Interview the customer to obtain as much information as possible about the conditions and environment under
which the malfunction occurred.
>> GO TO 2.
2.CHECK SYMPTOM
• Check the symptom based on the information obtained from the customer.
• Check that any other malfunctions are present.
>> GO TO 3.
3.CHECK CONSULT-III SELF-DIAGNOSIS RESULTS
Connect CONSULT-III and perform self-diagnosis. Refer to WCS-12, "
Are self-diagnosis results normal?
YES>> GO TO 4.
NO>> Repair or replace the malfunctioning parts and go to 5.
4.NARROW DOWN MALFUNCTIONING PARTS THROUGH SYMPTOM DIAGNOSIS
Perform symptom diagnosis and repair or replace the identified malfunctioning parts.
CONSULT-III Function (METER/M&A)".
A
B
C
D
E
F
G
H
I
>> GO TO 5.
5.FINAL CHECK
Check that the warning buzzer in the combination meter operates normally.
Does it operate normally?
YES>> INSPECTION END
NO>> GO TO 1.
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WCS-3
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WARNING CHIME SYSTEM
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2007 G35 Sedan
< FUNCTION DIAGNOSIS >
FUNCTION DIAGNOSIS
WARNING CHIME SYSTEM
WARNING CHIME SYSTEM
WARNING CHIME SYSTEM : System DiagramINFOID:0000000000964468
JSNIA0034GB
WARNING CHIME SYSTEM : System DescriptionINFOID:0000000000964469
COMBINATION METER
• The buzzer (1) for warning chime system is installed in the combination meter.
• The buzzer sounds when the combination meter receives buzzer
output signal from each unit through unified meter and A/C amp.
JSNIA0037GB
UNIFIED METER AND A/C AMP.
The unified meter and A/C amp. transmits the buzzer output signal received from BCM with CAN communication line to the combination meter.
BCM
BCM receives signals from various units and transmits a buzzer output signal to the unified meter and A/C
amp. with CAN communication line if it judges that the warning buzzer should be activated.
BCM warning function list
Warning functionsSignal name
Light reminder warning chime
Seat belt warning chimeSeat belt buckle switch signal
• Lighting switch position signal
• Door switch signal
WCS-4
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WARNING CHIME SYSTEM
Revision: October 2006
2007 G35 Sedan
< FUNCTION DIAGNOSIS >
WARNING CHIME SYSTEM : Component Parts LocationINFOID:0000000000964470
A
B
C
D
E
F
G
JSNIA0043ZZ
1. BCM2. Parking brake switch (A/T)3. Combination meter
Combination switch
4.
(Lighting switch)
7. Seat belt buckle switch8. Parking brake switch (M/T)
A. Dash side lower (passenger side)B. Behind cluster lid C (back)
5. Unified meter and A/C amp.6. Front door switch (driver side)
WARNING CHIME SYSTEM : Component DescriptionINFOID:0000000000964471
UnitDescription
• Receives a buzzer output signal from the uni fied met er and A/C a mp. and s ounds th e buzze r.
Combination meter
Unified meter and A/C amp.
BCM
ABS actuator and electric unit
(control unit)
Seat belt buckle switch (driver
side)
Combination switch
(Lighting switch)
• Judges whether the parking brake is released from the vehicle speed signal received from the
unified meter and A/C amp. with CAN com munication line an d the parking brake switch signal
from the parking brake switch, and sounds the buzzer if necessary.
• Receives the seat belt buckle swit ch signal fro m the seat bel t buckle swit ch and transm its it to
BCM with CAN communication line.
• Receives a buzzer output signal from BCM with CAN communication line and transmits it to
the combination meter by means of communication line.
Transmits signals provided by various units to the unified meter and A/C amp. with CAN communication line.
Transmits the vehicle speed signal to BCM with CAN communication line.
Transmits a seat belt buckle switch signal to the unified meter and A/C amp.
Transmits the lighting switch position signal to BCM.
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WCS-5
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WARNING CHIME SYSTEM
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2007 G35 Sedan
< FUNCTION DIAGNOSIS >
UnitDescription
Front door switch
(driver side)
Parking brake switchRefer to MWI-59, "
Transmits the door switch signal to BCM.
Description".
LIGHT REMINDER WARNING CHIME
LIGHT REMINDER WARNING CHIME : System DiagramINFOID:0000000000964472
JSNIA0167GB
LIGHT REMINDER WARNING CHIME : System DescriptionINFOID:0000000000964473
DESCRIPTION
With ignition switch in OFF or ACC position, driver door open, and lighting switch in 1ST or 2ND position, the
light warning chime will sound.
• BCM detects ignition switch in OFF or ACC position, front door switch (dri ver side) ON, and l ighting switch in
1ST or 2ND position. And then transmits buzzer output signal (light reminder warning chime) to unified meter
and A/C amp. with CAN communication line.
• Unified meter and A/C amp. transmits buzzer output signal (light reminder warning chime) to combination
meter with communication line.
• When combination meter receives buzzer output signal (light reminder warning chime), it sounds the buzzer .
WARNING OPERATION CONDITIONS
If all of the following conditions are fulfilled
• Lighting switch is at 1st or 2nd position
• Ignition switch is at OFF or ACC
• Front door switch (driver side) is ON
WARNING CANCEL CONDITIONS
Warning is canceled if any of the following conditions is fulfilled.
• Lighting switch OFF
• Ignition switch ON
• Front door switch (driver side) is OFF
WCS-6
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WARNING CHIME SYSTEM
Revision: October 2006
2007 G35 Sedan
< FUNCTION DIAGNOSIS >
LIGHT REMINDER WARNING CHIME : Component Parts LocationINFOID:0000000000964474
A
B
C
D
E
F
G
JSNIA0043ZZ
1. BCM2. Parking brake switch (A/T)3. Combination meter
Combination switch
4.
(Lighting switch)
7. Seat belt buckle switch8. Parking brake switch (M/T)
A. Dash side lower (passenger side)B. Behind cluster lid C (back)
5. Unified meter and A/C amp.6. Front door switch (driver side)
Combination meterReceives a buzzer output signal from the unified meter and A/C amp. and sounds the buzzer.
Unified meter and A/C amp.
BCM
Combination switch
(Lighting switch)
Front door switch
(driver side)
Receives a buzzer output sign al from BCM via CAN communica tion line and transmit s it to the combination meter by means of communication line .
Judges the light warning cond itions f rom the signals p rovide d by variou s switch es and t ransmi ts a
buzzer output signal to the unified meter and A/C amp. via CAN communication line if necessary.
Transmits the lighting switch position signal to BCM.
Transmits the door switch signal to BCM.
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P
WCS-7
Page 8
< FUNCTION DIAGNOSIS >
Revision: October 2006
2007 G35 Sedan
WARNING CHIME SYSTEM
SEAT BELT WARNING CHIME : System Diagram
INFOID:0000000000964476
JSNIA0168GB
SEAT BELT WARNING CHIME : System DescriptionINFOID:0000000000964477
DESCRIPTION
With ignition switch turned ON and driver seat belt unfastened, seat belt warning chime will sound for approximately 6 seconds.
• BCM receives seat belt buckle switch signal from unified meter and A/C amp. with CAN communication line.
• BCM detects ignition switch turned ON and seat belt buckle switch (driver side) ON. And then transmits
buzzer output signal (seat belt warning chime) to unified meter and A/C amp. with CAN communication line.
• Unified meter and A/C amp. transmits buzzer output signal (seat belt warning chime) to combination meter
with communication line.
• When combination meter receives buzzer output signal (seat belt warning chime), it sounds the buzzer.
WARNING OPERATION CONDITIONS
If all of the following conditions are fulfilled
• Ignition switch OFF→ON
• Seat buckle switch (driver side) is ON (driver seat belt not fastened)
WARNING CANCEL CONDITIONS
Cancels the warning if any of the following conditions is fulfilled.
• Ignition switch OFF
• Seat buckle switch (driver side) is OFF (driver seat belt fastened)
• 90 seconds have passed since the start of the warning
WCS-8
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WARNING CHIME SYSTEM
Revision: October 2006
2007 G35 Sedan
< FUNCTION DIAGNOSIS >
SEAT BELT WARNING CHIME : Component Parts LocationINFOID:0000000000964478
A
B
C
D
E
F
G
JSNIA0043ZZ
1. BCM2. Parking brake switch (A/T)3. Combination meter
Combination switch
4.
(Lighting switch)
7. Seat belt buckle switch8. Parking brake switch (M/T)
A. Dash side lower (passenger side)B. Behind cluster lid C (back)
5. Unified meter and A/C amp.6. Front door switch (driver side)
SEAT BELT WARNING CHIME : Component DescriptionINFOID:0000000000964479
UnitDescription
Combination meterReceives a buzzer output signal from the unified meter and A/C amp. and sounds the buzzer.
• Receives the seat belt buckle switch signal from the seat belt buckle switch and transmits it to
Unified meter and A/C amp.
BCM
Seat belt buckle switch
(driver side)
BCM via CAN communication line.
• Receives a buzzer output signal from BCM via CAN communication line and transmits it to the
combination meter by means of communication line.
Judges the seat belt warning condition from the seat belt buckle switch signal received from the unified meter and A/C amp. and transmits a buzzer output signal to the unified meter and A/C amp via
CAN communication line if necess ary.
Refer to WCS-21, "
Description".
PARKING BRAKE RELEASE WARNING CHIME
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WCS-9
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< FUNCTION DIAGNOSIS >
Revision: October 2006
2007 G35 Sedan
WARNING CHIME SYSTEM
PARKING BRAKE RELEASE WARNING CHIME : System Diagram
INFOID:0000000000964480
JSNIA0036GB
PARKING BRAKE RELEASE WARNING CHIME : System DescriptionINFOID:0000000000964481
DESCRIPTION
• The unified meter and A/C amp. receives the vehicle speed signal from the ABS actuator and electric unit
(control unit) via CAN communication line and transmits it to the combination meter by means of communication line.
• The combination meter judges whether the parking brake is released from the vehicle speed signal received
from the unified meter and A/C amp. and the parking brake switch signal from the parking brake switch, and
sounds the warning buzzer if necessary.
WARNING OPERATION CONDITIONS
If all of the following conditions are fulfilled
• Vehicle speed is 7 km/h (4.3 MPH) or higher
• Parking brake switch ON
WARNING CANCEL CONDITIONS
Warning is canceled if any of the following conditions is fulfilled.
• Vehicle speed is approximately 3 km/h (1.9 MPH) or less
• Parking brake switch OFF
WCS-10
Page 11
WARNING CHIME SYSTEM
Revision: October 2006
2007 G35 Sedan
< FUNCTION DIAGNOSIS >
PARKING BRAKE RELEASE WARNING CHIME : Component Parts Location
INFOID:0000000000964482
A
B
C
D
E
F
G
JSNIA0043ZZ
1. BCM2. Parking brake switch (A/T)3. Combination meter
Combination switch
4.
