ignition NISSAN TIIDA 2007 Service Repair Manual

WCS
THE SEAT BELT WARNING CONTINUES SOUNDING, OR DOES NOT SOUND
WCS-77
< SYMPTOM DIAGNOSIS >
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THE SEAT BELT WARNING CONTINUES SOUNDING, OR DOES NOT
SOUND
DescriptionINFOID:0000000001722958
 Seat belt warning does not sound even though driver seat belt is not fastened.
 Seat belt warning sounds even though driver seat belt is fastened.
Diagnosis ProcedureINFOID:0000000001722959
1.CHECK WARNING CHIME OPERATION
1. With key removed from key switch and the front door (driver side) open, turn lighting switch to 1st or 2nd
position.
2. Return lighting switch to off position, and insert key into key switch.
Does warning chime sound for both steps?
YES >> GO TO 2
NO >> Replace combination meter. Refer to MWI-94, "
Removal and Installation".
2.CHECK SEAT BELT WARNING LAMP
1. Turn ignition switch ON.
2. Check the operation of the seat belt warning lamp in the combination meter.
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-57, "Removal and Installation of BCM".
NO >> GO TO 3
3.CHECK SEAT BELT BUCKLE SWITCH CIRCUIT
Perform inspection of the seat belt buckle switch circuit. Refer to WCS-24, "
DiagnosisProcedure".
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair harness or connector.
4.CHECK SEAT BELT BUCKLE SWITCH UNIT
Perform a unit inspection for the seat belt buckle switch. Refer to WCS-25, "
Component Inspection".
Is the inspection result normal?
YES >> Replace the combination meter. Refer to MWI-94, "Removal and Installation".
NO >> Replace the seat belt buckle switch (driver side).Seat belt fastened : OFF
Seat belt not fastened : ON

WCS-78
< SYMPTOM DIAGNOSIS >
THE KEY WARNING DOES NOT SOUND
THE KEY WARNING DOES NOT SOUND
DescriptionINFOID:0000000001722960
Key warning does not sound even though key is in ignition and front door (driver side) is opened.
Diagnosis ProcedureINFOID:0000000001722961
1.CHECK WARNING CHIME OPERATION
With key removed from the ignition and the front door (driver side) open, turn the lighting switch to 1st or 2nd
position.
Does warning chime sound?
YES >> GO TO 2
NO >> Replace combination meter. Refer to MWI-94, "
Removal and Installation".
2.CHECK KEY SWITCH CIRCUIT
Perform inspection of the key switch circuit. Refer to WCS-26, "
DiagnosisProcedure" (with Intelligent Key) or
WCS-28, "
DiagnosisProcedure" (without Intelligent Key).
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair harness or connector.
3.CHECK KEY SWITCH
Perform a unit inspection for the key switch. Refer to WCS-27, "
Component Inspection" (with Intelligent Key)
or WCS-29, "
Component Inspection" (without Intelligent Key).
Is the inspection result normal?
YES >> Replace the BCM. Refer to BCS-57, "Removal and Installation of BCM".
NO >> Replace the key switch and ignition knob switch (with Intelligent Key) or key switch and key lock
solenoid (without Intelligent Key).

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< FUNCTION DIAGNOSIS >
FRONT WIPER AND WASHER SYSTEM
FUNCTION DIAGNOSIS
FRONT WIPER AND WASHER SYSTEM
System DiagramINFOID:0000000001366592
System DescriptionINFOID:0000000001366593
OUTLINE
The front wiper is controlled by each function of BCM and IPDM E/R.
Control by BCM
• Combination switch reading function
 Front wiper control function
Control by IPDM E/R
 Front wiper control function
 Relay control function
FRONT WIPER BASIC OPERATION
 BCM detects the combination switch condition by the combination switch reading function.
 BCM transmits the front wiper request signal to IPDM E/R with CAN communication depending on each
operating condition of the front wiper.
 IPDM E/R turns ON/OFF the integrated front wiper relay and the front wiper high relay according to the front
wiper request signal. IPDM E/R provides the power supply to operate the front wiper HI/LO operation.
FRONT WIPER LO OPERATION
 BCM transmits the front wiper request signal (LO) to IPDM E/R with CAN communication according to the
front wiper LO operating condition.
Front wiper LO operating condition
- Ignition switch ON
- Front wiper switch LO or front wiper switch MIST (while pressing)
 IPDM E/R turns ON the integrated front wiper relay according to the front wiper request signal (LO).
FRONT WIPER HI OPERATION
 BCM transmits the front wiper request signal (HI) to IPDM E/R with CAN communication according to the
front wiper HI operating condition.
Front wiper HI operating condition
- Ignition switch ON
- Front wiper switch HI
 IPDM E/R turns ON the integrated front wiper relay and the front wiper high relay according to the front wiper
request signal (HI).
FRONT WIPER INT OPERATION (LINKED WITH VEHICLE SPEED)
ALLIA0317GB

