ipdm NISSAN TIIDA 2007 Service Repair Manual

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

BCS
DIAGNOSIS SYSTEM (BCM)
BCS-21
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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-22
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DIAGNOSIS SYSTEM (BCM)
1: Factory setting
2: If equipped
DATA MONITOR
ACTIVE TEST
FLASHER
FLASHER : CONSULT-III Function (BCM - FLASHER)INFOID:0000000001451472
WORK SUPPORT
DATA MONITOR
Monitor Item
[Unit]Description
IGN ON SW [ON/OFF] Ignition switch ON status judged from ignition power supply.
FR WIPER HI [ON/OFF]
Each switch status that BCM judges from the combination switch reading function. FR WIPER LOW [ON/OFF]
FR WIPER INT [ON/OFF]
FR WASHER SW [ON/OFF]
INT VOLUME [1 - 7] Each switch status that BCM judges from the combination switch reading function.
FR WIPER STOP [ON/OFF]Front wiper motor (stop position) status received from IPDM E/R with CAN communica-
tion.
VEHICLE SPEED [km/h]The value of the vehicle speed signal received from combination meter with CAN com-
munication.
H/L SW POS [ON/OFF]
RR WIPER ON [ON/OFF]
Each switch status that BCM judges from the combination switch reading function. RR WIPER INT [ON/OFF]
RR WASHER SW [ON/OFF]
RR WIPER STOP [ON/OFF] Rear wiper motor (stop position) status input from the rear wiper motor.
REVERSE SW CAN [ON/OFF] Transmission reverse position moitored via CAN.
Test Item Operation Description
HEADLAMP WASH-
ERONTransmits the headlamp washer request signal to IPDM E/R with CAN communication to
operate the headlamp washer operation.
FR WIPERHITransmits the front wiper request signal (HI) to IPDM E/R with CAN communication to op-
erate the front wiper HI operation.
LOTransmits the front wiper request signal (LO) to IPDM E/R with CAN communication to
operate the front wiper LO operation.
INTTransmits the front wiper request signal (INT) to IPDM E/R with CAN communication to
operate the front wiper INT operation.
OFF Stops transmitting the front wiper request signal to stop the front wiper operation.
RR WIPERON Outputs the voltage to operate the rear wiper motor.
OFF Stops the voltage to stop.
Work Item Description
HAZARD LAMP SETOperation MODE1 MODE2 MODE3
MODE4
Keyfob operation Lock Unlock Lock Unlock Lock Unlock Lock Unlock
Hazard lamp flash - - - Twice Once - Once Twice

BCS-26
< FUNCTION DIAGNOSIS >
DIAGNOSIS SYSTEM (BCM)
*: Each lamp switch is in ON position.
THEFT ALM
THEFT ALM : CONSULT-III Function (BCM - THEFT ALM)INFOID:0000000001451479
WORK SUPPORT
SIGNAL BUFFER
SIGNAL BUFFER : CONSULT-III Function (BCM - SIGNAL BUFFER)INFOID:0000000001451480
DATA MONITOR
ACTIVE TEST
PTC HEATER
PTC HEATER : CONSULT-III Function (BCM - PTC HEATER)INFOID:0000000001451481
DATA MONITOR
ACTIVE TEST
Work Item Description
SECURITY ALARM SETVehicle security function mode can be changed in this mode.
 ON: Vehicle security function is ON.
 OFF: Vehicle security function is OFF.
Monitor Item
[Unit]Description
OIL PRESS SW [ON/OFF] Displays the status of oil pressure switch received from IPDM E/R via CAN communication.
Test Item Operation Description
OIL PRESSURE SWOFF OFF
ONBCM transmits the oil pressure switch signal to the combination meter via CAN communica-
tion, which illuminates the oil pressure warning lamp in the combination meter.
Monitor Item
[Unit]Description
ELEC PWR CUT
[OFF/FREEZ/INHBT]Indicate [OFF/FREEZ/INHBT] condition of the PTC heater states.
FA N O N S I G
[On/Off]Displays [FAN (ON)/FAN (OFF)] status as judged from blower fan motor signal.
ENGINE STATUS
[STOP/STAL/RUN/CRA]Indicate [STOP/STALL/RUN/CRA] condition of the engine states.
ENG COOLNT T
[°C]The engine coolant temperature (determined by the signal voltage of the engine coolant tem-
perature sensor) is displayed.
BATTERY VOLT
[V]The power supply voltage of BCM is displayed.
ENGINE RPM
[rpm]Indicates the engine speed computed from the signal of the crankshaft position sensor.
OUTSIDE TEMP
[°C]The outside air temperature (determined by the signal voltage of the OAT sensor) is displayed.