(Lighting switch)
7. Seat belt buckle switch8. Parking brake switch (M/T)
A. Dash side lower (passenger side)B. Behind cluster lid C (back)
5. Unified meter and A/C amp.6. Front door switch (driver side)
Judges whether the parking brake is released from the vehicle speed signal received from the
Combination meter
Unified meter and A/C amp.
ABS actuator and electric unit
(control unit)
Parking brake switchRefer to MWI-59, "
unified meter and A/C amp. via CAN communication line and the parking brake switch signal from
the parking brake switch, and sounds the buzzer if necessary.
Receives a vehicle speed signal f rom ABS act ua tor a nd el e ctr ic un i t (con t rol uni t) via CAN c ommunication line and transmits it to the combination meter by means of communication line.
Transmits the vehicle speed signal to combination meter via CAN comm unication line.
Description".
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WCS-11
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DIAGNOSIS SYSTEM (UNIFIED METER AND A/C AMP.)
Revision: October 2006
2007 G35 Sedan
< FUNCTION DIAGNOSIS >
DIAGNOSIS SYSTEM (UNIFIED METER AND A/C AMP.)
CONSULT-III Function (METER/M&A)INFOID:0000000000964484
CONSULT-III APPLICATION ITEMS
CONSULT-III can perform the following diagnosis modes with CAN communication with the unified meter and
A/C amp.
SystemDiagnosis modeDescription
METER/M&A
SELF DIAG RESULT
Refer to MWI-97, "DTC Index".
DATA MONITOR
Display Item List
Display item [Unit]
SPEED METER
[km/h]
SPEED OUTPUT
[km/h]
ODO OUTPUT
[km/h or mph]
T A CHO METER
[rpm]
FUEL METER
[lit.]
W TEMP METER
[°C]
ABS W/L
[On/Off]
VDC/TCS IND
[On/Off]
SLIP IND
[On/Off]
BRAKE W/L
[On/Off]
DOOR W/L
[On/Off]
TRUNK/GLAS-H
[On/Off]
Self Diagnostic ResultUnified meter and A/C amp. checks the conditions and displays memorized error.
Data MonitorDisplays unified meter and A/C amp. input/output da ta in real time.
X: Applicable
MAIN
SIGNALS
Value of vehicle speed signal received from ABS actuator and electric unit (control
X
X
X
XFuel level indicated on combination meter.
X
unit) with CAN communication line.
NOTE:
655.35 is displayed when the malfunction signal is received.
Vehicle speed signal value transmitted to other units with CAN communication
line.
NOTE:
655.35 is displayed when the malfunction signal is received.
Odometer signal value transmitted to other units with CAN communication line.
Value of the engine speed signal received from ECM with CAN communication
line.
NOTE:
8191.875 is displayed when the malfunction signal is received.
Value of engine coolant temperature signal received from ECM with CAN communication line.
NOTE:
215 is displayed when the malfunction signal is input.
Status of ABS warning lamp judged from ABS warning lamp signal received from
ABS actuator and electric unit (control unit) with CAN communication line.
Status of VDC indicator lamp judged from VDC OFF indicator lamp sign al re-
ceived from ABS actuator and electric unit (control unit) with CAN communication
line.
Status of slip indicator lamp judged from slip indicator lamp signal received from
ABS actuator and electric unit (control unit) with CAN communication line.
Status of brake warning lamp judged from brake warning lamp signal received
from ABS actuator and electric unit (control unit) with CAN communication line.
NOTE:
Displays “Off” if the brake warning lamp is illuminated when the valve check starts,
the parking brake switch is turned ON or the b rake flui d level switch is turned ON.
Status of door warning judged from door switch signal received from BCM with
CAN communication line.
Status of trunk warning judged from trunk switch signal received from BCM with
CAN communication line.
Description
WCS-12
Page 13
DIAGNOSIS SYSTEM (UNIFIED METER AND A/C AMP.)
Revision: October 2006
2007 G35 Sedan
< FUNCTION DIAGNOSIS >
Display item [Unit]
HI-BEAM IND
[On/Off]
TURN IND
[On/Off]
FR FOG IND
[On/Off]
RR FOG IND
[Off]
LIGHT IND
[On/Off]
OIL W/L
[On/Off]
MIL
[On/Off]
CRUISE IND
[On/Off]
SET IND
[On/Off]
CRUISE W/L
[On/Off]
BA W/L
[Off]
ATC/T-AMT W/L
[On/Off]
4WD W/L
[On/Off]
4WD LOCK IND
[Off]
FUEL W/L
[On/Off]
WASHER W/L
[On/Off]
AIR PRES W/L
[On/Off]
KEY G/Y W/L
[On/Off]
AFS OFF IND
[On/Off]
4WAS/RAS W/L
[On/Off]
LCD
[B&P N, B&P I, ID NG, ROTAT, SFT
P, INSRT, BATT, NO KY,OUTKY, LK
WN, C&P N,C&P I]
ACC TARGET
[On/Off]
ACC DISTANCE
[Off, SHOR, MID, LONG]
ACC OWN VHL
[On/Off]
ACC SET SPEED
[On/Off]
MAIN
SIGNALS
Description
Statu s of high beam indicator lamp judged from high beam request signal receiv ed
from BCM with CAN communication line.
Status of turn indicator lamp judged from turn indicator signal received from BCM
with CAN communication line.
Status of front fog light indicator lamp judged from front fog light request signal received from BCM with CAN communication line.
This item is displayed, but cannot be monitored.
Status of light indicator lamp judged from position light request signal received
from BCM with CAN communication line.
Status of oil pressure warning lamp judged from oil pressure switch signal re-
ceived from IPDM E/R with CAN communication line.
Status of malfunction indicator lamp judged from malfunctioning indicator lamp
signal received from ECM with CAN communication line.
Status of CRUISE indicator judged from ASCD status signal received from ECM
with CAN communication line.
Statu s of set indicator judg ed from ASCD SET indicator sign al received from ECM
with CAN communication line.
Status of CRUISE warning lamp judged from ASCD status signal received from
ECM with CAN communication line.
This item is displayed, but cannot be monitored.
Status of A/T check warning lamp judged from A/T check indicator signal received
from TCM with CAN communication line.
Status of A WD warning lamp judged from AWD warning lamp signal received from
AWD control unit with CAN communication line.
This item is displayed, but cannot be monitored.
Low-fuel warning stat us judged by the identified fuel level.
Status of washer warning lamp judged from washer level switch input to combina-
tion meter.
Status of tire pressure warning lamp judged from tire pressure signal received
from BCM with CAN communication line.
Status of key warning lamp (G/Y) judged from key warning signal received from
BCM with CAN communication line.
Statu s of AFS OFF indicat or lamp judged from AFS OFF indicato r lamp signal re-
ceived from AFS control unit with CAN communication line.
Status of 4WAS warning lamp judged from 4WAS warning lamp signal received
from 4WAS main control unit with CAN communication line.
Displays status of In telligent Key system warning judged from meter display si gnal
received from BCM with CAN communication line.
Status of vehicle ahead detection indicator judged from meter display signal received from ICC sensor integrated unit with CAN communication line.
Status of set distance indicator judged from meter displ ay signal received from
ICC sensor integrated unit with CAN communication line.
Status of own vehicle indicator judged from meter display signal received from
ICC sensor integrated unit with CAN communication line.
Status of set vehicle speed indicator judged from meter display signal received
from ICC sensor integrated unit with CAN communication line.
A
B
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D
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F
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WCS-13
Page 14
DIAGNOSIS SYSTEM (UNIFIED METER AND A/C AMP.)
Revision: October 2006
2007 G35 Sedan
< FUNCTION DIAGNOSIS >
Display item [Unit]
ACC UNIT
[On/Off]
SHIFT IND
[P, R, N, D, M1, M2, M3, M4, M5]
AT S MODE SW
[On/Off]
AT P MODE SW
[On/Off]
M RANGE SW
[On/Off]
NM RANGE SW
[On/Off]
AT SFT UP SW
[On/Off]
AT SFT DWN SW
[On/Off]
ST SFT UP SW
[On/Off]
ST SFT DWN SW
[On/Off]
COMP FB SIG
[On/Off]
4WD LOCK SW
[Off]
PKB SW
[On/Off]
BUCKLE SW
[On/Off]
BRAKE OIL SW
[On/Off]
DISTANCE
[km]
OUTSIDE TEMP
[°C or °F]
FUEL LOW SIG
[On/Off]
BUZZER
[On/Off]
NOTE:
Some items are not available according to vehicle specification.
MAIN
SIGNALS
Status of display unit judged from meter display signal received from ICC sensor
integrated unit with CAN communication line.
Status of A/T position indi cator judged from shif t position sign al and manual mode
indicator signal received from TCM with CAN communication line.
Status of snow mode switch.
This item is displayed, but cannot be monitored.
Stat us of manual mode switch.
Stat us of not manual mode switch.
Status of A/T shift up switch.
Stat us of A/T shift down switch.
Status of paddle shifter up switch.
Status of paddle shifter down switch.
A/C compressor activation condition that ECM judges according to the water tem-
perature and the acceleration degree.
This item is displayed, but cannot be monitored.
Stat us of parking brake switch.
Stat us of seat belt buckle switch.
Status of brake fluid level switch.
Value of possible driving distance calculated by unified meter and A/C amp.
Ambient temperature value converted from ambient sensor signal received from
ambient sensor.
NOTE:
This may not match with the temperature value indicated on the information display. (Because the information display value is a corrected value from the ambient
sensor input value.)
Status of fuel level low warning signal to output to AV control unit with CAN communication line.
Buzzer status (in the combination meter) is judged with the buzzer output signal
received from each unit with CAN commun ication line and the warning o utput condition of the combination meter.
Description
WCS-14
Page 15
< FUNCTION DIAGNOSIS >
Revision: October 2006
2007 G35 Sedan
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Function (BCM - COMMON ITEM)INFOID:0000000000964485
APPLICATION ITEM
CONSULT-III performs the following functions via CAN communication with BCM.
Diagnosis modeFunction Description
WORK SUPPORTChanges the setting for each system function.
SELF-DIAG RESULTSDisplays the diagnosis results judged by BCM. Refer to BCS-74, "
CAN DIAG SUPPORT MNTRMonitors the reception status of CAN communication viewed from BCM.
DATA MONITORThe BCM input/output signals are displayed.
ACTIVE TESTThe signals used to activate each device are forcibly supplied from BCM.
ECU IDENTIFICATIONThe BCM part number is displayed.
CONFIGURATIONThis function is not used even though it is displayed.
DTC Index".
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.
SystemSub system selection item
Door lockDOOR LOCK×××
Rear window defoggerREAR DEFOGGER××
Warning chimeBUZZER××
Interior room lamp timerINT LAMP×××
Exterior lampHEAD LAMP×××
Wiper and washerWIPER×××
Turn signal and hazard warning lamps FLASHER×××
Air conditioner*AIR CONDITONER×
Intelligent Key systemINTELLIGENT KEY×××
Combination switchCOMB SW×
BCMBCM×
IVIS - NATSIMMU××
Interior room lamp battery saverBATTERY SAVER×××
Trunk openTRUNK×
Vehicle security systemTHEFT ALM×××
RAP systemRETAINED PWR×
Signal buffer systemSIGNAL BUFFER××
TPMS
*: This item is displayed, but is not used.