FRONT WIPER AND WASHER SYSTEM
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 BCM transmits the front wiper request signal (INT) to IPDM E/R with CAN communication according to the
front wiper INT operation condition and the intermittent operation delay interval judged value.
Front wiper INT operating condition- Ignition switch ON
- Front wiper switch INT
Intermittent operation delay interval judgment- BCM calculates the intermittent operation delay interval from the vehicle speed signal received from the
wiper dial position and the combination meter with CAN communication.
 IPDM E/R turns the integrated front wiper relay ON so that the front wiper is operated only once according to
the front wiper request signal (INT).
 BCM detects stop position/except stop position of the front wiper motor according to the front wiper stop
position signal received from IPDM E/R with CAN communication.
 BCM transmits the front wiper request signal (INT) again after the intermittent operation delay interval after
the front wiper motor is stopped.
FRONT WIPER AUTO OPERATION (IF EQUIPPED)
 BCM receives the wiping speed request signal from the rain sensor with the light and rain sensor serial link.
 BCM judges the auto wiping condition depending on the wiping speed request signal and the rain sensor
sensitivity setting under front wiper AUTO operating condition.
 BCM transmits the front wiper request signals (LO or HI) to the IPDM E/R through CAN communication line
according to the auto wiping condition.
NOTE:
When the wiper volume is turned down at 1 level with front wiper AUTO operating condition, BCM transmits
front wiper request signal (LO) to IPDM E/R with CAN communication.
Front wiper AUTO operating condition- Ignition switch ON
- Front wiper switch AUTO
Rain sensor sensitivity setting- BCM determines rain sensor sensitivity according to a wiper volume.
Wiper intermittent dial posi-
tionIntermittent
operation
intervalIntermittent operation delay Interval (s)
Vehicle speed
Vehicle stopped or
less than 5 km/h
(3.1 MPH)5 km/h (3.1 MPH)
or more or less
than 35 km/h (21.7
MPH)35 km/h (21.7
MPH) or more or
less than 65 km/h
(40.4 MPH)65 km/h (40.4
MPH) or more
1Short
↑
↓
Long0.8 0.6 0.4 0.24
2 4321.2
3107.553
4161284.8
5 2418127.2
6 3224169.6
7 4231.52112.6
JPLIA0094GB

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< FUNCTION DIAGNOSIS >
FRONT WIPER AND WASHER SYSTEM
 IPDM E/R turns ON the integrated front wiper relay and front wiper HI relay according to the front wiper
request signal (LO or HI).
 Light and rain sensor transmits rain sensor signal to BCM for HI operation immediately after sensing the
raindrops increase under the wiper motor LO operating with the front wiper switch AUTO.
FRONT WIPER AUTO STOP OPERATION
 BCM stops transmitting the front wiper request signal when the front wiper switch is turned OFF.
 IPDM E/R detects the front wiper auto stop signal from the front wiper motor and detects the front wiper
motor position (stop position/except stop position).
 When the front wiper request signal is stopped, IPDM E/R turns ON the front wiper relay until the front wiper
motor returns to the stop position.
NOTE:
 BCM stops the transmitting of the front wiper request signal when the ignition switch is OFF.
 IPDM E/R turns the front wiper relay OFF when the ignition switch is OFF.
FRONT WIPER OPERATION LINKED WITH WASHER
 BCM transmits the front wiper request signal (LO) to IPDM E/R with CAN communication according to the
washer linked operating condition of the front wiper.
 BCM transmits the front wiper request signal (LO) so that the front wiper operates approximately 3 times
when the front washer switch OFF is detected.
Washer linked operating condition of front wiper- Ignition switch ON
- Front washer switch ON (0.4 second or more)
 IPDM E/R turns ON the integrated front wiper relay according to the front wiper request signal (LO).
 The front and rear washer motor is grounded through the combination switch with the front washer switch
ON.
FRONT WIPER DROP WIPE OPERATION
 BCM controls the front wiper to operate once according to the conditions of front wiper drop wipe operation.
Front wiper drop wipe operating condition- Ignition switch ON
- Front wiper switch OFF
Wiper intermittent dial posi-
tionSensitivity
1
High sensitivity
2
3
Medium−high sensitivity
4
5
Low−medium sensitivity
6
7 Low sensitivity
JPLIA0095GB

