NISSAN TIIDA 2007 Service Repair Manual

BCS-6
< BASIC INSPECTION >
INSPECTION AND ADJUSTMENT
>> WORK END
MANUAL SETTING ITEM
Items Setting value
HANDLE LHD
PTC HEATER 2 PTC
AUTO LIGHT WITH⇔WITHOUT
KEYLESS ENTRY WITH⇔WITHOUT
DTRL WITH⇔WITHOUT
THEFT ALARM WITHOUT
AUTO SETTING ITEM
RAIN SENSOR WITH or WITHOUT
H/L WSR SWTRG FR WSR SW
H/L_BULB H4 HALOGEN or DEFAULT
FR FOG LAMP WITH or WITHOUT
DONGLE WITH or WITHOUT
SUPER LOCK WITHOUT
I-KEY WITH or WITHOUT
DOOR/L SPEED WITH
H/L BAT SAVER WITH
KEY WARNING MODE1
R LAMP LOGIC MODE2

BCS
BODY CONTROL SYSTEM
BCS-7
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FUNCTION DIAGNOSIS
BODY CONTROL SYSTEM
System DescriptionINFOID:0000000001451453
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 consump-
tion control function that reduces the power consumption with the ignition switch OFF.
 BCM is equipped with the diagnosis function that performs the diagnosis with CONSULT-III and various set-
tings.
BCM control function list
System Refer to
Combination switch reading systemBCS-9, "
System Diagram"
Signal buffer systemBCS-13, "System Diagram"
Power consumption control systemBCS-14, "System Diagram"
Auto light systemEXL-12, "System Diagram"
Turn signal and hazard warning lamp systemEXL-22, "System Diagram"
Headlamp systemEXL-8, "System Diagram"
Front fog lamp systemEXL-19, "System Diagram"
Rear fog lamp systemEXL-21, "System Diagram"
Daytime light systemEXL-17, "System Diagram"
Interior room lamp control systemINL-5, "System Diagram"
Interior room lamp battery saver systemINL-12, "BATTERY SAVER : CONSULT-III Function (BCM - BATTERY SAV-
ER)"
Front wiper and washer systemWW-4, "System Diagram"
Rear wiper and washer systemWW-9, "System Diagram"
Headlamp washer systemWW-12, "System Diagram"
Warning chime systemWCS-4, "WARNING CHIME SYSTEM : System Diagram"
Door lock system WITH I-KEY, WITHOUT SUPER LOCK: DLK-20, "
DOOR LOCK AND UN-
LOCK SWITCH : System Diagram"
 WITH I-KEY & SUPER LOCK: DLK-244, "DOOR LOCK AND UNLOCK
SWITCH : System Diagram"
 WITHOUT I-KEY & SUPER LOCK: DLK-473, "DOOR LOCK AND UN-
LOCK SWITCH : System Diagram"
 WITHOUT I-KEY, WITH SUPER LOCK: DLK-614, "DOOR LOCK AND UN-
LOCK SWITCH : System Diagram"
(NATS) Nissan anti-theft system WITH INTELLIGENT KEY SYSTEM: SEC-12, "System Diagram"
 WITHOUT INTELLIGENT KEY SYSTEM: SEC-84, "System Diagram"
Rear window defogger systemDEF-6, "System Diagram"
Remote keyless entry system WITHOUT I-KEY & SUPER LOCK: DLK-475, "
REMOTE KEYLESS EN-
TRY : System Diagram"
 WITHOUT I-KEY, WITH SUPER LOCK: DLK-614, "DOOR LOCK AND UN-
LOCK SWITCH : System Diagram"
Intelligent Key system WITH I-KEY, WITHOUT SUPER LOCK: DLK-23, "
INTELLIGENT KEY :
System Diagram"
 WITH I-KEY & SUPER LOCK: DLK-244, "DOOR LOCK AND UNLOCK
SWITCH : System Diagram"

BCS-8
< FUNCTION DIAGNOSIS >
BODY CONTROL SYSTEM
Component Parts Location
INFOID:0000000001451454
 BCM (1) M18, M19, M20 (view with glove box removed)
Power window systemPWC-6, "SystemDiagram"
PTC heater control systemHAC-142, "PTC HEATER (300 WATT) : PTC Heater System Description"
System Refer to
WKIA5663E

BCS
COMBINATION SWITCH READING SYSTEM
BCS-9
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COMBINATION SWITCH READING SYSTEM
System DiagramINFOID:0000000001451455
System DescriptionINFOID:0000000001451456
OUTLINE
 BCM reads the status of the combination switch (light, turn signal, wiper and washer) and recognizes the
status of each switch.
 BCM is 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
Combination switch circuit
Combination switch INPUT-OUTPUT system list
JPMIA0120GB
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
JPMIA0121GB