TPMS (AIR PRESSURE MONITOR)
WORK SUPPORT DATA MONITORACTIVE TEST
×××
Diagnosis mode
BUZZER
A
B
C
D
E
F
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BUZZER : CONSULT-III Function (BCM - BUZZER)INFOID:0000000000964486
CONSULT-III APPLICATION ITEMS
WCS-15
Page 16
DIAGNOSIS SYSTEM (BCM)
Revision: October 2006
2007 G35 Sedan
< FUNCTION DIAGNOSIS >
Test itemDiagnosis modeDescription
BUZZER
DATA MONITOR
Data MonitorDisplays BCM input data in real time.
Active TestOperation of electrical load s can be checked by sending driving signal to them.
Display item
[Unit]
VEH SPEED 1
[Km/h]
PUSH SW
[On/Off]
UNLK SEN-DR
[On/Off]
KEY SW-SLOT
[On/Off]
TAIL LAMP SW
[On/Off]
FR FOG SW
[On/Off]
DOOR SW-DR
[On/Off]
Value of vehicle speed signal received from ABS actuator and electric unit (control unit) with CAN
communication line.
Status of push button ignition switch judged by BCM.
Status of unlock sensor judged by BCM.
Status of key slot judged by BCM.
Stat us of each switch judged by BCM using the combination switch readout function.
Status of front fog lamp switch judged by BCM.
Status of driver side door switch judged by BCM.
Description
ACTIVE TEST
Display item
[Unit]
IGN KEY WARN ALMThe key warning chime operation can be checked by operating the relevant function (On/Off).
SEAT BELT WARN TESTThe seat belt warning chime operation can be checked by operating the relevant function (On/Off).
ID REGIST WARNINGThe ID regist warning chime operation can be checked by operating the relevant function (On/Off).
LIGHT WARN ALMThe light warning chime operation can be checked by operating the relevant function (On/Off).
RUN FLAT/T WARN BUZZER The run-flat tire warning chime operation can be checked by operating the relevant function (On/Off).
Description
WCS-16
Page 17
POWER SUPPLY AND GROUND CIRCUIT
Revision: October 2006
2007 G35 Sedan
< COMPONENT DIAGNOSIS >
COMPONENT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
COMBINATION METER
COMBINATION METER : Diagnosis ProcedureINFOID:0000000000964487
1.CHECK FUSE
Check for blown fuses.
Power sourceFuse No.
Battery11
Ignition switch ON or START 4
Is the inspection result normal?
YES>> GO TO 2.
NO>> Be sure to eliminate cause of malfunction before installing new fuse.
2.CHECK POWER SUPPLY CIRCUIT
Check voltage between combination meter harness connector M53 terminals 1, 21 and ground.
Check power supply of combination meter. Refer to WCS-17, "
dure".
Is the inspection result normal?
YES>> GO TO 2.
NO>> Repair power supply circuit of combination meter.
COMBINATION METER : Diagnosis Proce-
2.CHECK BATTERY POWER SUPPLY OF UNIFIED METER AND A/C AMP.
Check battery power supply of unified meter and A/C amp. Refer to WCS-17, "
AMP. : Diagnosis Procedure".
Is the inspection result normal?
YES>> INSPECTION END
NO>> Repair power supply circuit of unified meter and A/C amp.
UNIFIED METER AND A/C
WCS-20
Page 21
SEAT BELT BUCKLE SWITCH SIGNAL CIRCUIT
Revision: October 2006
2007 G35 Sedan
< COMPONENT DIAGNOSIS >
SEAT BELT BUCKLE SWITCH SIGNAL CIRCUIT
DescriptionINFOID:0000000000964494
Transmits a seat belt buckle switch signal to the unified meter and A/C amp.
Component Function CheckINFOID:0000000000964495
1.CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
Select the “Data Monitor” for the “METER/M&A” and check the “BUCKLE SW” monitor value.
BUCKLE SW
When seat belt is fastened: OFF
When seat belt is unfastened: ON
>> INSPECTION END
Diagnosis ProcedureINFOID:0000000000964496
1.CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
1.Turn ignition switch ON.
2.Check voltage between unified meter and A/C amp. harness connector M66 terminal 9 and ground.
9 - Ground
When driver seat belt is fas-
tened
When driver seat belt is unfas-
tened
Is the inspection result normal?
YES>> Replace unified meter and A/C amp.
NO>> GO TO 2.
: Approx. 12 V
: Approx. 0 V
2.CHECK SEAT BELT BUCKLE SWITCH CIRCUIT
1.Turn ignition switch OFF.
2.Disconnect unified meter and A/C amp. connector and seat belt buckle switch (driver side) connector.
3.Check continuity between unified meter and A/C amp. harness connector M66 terminal 9 and seat belt
buckle switch (driver side) harness connector B13 terminal 1.
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9 - 1: Continuity should exist.
4.Check harness continuity between unified meter and A/C amp. harness connector M66 terminal 9 and
ground.
9 - Ground: Continuity should not exist.
Is the inspection result normal?
YES>> GO TO 3.
NO>> Repair harness or connector.
3.CHECK SEAT BELT BUCKLE SWITCH GROUND CIRCUIT
Check harness continuity between seat belt buckle switch (driver side) harness connector B13 terminal 2 and
ground.
2 - Ground: Continuity should exist.
Is the inspection result normal?
YES>> INSPECTION END
NO>> Repair harness or connector.
Component InspectionINFOID:0000000000964497
WCS-21
M
WCS
N
O
P
Page 22
SEAT BELT BUCKLE SWITCH SIGNAL CIRCUIT
Revision: October 2006
2007 G35 Sedan
< COMPONENT DIAGNOSIS >
1.CHECK SEAT BELT BUCKLE SWITCH UNIT
1.Turn ignition switch OFF.
2.Disconnect the seat belt buckle switch connector.
3.Check continuity between terminals 1 and 2.
1– 2
When seat belt is fastened: Continuity should not exist.
When seat belt is unfastened: Continuity should exist.
Is the inspection result normal?
YES>> INSPECTION END
NO>> Replace the seat belt buckle. Refer to SB-7, "
Charge warning lamp ON0 V
Charge warning lamp OFF12 V
Air bag warning lamp ON4 V
Air bag warning lamp OFF0 V
Security warning lamp ON0 V
Security warning lamp OFF12 V
JSNIA0027GB
JSNIA0027GB
J
K
L
M
WCS
N
O
P
WCS-27
Page 28
< ECU DIAGNOSIS >
Revision: October 2006
2007 G35 Sedan
COMBINATION METER
Term inal No.
(Wire color)
+–Signal name
15
Ground Ground—
(B)
16
Ground Meter control switch ground—
(B)
21
Ground Ignition signalInput
(R)
22
Ground Ground—
(B)
24
(BR)
Ground
Communication signal
(LCD→ AMP.)
Description
Input/
Output
Output
Ignition
switch
ON
Ignition
switch
ON
Ignition
switch
ON
Ignition
switch
ON
Ignition
switch
ON
Condition
Value
(Approx.)
—0 V
—0 V
—12 V
—0 V
—
JSNIA0028GB
25
Ground
(Y)
26
Ground
(R)
27
Ground Parking brake switch signalInput
(V)
Communication signal
(AMP.→ LCD)
Vehicle speed signal
(8-pulse)
Input
Input
Ignition
switch
ON
Ignition
switch
ON
Ignition
switch
ON
—
JSNIA0027GB
NOTE:
The maximum voltage vari es de pending on the specification
(destination unit).
Speedometer operated
[When vehicle speed is approx. 40 km/h (25 MPH)]
JSNIA0012GB
Parking brake ON0 V
Parking brake OFF
JSNIA0007GB
WCS-28
Page 29
< ECU DIAGNOSIS >
Revision: October 2006
2007 G35 Sedan
COMBINATION METER
Terminal No.
(Wire color)
+–Signal name
28
(W)
29
(SB)
31
(L)
34
(R)
Ground
Ground
Ground Washer level switch signalInput
Ground Illumination control signalOutput
Brake fluid level switch signal
Seat belt buckle switch signal (driver side)
Description
Input/
Output
Input
Input
Ignition
switch
ON
Ignition
switch
ON
Ignition
switch
ON
Ignition
switch
ON
Condition
Brake fluid level is normal.
The brake fluid level is lower than the low level
When driver seat belt is fastened
When driver seat belt is unfastened
Washer level switch ON0 V
Washer level switch OFF5 V
NOTE:
When brightness level is midway
Lighting switch ON, then
operate the illumination
control switch.
Value
(Approx.)
0 V
12 V
0 V
JSNIA0008GB
A
B
C
D
E
F
G
H
I
36
(LG)
37
(SB)
38
(L)
39
(P)
40
(O)
16
Select switch signalInput
(B)
16
Enter switch signalInput
(B)
16
Trip A/B reset switch sign alInput
(B)
16
Illumination control switch
(B)
signal (–)
16
Illumination control switch
(B)
signal (+)
Input
Input
Ignition
switch
ON
Ignition
switch
ON
Ignition
switch
ON
Ignition
switch
ON
Ignition
switch
ON
When is pressed
Other than the above5 V
When is pressed
Other than the above5 V
When trip A/B reset switch
is pressed
Other than the above5 V
When switch is
pressed
Other than the above5 V
When switch is
pressed
Other than the above5 V
0 V
0 V
0 V
0 V
0 V
JSNIA0010GB
J
K
L
M
WCS
N
O
P
WCS-29
Page 30
< ECU DIAGNOSIS >
B
Revision: October 2006
2007 G35 Sedan
COMBINATION METER
Wiring Diagram — METER —
INFOID:0000000000964500
JCNWA0001G
WCS-30
Page 31
< ECU DIAGNOSIS >
B
Revision: October 2006
2007 G35 Sedan
COMBINATION METER
A
B
C
D
E
F
G
H
I
J
K
L
M
WCS
N
O
JCNWA0002G
P
WCS-31
Page 32
< ECU DIAGNOSIS >
B
Revision: October 2006
2007 G35 Sedan
COMBINATION METER
JCNWA0003G
WCS-32
Page 33
< ECU DIAGNOSIS >
B
Revision: October 2006
2007 G35 Sedan
COMBINATION METER
A
B
C
D
E
F
G
H
I
J
K
L
M
WCS
N
O
JCNWA0004G
P
WCS-33
Page 34
< ECU DIAGNOSIS >
B
Revision: October 2006
2007 G35 Sedan
COMBINATION METER
JCNWA0005G
WCS-34
Page 35
< ECU DIAGNOSIS >
B
Revision: October 2006
2007 G35 Sedan
COMBINATION METER
A
B
C
D
E
F
G
H
I
J
K
L
M
WCS
N
O
JCNWA0006G
P
WCS-35
Page 36
< ECU DIAGNOSIS >
B
Revision: October 2006
2007 G35 Sedan
COMBINATION METER
JCNWA0007G
WCS-36
Page 37
< ECU DIAGNOSIS >
B
Revision: October 2006
2007 G35 Sedan
COMBINATION METER
A
B
C
D
E
F
G
H
I
J
K
L
M
WCS
N
O
JCNWA0008G
P
WCS-37
Page 38
< ECU DIAGNOSIS >
B
Revision: October 2006
2007 G35 Sedan
COMBINATION METER
JCNWA0009G
WCS-38
Page 39
< ECU DIAGNOSIS >
B
Revision: October 2006
2007 G35 Sedan
COMBINATION METER
A
B
C
D
E
F
G
H
I
J
K
L
M
WCS
N
O
Fail SafeINFOID:0000000000964501
FAIL SAFE
Combination meter performs fail-safe operation when unified meter and A/C amp. communication is malfunction.