REAR WIPER AND WASHER SYSTEM
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REAR WIPER AND WASHER SYSTEM
System DiagramINFOID:0000000001366596
System DescriptionINFOID:0000000001366597
OUTLINE
The rear wiper is controlled by each function of BCM.
Control by BCM Combination switch reading function
 Rear wiper control function
REAR WIPER BASIC OPERATION
 BCM detects the combination switch condition by the combination switch reading function.
 BCM controls the rear wiper to start or stop.
REAR WIPER ON OPERATION
 BCM supplies power to the rear wiper motor according to the rear wiper ON operating condition.
Rear wiper ON operating condition
- Ignition switch ON
- Rear wiper switch ON
REAR WIPER INT OPERATION LINKED WITH VEHICLE SPEED
 BCM supplies power to the rear wiper motor according to the INT operating condition.
Rear wiper INT operating condition- Ignition switch ON
- Rear wiper switch INT
 BCM controls the rear wiper to operate once.
 BCM detects the rear wiper motor stopping position.
 BCM supplies power to the rear wiper motor after an intermittent from the stop of the rear wiper motor.
REAR WIPER AUTO STOP OPERATION
 BCM stops supplying power to the rear wiper motor when the rear wiper switch is turned OFF.
ALLIA0271GB
JPLIA0165GB

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< FUNCTION DIAGNOSIS >
REAR WIPER AND WASHER SYSTEM
 BCM reads an auto stop signal from the rear wiper motor to detect a rear wiper motor position.
 When the rear wiper motor is at other than the stopping position, BCM continues to supply power to the rear
wiper motor until it returns to the stopping position.
NOTE:
BCM stops supplying power to the rear wiper motor when the ignition switch is turned OFF.
REAR WIPER OPERATION LINKED WITH WASHER
 BCM supplies power to the rear wiper motor according to the washer linked operating condition of rear
wiper. When the rear washer switch is turned OFF, BCM controls rear wiper to operate approximately three
times.
Washer linked operating condition of rear wiper- Ignition switch ON
- Rear washer switch ON (0.4 second or more)
 Washer pump becomes grounded through the combination switch when the rear washer switch is turned
ON.
REAR WIPER DROP WIPE OPERATION
 BCM controls the rear wiper to operate once according to the rear wiper drop wipe operating condition.
Rear wiper drop wipe operating condition
- Ignition switch ON
- Rear wiper switch OFF
- Rear washer switch OFF
 BCM controls the rear wiper so that it operates once time approximately three seconds later after the washer
interlocking operation of the rear wiper.
JPLIA0166GB

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< FUNCTION DIAGNOSIS >
HEADLAMP WASHER SYSTEM
HEADLAMP WASHER SYSTEM
System DiagramINFOID:0000000001366600
System DescriptionINFOID:0000000001366601
OUTLINE
The headlamp washer is controlled by each function of BCM and IPDM E/R.
Control by BCM Combination switch reading function
 Headlamp washer control function
Control by IPDM E/R Relay control function
HEADLAMP WASHER BASIC OPERATION
 BCM detects the combination switch condition by the combination switch reading function.
 BCM transmits the headlamp washer request signal to IPDM E/R with CAN communication depending on
each operating condition of the headlamp washer.
Operating conditions (The first time)
- Ignition switch ON
- Headlamps ON (PASS excluded)
- Front washer switch ON at first time.
Operating conditions (From the second time)- Ignition switch ON
- Headlamps ON (PASS excluded)
- Front washer switch ON at fifth time after the first time.
ALLIA0274GB
JPLIA0177GB

