch and FR WASHER switch are ON when the signal “3AE” is detected.
WIPER VOLUME DIAL POSITION
• BCM judges the WIP VOLUME 1 - 4 by the status of WIP VOLUME 1, 2 and 3 switches. (With auto light sys-
tem)
• BCM judges the WIP VOLUME 1 - 5 by the status of WIP VOLUME 1, 2 and 3 switches. (Without auto light
system)
NOTE:
For details of wiper volume dial position, refer to
WW-10, "FRONT WIPER AND WASHER SYSTEM (WITH
LIGHT & RAIN SENSOR) : System Description"
(with rain sensor) or
WASHER SYSTEM (WITHOUT LIGHT & RAIN SENSOR) : System Description"
(without rain sensor).
SIGNAL BUFFER SYSTEM
JMMIA1756GB
Wiper volume
Switch status
WIP VOLUME 1
WIP VOLUME 2
WIP VOLUME 3
1
ON
ON
OFF
2
ON
OFF
OFF
3
OFF
OFF
OFF
4
OFF
OFF
ON
Wiper volume
Switch status
WIP VOLUME 1
WIP VOLUME 2
WIP VOLUME 3
1
ON
ON
OFF
2
ON
OFF
OFF
3
OFF
OFF
OFF
4
OFF
OFF
ON
5
OFF
ON
ON
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