Solution for communication error between the unified meter and A/C amp. and combination meter.
JCNWA0010G
P
WCS-39
Page 40
COMBINATION METER
Revision: October 2006
2007 G35 Sedan
< ECU DIAGNOSIS >
FunctionSpecifications
Speedometer
Tachometer
Fuel gauge
Water temperature gauge
Illumination controlWhen suspending communication, change to nighttime mode.
Information displayThe display turns off by suspending communication.
BuzzerThe buzzer turns off by suspending communication.
ABS warning lamp
VDC OFF indicator lamp
SLIP indicator lamp
Brake warning lamp
CRUISE warning lamp
BA warning lamp
High beam indicator
Turn signal indicator lamp
Engine start information display (A/T model)B&P I
Engine start information display (M/T model)C&P I
Engine start information display (A/T model)B&P N
Engine start information display (M/T model)C&P N
Key ID warning displayID NG
Steering lock information displayROTAT
P position warning displaySFT P
Intelligent Key insert information displayINSRT
Intelligent Key low battery warning displayBA TT
Take away warning displayNO KY
Key warning displayOUTKY
ICC sensor integrated unit warning displayLK WN
Vehicl e ahead detection indicator displayedOn
Vehicl e ahead detection indicator not displayed
When following distance set to "LONG"LONG
When following distance set to "MIDDLE"MID
When following distance set to "SHORT"SHORT
Set distance indicator not displayedOff
Own vehicle indicator displayedO n
Own vehicle indicator not displayedOff
Set vehicle speed indicator not displayedOff
Set vehicle speed indicator displayedOn
Set vehicle speed indicator unit display ONOn
Set vehicle speed indicator unit display OFFOff
Shift position indicator P displayP
Shift position indicator R displayR
Shift position indicator N displayN
Shift position indicator D displayD
Shift position indicator M1 displayM1
Shift position indicator M2 displayM2
Shift position indicator M3 displayM3
Shift position indicator M4 displayM4
Shift position indicator M5 displayM5
Snow mode switch ONOn
Snow mode switch OFFOff
NOTE:
This item is displayed, but cannot be monitored.
LCD
ACC TARGET
ACC DISTANCE
ACC OWN VHL
ACC SET SPEED
ACC UNIT
SHIFT IND
AT S MODE SW
AT P MODE SW
Ignition switch
ON
Ignition switch
ACC
Ignition switch
LOCK
Ignition switch
LOCK
Ignition switch
LOCK
Ignition switch
LOCK
Ignition switch
LOCK
Ignition switch
ON
Ignition switch
LOCK
Ignition switch
ON
Ignition switch
ON
Ignition switch
ON
Ignition switch
ON
Ignition switch
ON
Ignition switch
ON
Ignition switch
ON
Ignition switch
ON
Ignition switch
ON
Off
Off
A
B
C
D
E
F
G
H
I
J
K
L
M
WCS
N
O
P
WCS-43
Page 44
UNIFIED METER AND A/C AMP.
Revision: October 2006
2007 G35 Sedan
< ECU DIAGNOSIS >
Monitor ItemConditionValue/Status
M RANGE SW
NM RANGE SW
AT SFT UP SW
A T SFT DWN SW
ST SFT UP SW
ST SFT DWN SW
COMP FB SIG
4WD LOCK SW
PKB SW
BUCKLE SW
BRAKE OIL SW
DISTANCE
[km]
OUTSIDE TEMP
[°C] or [°F]
FUEL LOW SIG
BUZZER
NOTE:
Some items are not available according to vehicle specification.
Ignition switch
ON
Ignition switch
ON
Ignition switch
ON
Ignition switch
ON
Ignition switch
ON
Ignition switch
ON
Ignition switch
ON
Ignition switch
ON
Ignition switch
ON
Ignition switch
ON
Ignition switch
ON
Ignition switch
ON
Ignition switch
ON
Ignition switch
ON
Ignition switch
ON
Selector lever manual mode positionOn
Other than the aboveOff
Selector lever manual mode positionOff
Other than the aboveOn
Selector lever + positionOn
Other than the aboveOff
Selector lever – positionOn
Other than the aboveOff
Paddle shifter switch up operationOn
Other than the aboveOff
Paddle shifter switch down operationOn
Other than the aboveOff
A/C compressor activation condition On
A/C compressor deactivation condition Off
NOTE:
This item is displayed, but cannot be monitored.
Parking brake switch ON On
Parking brake switch OFFOff
Seat belt not fastenedOn
Seat belt fastenedOff
Brake fluid level switch ONOn
Brake fluid level switch OFFOff
Low-fuel warning displayed
Buzzer ONOn
Buzzer OFFOff
—
—
Off
Possible driving distan ce calculated by
unified meter and A/C amp.
Equivalent to ambient tempera ture
NOTE:
This may not match the indicated val-
ue on the information display.
TERMINAL LAYOUT
PHYSICAL VALUES
JSNIA0097ZZ
WCS-44
Page 45
< ECU DIAGNOSIS >
Revision: October 2006
2007 G35 Sedan
UNIFIED METER AND A/C AMP.
Terminal No.
(Wire color)
+–Signal name
4
Ground Stop lamp switch signalInput
(P)
5
(L)
6
(O)
7
(GR)
8
(L)
Ground
Ground Paddle shifter up signalInput
Ground
Ground
Manual mode shift up signal
Communication signal
(AMP. → METER)
Vehicle speed signal output
(2-pulse)
Description
Input/
Output
Input
Output
Output
Ignition
switch
OFF
Ignition
switch
ON
Ignition
switch
ON
Ignition
switch
ON
Ignition
switch
ON
Condition
Brake pedal is depressed12 V
Other than the above0 V
Selector lever UP operation0 V
Other than the above12 V
• Selector lever DS position
• Paddle shift up operation
Other than the above12 V
—
NOTE:
The maximum voltage varies depending on the specification
(destination unit).
Speedome ter operated
[When vehicle speed is approx. 40 km/h (25 MPH)]
Value
(Approx.)
0 V
A
B
C
D
E
F
G
SKIA3362E
H
I
9
(SB)
10
(W)
11
(G)
14
(BR)
23
(Y)
25
(V)
Ground
Ground Manual mode signalInput
Ground Not manual mode signalInput
Ground
Ground A/T snow switch signalInput
Ground
Seat belt buckle switch signal (driver side)
Communication signal
(LCD → AMP.)
Manual mode shift down
signal
Input
Input
Input
Ignition
switch
ON
Ignition
switch
ON
Ignition
switch
ON
Ignition
switch
ON
Ignition
switch
ON
Ignition
switch
ON
When seat belt is fastened12 V
When seat belt is not fas-
tened
Selector lever DS position0 V
Other than the above12 V
Selector lever DS position12 V
Other than the above0 V
—
Snow mode switch ON12 V
Snow mode switch OFF0 V
Selector lever down opera-
tion
Other than the above12 V
0 V
0 V
JSNIA0015GB
JSNIA0028GB
J
K
L
M
WCS
N
O
P
WCS-45
Page 46
< ECU DIAGNOSIS >
Revision: October 2006
2007 G35 Sedan
UNIFIED METER AND A/C AMP.
Term inal No.
(Wire color)
Description
+–Signal name
26
(G)
(LG)
(R)
Ground Paddle shift down signalInput
27
28
Ground
Ground
Communication signal
(METER → AMP.)
Vehicl e speed signal output
(8-pulse)
Input/
Output
Input
Output
Ignition
switch
ON
Ignition
switch
ON
Ignition
switch
ON
Condition
Value
(Approx.)
• Selector lever DS position
• Paddle shift down opera-
0 V
tion
Other than the above12 V
—
NOTE:
The maximum voltage vari es de pending on the specification
(destination unit).
Speedometer operated
[When vehicle speed is approx. 40 km/h (25 MPH)]
SKIA3361E
30
(V)
34
(Y)
41
(V)
42
(Y)
Ground Parking brake switch signalInput
Ground
Communication signal
(AMP. → LCD)
Output
Ground ACC power supplyInput
Ground Fuel level sensor signalInput
Ignition
switch
ON
Ignition
switch
ON
Ignition
switch
ACC
Ignition
switch
ON
JSNIA0012GB
Parking brake ON0 V
Parking brake OFF
JSNIA0007GB
—
JSNIA0027GB
—Battery voltage
—
JSNIA0013GB
WCS-46
Page 47
< ECU DIAGNOSIS >
Revision: October 2006
2007 G35 Sedan
UNIFIED METER AND A/C AMP.
Terminal No.
(Wire color)
+–Signal name
45
Ground Ambient sensor signalInput——
(P)
53
(G)
Ground Ignition signalInput
54
Ground Battery power supplyInput
(Y)
55
Ground Ground—
(B)
56
Ground CAN-H————
(L)
Description
Input/
Output
Ignition
switch
ON
Ignition
switch
OFF
Ignition
switch
ON
Condition
Value
(Approx.)
A
B
C
JSNIA0014GB
—Battery voltage
D
E
—Battery voltage
F
—0 V
G
H
57
(W)
58
(B)
61
(BR)
71
(B)
72
(P)
Brake fluid level is normal.
The brake fluid level is lower than the low level
—0 V
—0 V
—0 V
0 V
—
—
Ignition
switch
ON
Ignition
switch
ON
Ignition
switch
ON
Ignition
switch
ON
Ground
Ground
Ground
Ground Ground—
Ground CAN-L————
Brake fluid level switch signal
Fuel level sensor signal
ground
Ambient sensor signal
ground
Input
JSNIA0008GB
I
J
K
L
M
WCS
N
O
P
WCS-47
Page 48
< ECU DIAGNOSIS >
B
Revision: October 2006
2007 G35 Sedan
UNIFIED METER AND A/C AMP.
Wiring Diagram — METER —
INFOID:0000000000964504
JCNWA0001G
WCS-48
Page 49
< ECU DIAGNOSIS >
B
Revision: October 2006
2007 G35 Sedan
UNIFIED METER AND A/C AMP.
A
B
C
D
E
F
G
H
I
J
K
L
M
WCS
N
O
JCNWA0002G
P
WCS-49
Page 50
< ECU DIAGNOSIS >
B
Revision: October 2006
2007 G35 Sedan
UNIFIED METER AND A/C AMP.