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< FUNCTION DIAGNOSIS >
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Function (BCM - COMMON ITEM)INFOID:0000000001366604
APPLICATION ITEM
CONSULT-III performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions for each system.
NOTE:
It can perform the diagnosis modes except the following for all sub system selection items.
WIPER
WIPER : CONSULT-III Function (BCM - WIPER)INFOID:0000000001366605
WORK SUPPORT
*:Factory setting
DATA MONITOR
Diagnosis mode Function Description
WORK SUPPORT Changes the setting for each system function.
SELF-DIAG RESULTS Displays the diagnosis results judged by BCM. Refer to BCS-54, "
DTCIndex".
CAN DIAG SUPPORT MNTR Monitors the reception status of CAN communication viewed from BCM.
DATA MONITOR The BCM input/output signals are displayed.
ACTIVE TEST The signals used to activate each device are forcibly supplied from BCM.
ECU IDENTIFICATION The BCM part number is displayed.
CONFIGURATION Enables to read and save the vehicle specification.
 Enables to write the vehicle specification when replacing BCM.
System Sub system selection itemDiagnosis mode
WORK SUPPORT DATA MONITOR ACTIVE TEST
—BCM×
Exterior lamp HEAD LAMP×××
Wiper and washer WIPER×××
Combination switch COMB SW×
Back door switch DOOR LOCK××
Service itemSetting
itemDescription
WIPER SPEED
SETTINGON*With 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)
Monitor Item
[Unit]Description
IGN ON SW Ignition switch ON status judged from ignition power supply.
IGN SW CAN Ignition switch ON status received from IPDM E/R with CAN communication.

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< FUNCTION DIAGNOSIS >
DIAGNOSIS SYSTEM (IPDM E/R)
DIAGNOSIS SYSTEM (IPDM E/R)
Diagnosis DescriptionINFOID:0000000001366606
AUTO ACTIVE TEST
Refer to PCS IPDM E/R AUTO ACTIVE TEST.
CONSULT - III Function (IPDM E/R)INFOID:0000000001366607
APPLICATION ITEM
CONSULT-III performs the following functions via CAN communication with IPDM E/R.
SELF DIAGNOSTIC
Refer to PCS-28, "DTCIndex".
DATA MONITOR
Monitor item
ACTIVE TEST
Te s t i t e m
Diagnosis mode Description
ECU Identification Allows confirmation of IPDM E/R part number.
Self Diagnostic Result Displays the diagnosis results judged by IPDM E/R.
Data Monitor Displays the real-time input/output data from IPDM E/R input/output data.
Active Test IPDM E/R can provide a drive signal to electronic components to check their operations.
CAN Diag Support Monitor The results of transmit/receive diagnosis of CAN communication can be read.
Monitor Item
[Unit]MAIN
SIGNALSDescription
HL WASHER REQ
[Off/On]Displays the status of the headlamp washer request signal received from BCM via CAN
communication.
FR WIP REQ
[Stop/1LOW/Low/Hi]×Displays the status of the front wiper request signal received from BCM via CAN com-
munication.
WIP AUTO STOP
[STOP P/ACT P]×Displays the status of the front wiper auto stop signal judged by IPDM E/R.
WIP PROT
[Off/BLOCK]×Displays the status of the front wiper fail-safe operation judged by IPDM E/R.
IGN RLY
[Off/On]×Displays the status of the ignition relay judged by IPDM E/R.
IGN ON SW
[Off/On]Displays the status of the ignition switch judged by IPDM E/R.
Test item Operation Description
FRONT WIPEROff OFF
Lo Operates the front wiper relay.
Hi Operates the front wiper relay and front wiper high relay.
HEAD LAMP WASHER On Operates the headlamp washer relay for 1 second.
EXTERNAL LAMPSOff OFF
TAIL Operates the tail lamp relay.
Lo Operates the headlamp low relay.
HiOperates the headlamp low relay and ON/OFF the headlamp high relay at 1 sec-
ond intervals.
Fog Operates the front fog lamp relay.