BCS-28
< COMPONENT DIAGNOSIS >
U1000 CAN COMM CIRCUIT
COMPONENT DIAGNOSIS
U1000 CAN COMM CIRCUIT
DescriptionINFOID:0000000001451482
Refer to LAN-33, "CAN Communication Signal Chart".
DTC LogicINFOID:0000000001451483
DTC DETECTION LOGIC
Diagnosis ProcedureINFOID:0000000001451484
1. PERFORM SELF DIAGNOSTIC
1. Turn ignition switch ON and wait for 2 seconds or more.
2. Check “Self Diagnostic Result” of BCM.
Is
“CAN COMM CIRCUIT” displayed?
YES >> Refer to LAN-22, "Trouble Diagnosis Flow Chart".
NO >> Refer to GI-55, "
Intermittent Incident".
DTCCONSULT-III display
descriptionDTC Detection Condition Possible cause
U1000 CAN COMM CIRCUITWhen BCM cannot communicate CAN com-
munication signal continuously for 2 sec-
onds or more.Any item (or items) of the following listed below is
malfunctioning in CAN communication system.
Transmission
 Receiving (ECM)
 Receiving (METER/M&A)
 Receiving (TCM)
 Receiving (MULTI AV)
 Receiving (IPDM E/R)
 Receiving (I-KEY)

CHG-36
< FUNCTION DIAGNOSIS >[K9K]
CHARGING SYSTEM
FUNCTION DIAGNOSIS
CHARGING SYSTEM
System DiagramINFOID:0000000001724501
System DescriptionINFOID:0000000001724502
The generator provides DC voltage to operate the vehicle's electrical system and to keep the battery charged.
The voltage output is controlled by the IC regulator.
Component DescriptionINFOID:0000000001724503
ALMIA0327GB
Component part Description
GeneratorTerminal “1” Refer to CHG-38, "
Description".
Terminal “2” Refer to CHG-40, "
Description".
Terminal “3” Monitors charge voltage.
Combination meter (Charge warning lamp)The IC regulator warning function activates to illuminate the
charge warning lamp if any of the following symptoms occur while
generator is operating:
 Excessive voltage is produced.
 No voltage is produced.
IPDM E/R Supplies charge voltage to terminal "3" of generator.

CHG
CHARGING SYSTEM PRELIMINARY INSPECTION
CHG-37
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COMPONENT DIAGNOSIS
CHARGING SYSTEM PRELIMINARY INSPECTION
Inspection ProcedureINFOID:0000000001724507
1.CHECK BATTERY TERMINALS CONNECTION
Check if battery terminals are clean and tight.
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair battery terminals connection.
2.CHECK FUSE
Check for blown fuse and fusible link.
Is the inspection result normal?
YES >> GO TO 3
NO >> Be sure to eliminate cause of malfunction before installing new fuse or fusible link.
3.CHECK GENERATOR CASE GROUND
Verify generator case ground is clean and tight.
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair connection.
4.CHECK DRIVE BELT TENSION
Check drive belt tension. Refer to XX-XX, "*****"
.
Is the inspection result normal?
YES >> Inspection end.
NO >> Repair as needed.
Unit Power supply terminals Power source
GeneratorBattery (terminal 3) IPDM E/R
Battery (terminal 1) Fusible Link A
Combination meter Ignition switch ON (terminal 2) Fuse 14

DEF-6
< FUNCTION DIAGNOSIS >
REAR WINDOW DEFOGGER SYSTEM
FUNCTION DIAGNOSIS
REAR WINDOW DEFOGGER SYSTEM
System DiagramINFOID:0000000001697541
System DescriptionINFOID:0000000001697542
Operation Description
 Turn rear window defogger switch ON when the ignition switch is turned ON. Then controller (auto amp.)
(rear window defogger switch) transmits rear window defogger switch signal to BCM.
 BCM turns rear window defogger relay ON when rear window defogger switch signal is received.
 Rear window defogger and door mirror defogger (with door mirror defogger) are supplied with power and
operate when rear window defogger relay turns ON.
 BCM transmits rear window defogger control signal to IPDM E/R via CAN communication when rear window
defogger operates.
 Rear window defogger ON is displayed when controller (auto amp.) receives signals.
Timer function
 BCM turns rear window defogger relay ON for approximately 15 minutes when rear window defogger switch
is turned ON while ignition switch is ON. It makes rear window defogger and door mirror defogger (with door
mirror defogger) operate.
 Timer is canceled after pressing rear window defogger switch again during timer operation. Then BCM turns
rear window defogger relay OFF. The same reaction also occurs during timer operation, if the ignition switch
is turned OFF.
INPUT/OUTPUT SIGNAL CHART
*: With door mirror defogger
ALLIA0183GB
Switch Input signal to BCM BCM function Acutuator
Rear window defogger switch Defogger switch signal
Rear window defogger and door
mirror defogger
* controlRear window defogger
Door mirror defogger *Push button ignition switch Ignition signal