JCNWA0003G
WCS-50
Page 51
< ECU DIAGNOSIS >
B
Revision: October 2006
2007 G35 Sedan
UNIFIED METER AND A/C AMP.
A
B
C
D
E
F
G
H
I
J
K
L
M
WCS
N
O
JCNWA0004G
P
WCS-51
Page 52
< ECU DIAGNOSIS >
B
Revision: October 2006
2007 G35 Sedan
UNIFIED METER AND A/C AMP.
JCNWA0005G
WCS-52
Page 53
< ECU DIAGNOSIS >
B
Revision: October 2006
2007 G35 Sedan
UNIFIED METER AND A/C AMP.
A
B
C
D
E
F
G
H
I
J
K
L
M
WCS
N
O
JCNWA0006G
P
WCS-53
Page 54
< ECU DIAGNOSIS >
B
Revision: October 2006
2007 G35 Sedan
UNIFIED METER AND A/C AMP.
JCNWA0007G
WCS-54
Page 55
< ECU DIAGNOSIS >
B
Revision: October 2006
2007 G35 Sedan
UNIFIED METER AND A/C AMP.
A
B
C
D
E
F
G
H
I
J
K
L
M
WCS
N
O
JCNWA0008G
P
WCS-55
Page 56
< ECU DIAGNOSIS >
B
Revision: October 2006
2007 G35 Sedan
UNIFIED METER AND A/C AMP.
JCNWA0009G
WCS-56
Page 57
< ECU DIAGNOSIS >
B
Revision: October 2006
2007 G35 Sedan
UNIFIED METER AND A/C AMP.
A
B
C
D
E
F
G
H
I
J
K
L
M
WCS
N
O
Fail SafeINFOID:0000000000964505
FAIL SAFE
The unified meter and A/C amp. activates the fail-safe control if CAN communication with each unit is malfunctioning.
JCNWA0010G
P
WCS-57
Page 58
UNIFIED METER AND A/C AMP.
Revision: October 2006
2007 G35 Sedan
< ECU DIAGNOSIS >
FunctionSpecifications
Speedometer
Tachometer
Fuel gauge
Water temperature gauge
Illumination controlWhen suspending communication, change to nighttime mode.
Information displayThe display turns off by suspending communication.
BuzzerThe buzzer turns off by suspending communication.
4WAS warning lamp
AFS OFF indicator lampThe lamp blinking caused by communication malfunction
High beam indicator
Turn signal indicator lamp
Front fog indicator lamp
Oil pressure warning lamp
Malfunction indicator lamp
A/T CHECK warning lamp
Key warning lamp
Master warning lamp
Reset to zero by suspending communication.
The lamp turns on by suspending communication.
The lamp turns off by suspending communication.
DTC Index
Display contents of CON-
SULT-III
CAN COMM CIRCUIT
[U1000]
CONTROL UNIT (CAN)
[U1010]
COMM ERROR 1
[B2201]
COMM ERROR 2
[B2202]
VEHICLE SPEED
[B2205]
ENGINE SPEED
[B2267]
WATER TEMP
[B2268]
INFOID:0000000000964506
TimeDiagnostic item is detected when ...Refer to
CRNT, 1 - 39
CRNT, 1 - 39
CRNT, 1 - 39
CRNT, 1 - 39
CRNT, 1 - 39
CRNT, 1 - 39
CRNT, 1 - 39
When unified meter and A/C amp. is not transmitting or receiving CAN
communication signal for 2 seconds or more.
When detecting error during the initial diagnosis of CAN controller of
unified meter and A/C amp.
If a communication error is present i n the co mmun icati on line betwee n
unified meter and A/C amp. and combination meter for 2 seconds or
more.
If a communication error is present i n the co mmun icati on line betwee n
unified meter and A/C amp. and combination meter for 2 seconds or
more.
The abnormal vehicle speed signal is input from ABS actuator and electric unit (control unit) for 2 seconds or more.
If ECM continuously transmit s abnormal engine speed s ignals for 2 seconds or more.
If ECM continuously transmits abnormal engine coolant temperature
signals for 60 seconds or more.
MWI-40
MWI-41
MWI-42
MWI-44
MWI-46
MWI-47
MWI-48
WCS-58
Page 59
< ECU DIAGNOSIS >
Revision: October 2006
2007 G35 Sedan
BCM (BODY CONTROL MODULE)
BCM (BODY CONTROL MODULE)
Reference ValueINFOID:0000000000964507
VALUES ON THE DIAGNOSIS TOOL
Monitor ItemConditionValue/Status
FR WIPER HI
FR WIPER LOW
FR WASHER SW
FR WIPER INT
FR WIPER STOP
INT VOLUMEWiper intermittent dial is in a dial position 1 - 7Wiper intermittent dial position
TURN SIGNAL R
TURN SIGNAL L
TAIL LAMP SW
HI BEAM SW
HEAD LAMP SW 1
HEAD LAMP SW 2
PASSING SW
AUTO LIGHT SW
FR FOG SW
RR FOG SW
DOOR SW-DR
DOOR SW-AS
DOOR SW-RR
DOOR SW-RL
Other than front wiper switch HIOFF
Front wiper switch HION
Other than front wiper switch LOOFF
Front wiper switch LOON
Front washer switch OFFOFF
Front washer switch ONON
Other than front wiper switch INTOFF
Front wiper switch INTON
Front wiper is not in STOP positionOFF
Front wiper is in STOP positionON
Other than turn signal switch RHOFF
Turn signal switch RHON
Other than turn signal switch LHOFF
Turn signal switch LHON
Other than lighting switch 1ST and 2NDOFF
Lighting switch 1ST or 2NDON
Other than lighting switch HIOFF
Lighting switch HION
Other than lighting switch 2NDOFF
Lighting switch 2NDON
Other than lighting switch 2NDOFF
Lighting switch 2NDON
Other than lighting switch PASSOFF
Lighting switch PASSON
Other than lighting switch AUTOOFF
Lighting switch AUTOON
Front fog lamp switch OFFOFF
Front fog lamp switch ONON
NOTE:
The item is indicated, but not monitored.
Driver door closedOFF
Driver door openedON
Passenger door closedOFF
Passenger door openedON
Rear RH door closedOFF
Rear RH door openedON
Rear LH door closedOFF
Rear LH door openedON
OFF
A
B
C
D
E
F
G
H
I
J
K
L
M
WCS
N
O
P
WCS-59
Page 60
BCM (BODY CONTROL MODULE)
Revision: October 2006
2007 G35 Sedan
< ECU DIAGNOSIS >
Monitor ItemConditionValue/Status
DOOR SW-BK
CDL LOCK SW
CDL UNLOCK SW
KEY CYL LK-SW
KEY CYL UN-SW
KEY CYL SW-TR
HAZARD SW
REAR DEF SW
H/L WASH SW
TR CANCEL SW
TR/BD OPEN SW
TRNK/HAT MNTR
RKE-LOCK
RKE-UNLOCK
RKE-TR/BD
RKE-PANIC
RKE-P/W OPEN
RKE-MODE CHG
OPTICAL SENSOR
REQ SW-DR
REQ SW-AS
REQ SW-BD/TR
NOTE:
The item is indicated, but not monitored.
Other than power door lock switch LOCKOFF
Power door lock switch LOCKON
Other than power door lock switch UNLOCKOFF
Power door lock switch UNLOCKON
Other than driver door key cylinder LOCK positionOFF
Driver door key cylinder LOCK positionON
Other than driver door key cylinder UNLOCK positionOFF
Driver door key cylinder UNLOCK positionON
NOTE:
The item is indicated, but not monitored.
Hazard switch is not pressedOFF
Hazard switch is pressedON
NOTE:
The item is indicated, but not monitored.
NOTE:
The item is indicated, but not monitored.
Trunk lid opener cancel switch OFFOFF
Trunk lid opener cancel switch ONON
Trunk lid opener switch OFFOFF
While the trunk lid opener switch is turned ONON
Trunk lid closedOFF
Trunk lid openedON
LOCK button of Intelligent Key is not pressedOFF
LOCK button of Intelligent Key is pressedON
UNLOCK button of Intelligent Key is not pressedOFF
UNLOCK button of Intelligent Key is pressedON
TRUNK OPEN button of Intelligent Key is not pressedOFF
TRUNK OPEN button of Intelligent Key is pressedON
PANIC button of Intelligent Key is not pressedOFF
PANIC button of Intelligent Key is pressedON
UNLOCK button of Intelligent Key is not pressedOFF
UNLOCK button of Intelligent Key is pressed and held ON
LOCK/UNLOCK button of Intelligent Key is not pressed and held si-
multaneously
LOCK/UNLOCK button of Intelligent Key is pressed and held simul-
taneously
Outside of the vehicle bri ghtClose to 5 V
Outside of the vehicle darkClose to 0 V
Driver door request switch is not pressedOFF
Driver door request switch is presse dON
Passenger door request switch is not pressedOFF
Passenger door request switch is pressedON
Trunk request switch is not pressedOFF
Trunk request switch is pressedON
OFF
OFF
OFF
OFF
OFF
ON
WCS-60
Page 61
< ECU DIAGNOSIS >
Revision: October 2006
2007 G35 Sedan
BCM (BODY CONTROL MODULE)
Monitor ItemConditionValue/Status
PUSH SW
IGN RLY2 -F/B
ACC RLY -F/B
CLUCH SW
BRAKE SW 1
DETE/CANCL SW
SFT PN/N SW
S/L -LOCK
S/L -UNLOCK
S/L RELAY-F/B
UNLK SEN-DR
PUSH SW -IPDM
IGN RLY1 -F/B
DETE SW -IPDM
SFT PN -IPDM
SFT P -MET
SFT N -MET
ENGINE STATE
S/L LOCK-IPDM
S/L UNLK-IPDM
S/L RELAY-REQ
Push-button ignition switch (push switch) is not pressedOFF
Push-button ignition switch (pus h switch) is pressedON
Ignition switch in OFF or ACC positionOFF
Ignition switch in ON positionON
Ignition switch in OFF positionOFF
Ignition switch in ACC or ON positionON
The clutch pedal is not depressedOFF
The clutch pedal is depressedON
The brake pedal is not depressedON
The brake pedal is depressedOFF
Selector lever in P positionOFF
Selector lever in any position other than PON
Selector lever in any position other than P and NOFF
Selector lever in P or N positionON
Steering is lockedOFF
Steering is unlockedON
Steering is unlockedOFF
Steering is lockedON
Ignition switch is OFF or ACC positionOFF
Ignition switch is ON positionON
Driver door is unlockedOFF
Driver door is lockedON
Push-button ignition switch (push-switch) is not pressedOFF
Push-button ignition switch (push-s witch) is pressedON
Ignition switch is OFF or ACC positionOFF
Ignition switch is ON positionON
Selector lever in P positionOFF
Selector lever in any position other than PON
Selector lever in any position other than P and NOFF
Selector lever in P or N positionON
Selector lever in any position other than POFF
Selector lever in P positionON
Selector lever in any position other than NOFF
Selector lever in N positionON
Engine stoppedSTOP
While the engine stallsSTALL
At engine crankingCRANK
Engine runningRUN
Steering is lockedOFF
Steering is unlockedON
Steering is unlockedOFF
Steering is lockedON
Ignition switch in OFF or ACC positionOFF
Ignition switch in ON positionON
A
B
C
D
E
F
G
H
I
J
K
L
M
WCS
N
O
P
WCS-61
Page 62
BCM (BODY CONTROL MODULE)
Revision: October 2006
2007 G35 Sedan
< ECU DIAGNOSIS >
Monitor ItemConditionValue/Status
VEH SPEED 1While drivingEquivalent to speedometer reading
VEH SPEED 2While drivingEquivalent to speedometer reading
Driver door is lockedLOCK
DOOR STAT-DR
DOOR STAT-AS
ID OK FLAG
PRMT ENG STRT
PRMT RKE STRT
KEY SW -SLOT
RKE OPE COUN1During the operation of Intelligent KeyOperation frequency of Intelligent Key
RKE OPE COUN2
AIR PRESS FL
AIR PRESS FR
AIR PRESS RR
AIR PRESS RL
ID REGST FL1
ID REGST FR1
ID REGST RR1
ID REGST RL1
WARNING LAMP
BUZZER
Wait with selective UNLOCK operation (5 seconds)READY
Driver door is unlockedUNLK
Passenger door is lockedLOCK
Wait with selective UNLOCK operation (5 seconds)READY
Passenger door is unlockedUNLK
Ignition switch in ACC or ON positionRESET
Ignition switch in OFF positionSET
The engine start is prohibitedRESET
The engine start is permittedSET
NOTE:
The item is indicated, but not monitored.