BCS-10
< FUNCTION DIAGNOSIS >
COMBINATION SWITCH READING SYSTEM
NOTE:
Headlamp has a dual system switch.
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 20 ms interval when BCM is controlled at low power con-
sumption control mode.
 BCM operates as follows and judges the status of the combination switch.
- INPUT 1 - 5 outputs the voltage waveforms of 5 systems simultaneously.
- It operates the transistor on OUTPUT side in the following order: OUTPUT 5 → 4 → 3 → 2 → 1.
- The voltage waveform of INPUT corresponding to the formed circuit changes according to the operation of
the transistor on OUTPUT side if any (1 or more) switches are ON.
- 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
INPUT 4 RR WIPER INT INT VOLUME 3 AUTO LIGHT — TAIL LAMP
INPUT 5 INT VOLUME 2 RR WIPER RR FOG FR FOG —System OUTPUT 1 OUTPUT 2 OUTPUT 3 OUTPUT 4 OUTPUT 5
JPMIA0067GB
JPMIA0068GB

BCS
COMBINATION SWITCH READING SYSTEM
BCS-11
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 The circuit between INPUT 1 and OUTPUT 5 is formed when the TURN RH switch is turned ON.
 BCM detects the combination switch status signal “1E” when the signal of OUTPUT 5 is input to INPUT 1.
 BCM judges that the TURN RH switch is ON when the signal “1E” is detected.
Example 2: When some switches (turn RH switch, front wiper LO switch) are turned ON
 The circuits between INPUT 1 and OUTPUT 5 and between INPUT 1 and OUTPUT 3 are formed when the
TURN RH switch and FR WIPER LOW switch are turned ON.
 BCM detects the combination switch status signal “1CE” when the signals of OUTPUT 3 and OUTPUT 5 are
input to INPUT 1.
 BCM judges that the TURN RH switch and FR WIPER LOW switch are ON when the signal “1CE” is
detected.
WIPER INTERMITTENT DIAL POSITION SETTING (FRONT WIPER INTERMITTENT OPERATION)
BCM judges the wiper intermittent dial 1 - 7 by the status of INT VOLUME 1, 2 and 3 switches.
JPMIA0122GB
JPMIA0123GB

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
SIGNAL BUFFER SYSTEM
BCS-13
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SIGNAL BUFFER SYSTEM
System DiagramINFOID:0000000001451458
System DescriptionINFOID:0000000001451459
OUTLINE
BCM has the signal transmission function that outputs/transmits each input/received signal to each unit.
Signal transmission function list
JPMIA0124GB
Signal name Input Output Description
Door switch signal Any door switch Combination meter (CAN)
 IPDM E/R (CAN)
 Intelligent Key unit (CAN)
 NAVI control unit (CAN)Inputs the door switch signal
and transmits it via CAN com-
munication.
Stop lamp switch signal Stop lamp switchTCM (CAN)
ECM (CAN)Inputs the stop lamp switch sig-
nal and transmits the stop lamp
switch signal via CAN commu-
nication.
Oil pressure switch signal IPDM E/R (CAN) Combination meter (CAN)Transmits the received oil pres-
sure switch signal via CAN
communication.

BCS-14
< FUNCTION DIAGNOSIS >
POWER CONSUMPTION CONTROL SYSTEM
POWER CONSUMPTION CONTROL SYSTEM
System DiagramINFOID:0000000001451460
System DescriptionINFOID:0000000001451461
OUTLINE
 BCM incorporates a power consumption control function that reduces the power consumption according to
the vehicle status.
 BCM switches the status (control mode) by itself with the power saving control function. It performs the sleep
request to each unit [IPDM E/R, combination meter and Intelligent Key unit (with Intelligent Key)] that oper-
ates with the ignition switch OFF.
Normal mode (wake-up)- CAN communication is normally performed with other units
- Each control with BCM is operating properly
CAN communication sleep mode (CAN sleep)- CAN transmission is stopped
- Control with BCM only is operating
Low power consumption mode (BCM sleep)- Low power consumption control is active
- CAN transmission is stopped
LOW POWER CONSUMPTION CONTROL WITH BCM
BCM reduces the power consumption with the following operation in the low power consumption mode.
 The reading interval of the each switches changes from 10 ms interval to 20 ms interval.
Sleep mode activation
 BCM receives the sleep-ready signal (ready) from IPDM E/R, combination meter and Intelligent Key unit
(with Intelligent Key) via CAN communication.
 BCM transmits the sleep wake up signal (sleep) to each unit when all of the CAN sleep conditions are ful-
filled.
 Each unit stops the transmission of CAN communication with the sleep wake up signal. BCM is in CAN com-
munication sleep mode.
 BCM is in the low power consumption mode and perform the low power consumption control when all of the
BCM sleep conditions are fulfilled with CAN sleep condition.
JPMIA0125GB

BCS
POWER CONSUMPTION CONTROL SYSTEM
BCS-15
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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