Intelligent Key is not inserted into key slotOFF
Intelligent Key is inserted into key slotON
NOTE:
The item is indicated, but not monitored.
Ignition switch ON (Only when the signal from the transmitter is re-
ceived)
Ignition switch ON (Only when the signal from the transmitter is re-
ceived)
Ignition switch ON (Only when the signal from the transmitter is re-
ceived)
Ignition switch ON (Only when the signal from the transmitter is re-
ceived)
ID of front LH tire transmitter is registeredDONE
ID of front LH tire transmitter is not registeredYET
ID of front RH tire transmitter is registeredDONE
ID of front RH tire transmitter is not registeredYET
ID of rear RH tire transmitter is registeredDONE
ID of rear RH tire transmitter is not registeredYET
ID of rear LH tire transmitter is registeredDONE
ID of rear LH tire transmitter is not registeredYET
Tire pressure indicator OFFOFF
Tire pressure indicator ONON
Tire pressure warning alarm is not soundingOFF
Tire pressure warning alarm is soundingON
RESET
Air pressure of front LH tire
Air pressure of front RH tire
Air pressure of rear RH tire
Air pressure of rear LH tire
—
WCS-62
Page 63
< ECU DIAGNOSIS >
Revision: October 2006
2007 G35 Sedan
TERMINAL LAYOUT
BCM (BODY CONTROL MODULE)
A
B
C
D
E
F
G
H
I
J
K
L
M
WCS
N
O
PHYSICAL VALUES
JPMIA0062ZZ
P
WCS-63
Page 64
< ECU DIAGNOSIS >
Revision: October 2006
2007 G35 Sedan
BCM (BODY CONTROL MODULE)
Terminal No.
(Wire color)
1
Ground Battery power supplyInputIgnition switch OFFBattery voltage
(W)
2
Ground
(Y)
3
Ground
(O)
4
Ground
(LG)
5
Ground
(V)
7
Ground Step lampOutput S tep lamp
(Y)
8
Ground
(V)
9
Ground
(G)
10
Ground
(BR)
11
Ground Battery power supplyInputIgnition switch OFFBattery voltage
(R)
13
Ground Ground—Ignition switch ON0 V
(B)
14
Ground
(W)
P/W power supply
(BAT)
P/W power supply
(RAP)
Interior room lamp
power supply
Passenger door UNLOCK
All doors, fuel lid
LOCK
Driver door, fuel lid
UNLOCK
Rear RH door and
rear LH door UNLOCK
Push-button ignition
switch illumination
ground
Description
Signal name
Input/
Output+–
Output Ignition switch OFFBattery voltage
Output Ignition switch ONBattery voltage
After passing the interior room lamp battery sav-
Output
Output Passenger door
Output All doors, fuel lid
Output
Output
Output Tail lamp
er operation time
Any other time after passi ng the interior room
lamp battery saver operation time
Driver door, fuel
lid
Rear RH door
and rear LH door
Condition
UNLOCK (Actuator is activated)
Other than UNLOCK (Actuator is not activated)
ON0 V
OFFBattery voltage
LOCK (Actuator is activat-
ed)
Other than LOCK (Actuator
is not activated)
UNLOCK (Actuator is acti-
vated)
Other than UNLOCK (Actu-
ator is not activated)
UNLOCK (Actuator is acti-
vated)
Other than UNLOCK (Actu-
ator is not activated)
OFF0 V
ON
Value
(Approx.)
0 V
Battery voltage
Battery voltage
0 V
Battery voltage
0 V
Battery voltage
0 V
Battery voltage
0 V
NOTE:
When the illumination brightening/dimming level is in the neutral
position
15
Ground ACC indicator lampOutput Ignition switch
(Y)
JSNIA0010GB
OFFBattery voltage
ACC or ON0 V
WCS-64
Page 65
< ECU DIAGNOSIS >
Revision: October 2006
2007 G35 Sedan
BCM (BODY CONTROL MODULE)
Terminal No.
(Wire color)
17
Ground Turn signal (front RH) Output
(W)
18
Ground Turn signal (front LH) Output
(O)
19
(V)
Ground
Room lamp timer
control
Description
Signal name
Input/
Output+–
Output
Ignition switch
ON
Ignition switch
ON
Interior room
lamp
Condition
Turn signal switch OFF0 V
Turn signal switch RH
Turn signal switch OFF0 V
Turn signal switch LH
OFFBattery voltage
ON0 V
Turn signal switch OFF0 V
Value
(Approx.)
6.5 V
6.5 V
PKID0926E
PKID0926E
A
B
C
D
E
F
G
H
I
20
Ground Turn signal (rear RH) Output
(V)
23
Ground Trunk lid opening.Output Trunk lid
(G)
25
Ground Turn signal (rear LH)Output
(G)
30
Ground Trunk room lampOutput Trunk room lamp
(R)
Ignition switch
ON
Ignition switch
ON
Turn signal switch RH
Open (Trunk lid opener actuator is activated)
Close (Trunk lid open er a ctuator is not activated)
Turn signal switch OFF0 V
Turn signal switch LH
ON0 V
OFFBattery voltage
Battery voltage
0 V
6.5 V
6.5 V
PKID0926E
PKID0926E
J
K
L
M
WCS
N
O
P
WCS-65
Page 66
< ECU DIAGNOSIS >
B
B
B
B
B
B
Revision: October 2006
2007 G35 Sedan
BCM (BODY CONTROL MODULE)
Terminal No.
(Wire color)
34
Ground
(SB)
Description
Signal name
Trunk room antenna
1 (-)
Input/
Output+–
Output
Ignition switch
OFF
Condition
When Intelligent Key is in
the passenger compartment
When Intelligent Key is not
in the passenger compartment
When Intelligent Key is in
the passenger compartment
Value
(Approx.)
JMKIA0062G
JMKIA0063G
35
(V)
38
(B)
Ground
Ground
Trunk room antenna
1 (+)
Rear bumper antenna (-)
Output
Output
Ignition switch
OFF
When the trunk
lid request switch
is operated with
ignition switch
OFF
JMKIA0062G
When Intelligent Key is not
in the passenger compartment
JMKIA0063G
When Intelligent Key is in
the antenna detection area
JMKIA0062G
When Intelligent Key is not
in the antenna detection
area
JMKIA0063G
WCS-66
Page 67
< ECU DIAGNOSIS >
B
B
B
Revision: October 2006
2007 G35 Sedan
BCM (BODY CONTROL MODULE)
Terminal No.
(Wire color)
39
Ground
(W)
47
Ground
(Y)
Description
Signal name
Rear bumper antenna (+)
Ignition relay (IPDM
E/R) control
Input/
Output+–
When the trunk
Output
Output Ignition switch
lid request switch
is operated with
ignition switch
OFF
Condition
When Intelligent Key is in
the antenna detection area
When Intelligent Key is not
in the antenna detection
area
OFF or ACCBattery voltage
ON0 V
Value
(Approx.)
A
B
C
JMKIA0062G
D
E
F
JMKIA0063G
G
H
50
Ground
(R)
52
Ground Starter relay controlOutput
(SB)
61
Ground Trunk request switchInput
(W)
Trunk room lamp
switch
Input
Trunk room l amp
switch
Ignition switch
OFF (M/T models)
Ignition switch
ON (A/T models)
Trunk request
switch
OFF (Trunk is closed)
ON (Trunk is open)0 V
When the clutch pedal is
depressed
When the clutch pedal is
not depressed
When selector lever is in P
or N position and the brake
is depressed
When selector lever is in P
or N position and the brake
is not depressed
ON (Pressed)0 V
OFF (Not pressed)
Battery voltage
0 V
Battery voltage
0 V
11.8 V
JPMIA0011GB
I
J
K
L
M
WCS
N
O
P
64
Ground
(V)
Request switch buzzer
Output
Request switch
buzzer
WCS-67
JPMIA0016G
1.0 V
Sounding0 V
Not soundingBattery voltage
Page 68
< ECU DIAGNOSIS >
B
B
Revision: October 2006
2007 G35 Sedan
BCM (BODY CONTROL MODULE)
Terminal No.
(Wire color)
67
(GR)
Ground
68
Ground Rear RH door switchInput
(BR)
Description
Signal name
Trunk lid opener
switch
Input/
Output+–
Input
Trunk lid opener
switch
Rear RH door
switch
Condition
Pressed0 V
Not pressed
OFF (When rear RH door
closes)
ON (When rear RH door
opens)
Value
(Approx.)
JPMIA0011GB
11.8 V
JPMIA0011GB
11.8 V
0 V
69
Ground Rear LH door switchInput
(R)
72
(R)
Ground
Room antenna 2 (-)
(center console)
Output
Rear LH door
switch
Ignition switch
OFF
OFF (When rear LH door
closes)
ON (When rear LH door
opens)
When Intelligent Key is in
the passenger compartment
When Intelligent Key is not
in the passenger compartment
JPMIA0011GB
11.8 V
0 V
JMKIA0062G
JMKIA0063G
WCS-68
Page 69
< ECU DIAGNOSIS >
B
B
B
B
B
B
Revision: October 2006
2007 G35 Sedan
BCM (BODY CONTROL MODULE)
Terminal No.
(Wire color)
73
Ground
(G)
Description
Signal name
Room antenna 2 (+)
(center console)
Input/
Output+–
Output
Ignition switch
OFF
Condition
When Intelligent Key is in
the passenger compartment
When Intelligent Key is not
in the passenger compartment
When Intelligent Key is in
the antenna detection area
Value
(Approx.)
A
B
C
JMKIA0062G
D
E
F
JMKIA0063G
G
H
74
(SB)
75
(BR)
Ground
Ground
Passenger door antenna (-)
Passenger door antenna (+)
Output
Output
When the passenger door request switch is
operated with ignition switch OFF
When the passenger door request switch is
operated with ignition switch OFF
When Intelligent Key is not
in the antenna detection
area
When Intelligent Key is in
the antenna detection area
When Intelligent Key is not
in the antenna detection
area
JMKIA0062G
JMKIA0063G
JMKIA0062G
I
J
K
L
M
WCS
N
O
P
JMKIA0063G
WCS-69
Page 70
< ECU DIAGNOSIS >
B
B
B
B
B
B
Revision: October 2006
2007 G35 Sedan
BCM (BODY CONTROL MODULE)
Terminal No.
(Wire color)
76
Ground
(V)
Description
Signal name
Driver door antenna
(-)
Input/
Output+–
Output
When the driver
door request
switch is operated with ignition
switch OFF
Condition
When Intelligent Key is in
the antenna detection area
When Intelligent Key is not
in the antenna detection
area
Value
(Approx.)
JMKIA0062G
JMKIA0063G
77
(LG)
78
(Y)
Ground
Ground
Driver door antenna
(+)
Room antenna (-) (instrument panel)
Output
Output
When the driver
door request
switch is operated with ignition
switch OFF
Ignition switch
OFF
When Intelligent Key is in
the antenna detection area
JMKIA0062G
When Intelligent Key is not
in the antenna detection
area
JMKIA0063G
When Intelligent Key is in
the passenger compartment
JMKIA0062G
When Intelligent Key is not
in the passenger compartment
JMKIA0063G
WCS-70
Page 71
< ECU DIAGNOSIS >
B
B
B
B
Revision: October 2006
2007 G35 Sedan
BCM (BODY CONTROL MODULE)
Terminal No.
(Wire color)
79
Ground
(BR)
80
81
(W)
82
(R)
Ground
Ground
Ground
(GR)
Description
Signal name
Room antenna (+)
(instrument panel)
NATS antenna amp
(built in key slot)
NATS antenna amp
(built in key slot)
Ignition relay (relay
box) control
Input/
Output+–
Output
Input/
Output
Input/
Output
Output Ignition switch
Ignition switch
OFF
During waiting
During waiting
Condition
When Intelligent Key is in
the passenger compartment
When Intelligent Key is not
in the passenger compartment
Ignition switch is pressed
while inserting the Intelligent Key into the key slot.
Ignition switch is pressed
while inserting the Intelligent Key into the key slot.
OFF or ACC0 V
ONBattery voltage
Just after pressing ignition
switch. Pointer of tester should
move.
Just after pressing ignition
switch. Pointer of tester should
move.
Value
(Approx.)
A
B
C
JMKIA0062G
D
E
F
JMKIA0063G
G
H
I
83
(Y)
Ground
Remote keyless entry
receiver signal
Input/
Output
During waiting
When operating either button on Intelligent Key
JMKIA0064G
JMKIA0065G
J
K
L
M
WCS
N
O
P
WCS-71
Page 72
< ECU DIAGNOSIS >
B
B
B
Revision: October 2006
2007 G35 Sedan
BCM (BODY CONTROL MODULE)
Terminal No.
(Wire color)
87
Ground
(BR)
Description
Signal name
Combination switch
INPUT 5
Input/
Output+–
Input
Combination
switch
Condition
All switch OFF
(Wiper intermittent dial 4)
Front fog lamp switch ON
(Wiper intermittent dial 4)
Any of the conditions below
with all switch OFF
• Wiper intermittent dial 1
• Wiper intermittent dial 2
• Wiper intermittent dial 6
• Wiper intermittent dial 7
Value
(Approx.)
JPMIA0041G
1.4 V
JPMIA0037G
1.3 V
JPMIA0040G
1.3 V
WCS-72
Page 73
< ECU DIAGNOSIS >
B
B
B
B
B
Revision: October 2006
2007 G35 Sedan
BCM (BODY CONTROL MODULE)
Terminal No.
(Wire color)
88
Ground
(V)
Description
Signal name
Combination switch
INPUT 3
Input/
Output+–
Input
Combination
switch
Condition
All switch OFF
(Wiper intermittent dial 4)
Lighting switch HI
(Wiper intermittent dial 4)
Lighting switch 2ND
(Wiper intermittent dial 4)
Value
(Approx.)
1.4 V
1.3 V
A
B
C
JPMIA0041G
D
E
F
JPMIA0036G
G
H
89
Ground
(BR)
90
Ground CAN - L
(P)
91
Ground CAN - H
(L)
92
Ground Key slot illuminationOutput
(LG)
Push-button ignition
switch (push switch)
Input
Input/
Output
Input/
Output
Push-button ignition switch (push
switch)
Key slot illumination
JPMIA0037G
1.3 V
I
J
Any of the conditions below
with all switches OFF
• Wiper intermittent dial 1
• Wiper intermittent dial 2
• Wiper intermittent dial 3
JPMIA0040G
1.3 V
Pressed0 V
Not pressedBattery voltage
——
——
OFF0 V
K
L
M
WCS
N
O
Blinking
P
JPMIA0015G
6.5 V
ONBattery voltage
WCS-73
Page 74
< ECU DIAGNOSIS >
B
B
Revision: October 2006
2007 G35 Sedan
BCM (BODY CONTROL MODULE)
Terminal No.
(Wire color)
93
Ground ON indicator lampOutput Ignition switch
(V)
95
Ground ACC relay controlOutput Ignition switch
(O)
96
97
(L)
98
(P)
99
(R)
100
(G)
Ground
Ground
Ground
Ground
Ground
(GR)
Description
Signal name
A/T device (detention
switch) power supply
Steering lock condition No. 1
Steering lock condition No. 2
Selector lever P position switch
Passenger door request switch
Input/
Output+–
Output—Battery voltage
InputS teering lock
InputS teering lock
InputSelector lever
Input
Passenger door
request switch
Condition
OFF or ACC0 V
ONBattery voltage
OFF0 V
ACC or ONBattery voltage
LOCK status0 V
UNLOCK statusBattery voltage
LOCK statusBattery voltage
UNLOCK status0 V
P position0 V
Any position other than PBattery voltage
ON (Pressed)0 V
OFF (Not pressed)
(Approx.)
Value
101
(SB)
102
(O)
103
(LG)
106
(W)
Ground
Ground
Ground
Ground
Driver door request
switch
Blower fan motor relay control
Remote keyless entry
receiver power supply
Steering wheel lock
unit power supply
ON (Pressed)0 V
Input
Output Ignition switch
Output Ignition switch OFFBattery voltage
Output Ignition switch
Driver door request switch
OFF (Not pressed)
OFF or ACC0 V
ONBattery voltage
OFF or ACCBattery voltage
ON0 V
JPMIA0016G
1.0 V
JPMIA0016G
1.0 V
WCS-74
Page 75
< ECU DIAGNOSIS >
B
B
B
B
B
Revision: October 2006
2007 G35 Sedan
BCM (BODY CONTROL MODULE)
Terminal No.
(Wire color)
107
Ground
(LG)
Description
Signal name
Combination switch
INPUT 1
Input/
Output+–
Input
Combination
switch
(Wiper intermittent dial 4)
Condition
All switch OFF
Turn signal switch LH
Turn signal switch RH
Value
(Approx.)
1.4 V
1.3 V
1.3 V
JPMIA0041G
JPMIA0037G
JPMIA0036G
A
B
C
D
E
F
G
H
I
Front wiper switch LO
Front washer switch ON
1.3 V
1.3 V
JPMIA0038G
JPMIA0039G
J
K
L
M
WCS
N
O
P
WCS-75
Page 76
< ECU DIAGNOSIS >
B
B
B
B
Revision: October 2006
2007 G35 Sedan
BCM (BODY CONTROL MODULE)
Terminal No.
(Wire color)
108
Ground
(R)
Description
Signal name
Combination switch
INPUT 4
Input/
Output+–
Input
Combination
switch
Condition
All switch OFF
(Wiper intermittent dial 4)
Lighting switch AUTO
(Wiper intermittent dial 4)
Value
(Approx.)
JPMIA0041G
1.4 V
JPMIA0038G
1.3 V
Lighting switch 1ST
(Wiper intermittent dial 4)
Any of the conditions below
with all switches OFF
• Wiper intermittent dial 1
• Wiper intermittent dial 5
• Wiper intermittent dial 6
JPMIA0036G
1.3 V
JPMIA0039G
1.3 V
WCS-76
Page 77
< ECU DIAGNOSIS >
B
B
B
B
B
B
Revision: October 2006
2007 G35 Sedan
BCM (BODY CONTROL MODULE)
Terminal No.
(Wire color)
109
Ground
(Y)
Description
Signal name
Combination switch
INPUT 2
Input/
Output+–
Input
Combination
switch
(Wiper intermittent dial 4)
Condition
All switch OFF
Lighting switch PASS
Lighting switch 2ND
Value
(Approx.)
1.4 V
1.3 V
1.3 V
JPMIA0041G
JPMIA0037G
JPMIA0036G
A
B
C
D
E
F
G
H
I
110
Ground Hazard switchInputHazard switch
(G)
Front wiper switch INT
Front wiper switch HI
Pressed0 V
Not pressed
1.3 V
1.3 V
JPMIA0038G
JPMIA0040G
J
K
L
M
WCS
N
O
P
JPMIA0012G
1.1 V
WCS-77
Page 78
< ECU DIAGNOSIS >
B
Revision: October 2006
2007 G35 Sedan
BCM (BODY CONTROL MODULE)
Terminal No.
(Wire color)
111
Ground
(Y)
113
Ground Optical sensor signalInput
(P)
114
Ground
(R)
116
Ground Stop lamp switch 1Input—Battery voltage
(SB)
118
Ground Stop lamp switch 2Input
(P)
Steering lock unit
communication
Clutch interlock
switch
Description
Signal name
Input/
Output+–
Input/
Output
Input
Steering lock
Ignition switch
ON
Clutch interlock
switch
Stop lamp switch
ICC brake hold
relay (With ICC)
Condition
LOCK statusBattery voltage
LOCK or UNLOCK
For 15 seconds after UNLOCK
15 seconds or later after
UNLOCK
When bright outside of the
vehicle
When dark outside of the
vehicle
OFF (Clutch pedal is not
depressed)
ON (Clutch pedal is depressed)
OFF (Brake pedal is not
depressed)
ON (Brake pedal is depressed)
OFF0 V
ONBattery voltage
Value
(Approx.)
JMKIA0066G
Battery voltage
0 V
Close to 5 V
Close to 0 V
0 V
Battery voltage
0 V
Battery voltage
119
Ground
(SB)
121
Ground Key slot switchInput
(R)
122
Ground ACC feedback signalInputIgnition switch
(V)
123
Ground IGN feedback signalInputIgnition switch
(W)
Front door lock assembly driver side
(unlock sensor)
InputDriver door
When Intelligent Key is inserted into key slotBattery voltage
When Intelligent Key is not inserted into key slot 0 V
WCS-78
LOCK status
JPMIA0011GB
11.8 V
UNLOCK status0 V
OFF0 V
ACC or ONBattery voltage
OFF or ACC0 V
ONBattery voltage
Page 79
< ECU DIAGNOSIS >
B
B
B
Revision: October 2006
2007 G35 Sedan
BCM (BODY CONTROL MODULE)
Terminal No.
(Wire color)
124
Ground
(LG)
129
Ground
(O)
Description
Signal name
Passenger door
switch
Trunk lid opener cancel switch
Input/
Output+–
Input
Input
Passenger door
switch
Trunk lid opener
cancel switch
Condition
OFF (When passenger
door closes)
ON (When passenger door
opens)
CANCEL
ON0 V
0 V
Value
(Approx.)
11.8 V
1.1 V
JPMIA0011GB
JPMIA0012G
A
B
C
D
E
F
G
H
132
(V)
133
(W)
134
(GR)
137
(O)
138
(V)
Ground
Ground
Ground LOCK indicator lamp Output
Ground
Ground
Power window switch
communication
Push-button ignition
switch illumination
Receiver and sensor
ground
Receiver and sensor
power supply output
Input/
Output
Output
InputIgnition switch ON0 V
Output Ignition switch
Ignition switch ON
Ignition switch OFF or ACC0 V
ON (When tail lamps OFF) 5.5 V
NOTE:
The pulse width of this wa ve is
varied by the illumination brightening/dimming level.
Push-button ignition switch illumination
LOCK indicator
lamp
ON (When tail lamps ON)
OFF0 V
ON0 V
OFFBattery voltage
OFF0 V
ACC or ON5.0 V
10.2 V
JPMIA0013G
JPMIA0159G
I
J
K
L
M
WCS
N
O
P
WCS-79
Page 80
< ECU DIAGNOSIS >
B
B
B
Revision: October 2006
2007 G35 Sedan
BCM (BODY CONTROL MODULE)
Terminal No.
(Wire color)
139
Ground
(L)
140
(GR)
Ground
Description
Signal name
Tire pressure receiver signal
Selector lever P/N
position signal
Input/
Output+–
Input/
Output
Ignition switch
ON
InputSelector lever
Condition
Standby state
When receiving the signal
from the transmitter
P or N position12.0 V
Except P and N positions0 V
ON0 V
Value
(Approx.)
OCC3881D
OCC3880D
141
(G)
142
(O)
143
(P)
Ground
Ground
Ground
Security indicator signal
Combination switch
OUTPUT 5
Combination switch
OUTPUT 1
Output Security indicator
Combination
Output
switch
(Wiper intermittent dial 4)
Output
Combination
switch
Blinking
OFFBattery voltage
All switch OFF0 V
Lighting switch 1ST
Lighting switch HI
Lighting switch 2ND
Turn signal switch RH
All switch OFF
(Wiper intermittent dial 4)
0 V
Front wiper switch HI
(Wiper intermittent dial 4)
Any of the conditions below
with all switch OFF
• Wiper intermittent dial 1
• Wiper intermittent dial 2
• Wiper intermittent dial 3
• Wiper intermittent dial 6
• Wiper intermittent dial 7
10.7 V
JPMIA0014G
11.3 V
JPMIA0031G
10.7 V
JPMIA0032G
WCS-80
Page 81
< ECU DIAGNOSIS >
B
B
B
Revision: October 2006
2007 G35 Sedan
BCM (BODY CONTROL MODULE)
Terminal No.
(Wire color)
144
Ground
(G)
145
Ground
(L)
146
Ground
(SB)
149
Ground
(W)
Description
Signal name
Combination switch
OUTPUT 2
Combination switch
OUTPUT 3
Combination switch
OUTPUT 4
Tire pressure warning check switch
Input/
Output+–
Output
Output
Output
Input—5 V
Combination
switch
Combination
switch
(Wiper intermittent dial 4)
Combination
switch
(Wiper intermittent dial 4)
Condition
All switch OFF
(Wiper intermittent dial 4)
Front washer switch ON
(Wiper intermittent dial 4)
Any of the conditions below
with all switches OFF
• Wiper intermittent dial 1
• Wiper intermittent dial 5
• Wiper intermittent dial 6
All switches OFF0 V
Front wiper switch INT
Front wiper switch LO
Lighting switch AUTO
All switch OFF0 V
Front fog lamp switch ON
Lighting switch 2ND
Lighting switch PASS
Turn signal switch LH
0 V
Value
(Approx.)
10.7 V
10.7 V
10.7 V
A
B
C
D
JPMIA0033G
E
F
G
JPMIA0034G
H
I
J
JPMIA0035G
K
150
(GR)
Ground Driver door switchInpu t
151
Ground
(G)
Rear window defogger relay
Output
Driver door
switch
Rear window defogger
WCS-81
OFF (When driver door
closes)
ON (When driver door
opens)
Active0 V
Not activatedBattery voltage
0 V
11.8 V
JPMIA0011GB
L
M
WCS
N
O
P
Page 82
< ECU DIAGNOSIS >
B
Revision: October 2006
2007 G35 Sedan
BCM (BODY CONTROL MODULE)
Wiring Diagram — BCM —
INFOID:0000000000964508
JCMWA0005G
WCS-82
Page 83
< ECU DIAGNOSIS >
B
Revision: October 2006
2007 G35 Sedan
BCM (BODY CONTROL MODULE)
A
B
C
D
E
F
G
H
I
J
K
L
M
WCS
N
O
JCMWA0006G
P
WCS-83
Page 84
< ECU DIAGNOSIS >
B
Revision: October 2006
2007 G35 Sedan
BCM (BODY CONTROL MODULE)
JCMWA0007G
WCS-84
Page 85
< ECU DIAGNOSIS >
B
Revision: October 2006
2007 G35 Sedan
BCM (BODY CONTROL MODULE)
A
B
C
D
E
F
G
H
I
J
K
L
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WCS
N
O
JCMWA0008G
P
WCS-85
Page 86
< ECU DIAGNOSIS >
B
Revision: October 2006
2007 G35 Sedan
BCM (BODY CONTROL MODULE)
JCMWA0009G
WCS-86
Page 87
< ECU DIAGNOSIS >
B
Revision: October 2006
2007 G35 Sedan
BCM (BODY CONTROL MODULE)
A
B
C
D
E
F
G
H
I
J
K
L
M
WCS
N
O
Fail SafeINFOID:0000000000964509
Display contents of CONSULTFail-safeCancellation
B2013: ID DISCORD BCM-S/LInhibit engine crankingErase DTC
B2014: CHAIN OF S/L-BCMInhibit engine crankingErase DTC
B2190: NATS ANTTENA AMPInhibit engine crankingErase DTC
JCMWA0010G
P
WCS-87
Page 88
BCM (BODY CONTROL MODULE)
Revision: October 2006
2007 G35 Sedan
< ECU DIAGNOSIS >
Display contents of CONSULTFail-safeCancellation
B2191: DIFFERENCE OF KEYInhibit engine crankingErase DTC
B2192: ID DISCORD BCM-ECMInhibit engine crankingErase DTC
B2193: CHAIN OF BCM-ECMInhibit engine crankingErase DTC
B2557: VEHICLE SPEEDInhibit steering lock
B2560: STARTER CONT RELAYInhibit engine cranking
B2563: HI VOLTAGE
B2601: SHIFT POSITIONInhibit steering lock
B2602: SHIFT POSITIONInhibit steering lock
B2603: SHIFT POSI STATUSInhibit steering lock
B2604: PNP SWInhibit steering lock
B2605: PNP SWInhibit steering lock
B2606: S/L RELAYInhibit engine cranking
B2607: S/L RELAYInhibit engine cranking
• Inhibit engine crank ing
• Inhibit steering lock
When normal vehicle speed signals h ave been received f rom ABS
actuator and electric unit (control unit) for 500 ms
500 ms after the following CAN signal communication status has
become consistent
• Starter control relay signal
• Starter relay status signal
500 ms after the power supply voltage decreases to less than 18 V
500 ms after the following signal reception status becomes consis-
tent
• Selector lever P position swi tch sign al
• P range signal (CAN)
5 seconds after the following BCM recognition conditions are ful-
filled
• Ignition switch is in the ON position
• Selector lever P position switch signal: Except P position (battery
voltage)
• Vehicle speed: 4 /h or more
500 ms after the following BCM recognition conditions are fulfilled
• Ignition switch is in the ON position
• Selector lever P position switch signal: Except P position (battery
voltage)
• Selector lever P/N position signal: Except P and N positions (0 V)
500 ms after any of the following BCM recognition conditions is fulfilled
•Status 1
- Ignition switch is in the ON position
- Selector lever P/N position signal: P and N position (battery voltage)
- P range signal or N range signal (CAN): ON
•Status 2
- Ignition switch is in the ON position
- Selector lever P/N position signal: Except P and N positions (0 V)
- P range signal and N range signal (CAN): OFF
500 ms after any of the following BCM recognition conditions is fulfilled
• Ignition switch is in the ON position
- Power position: IGN
- Selector lever P/N position signal: Except P and N positions (0 V)
- Interlock/PNP switch signal (CAN): OFF
•Status 2
- Ignition switch is in the ON position
- Selector lever P/N position signal: P or N position (battery voltage)
- PNP switch signal (CAN): ON
500 ms after the following CAN signal communication status has
become consistent
• Steering lock relay signal (Request signal)
• Steering lock relay signal (Condition signal)
500 ms after the following CAN signal communication status has
become consistent
• Steering lock relay signal (Request signal)
• Steering lock relay signal (Condition signal)
WCS-88
Page 89
< ECU DIAGNOSIS >
Revision: October 2006
2007 G35 Sedan
BCM (BODY CONTROL MODULE)
Display contents of CONSULTFail-safeCancellation
500 ms after the following signal communication status becomes
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
PriorityDTC
1
2
3
• B2562: LOW VOLTAGE
• B2563: HI VOLTAGE
• U1000: CAN COMM CIRCUIT
• U1010: CONTROL UNIT (CAN)
• B2190: NATS ANTTENA AMP
• B2191: DIFFERENCE OF KEY
• B2192: ID DISCORD BCM-ECM
• B2193: CHAIN OF BCM-ECM
K
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WCS
N
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WCS-89
Page 90
BCM (BODY CONTROL MODULE)
Revision: October 2006
2007 G35 Sedan
< ECU DIAGNOSIS >
PriorityDTC
• B2013: ID DISCORD BCM-S/L
• B2014: CHAIN OF S/L-BCM
• B2553: IGNITION RELAY
• B2555: STOP LAMP
• B2556: PUSH-BTN IGN SW
• B2557: VEHICLE SPEED
• B2560: STARTER CONT RELAY
• B2601: SHIFT POSITION
• B2602: SHIFT POSITION
• B2603: SHIFT POSI STATUS
• B2604: PNP SW
• B2605: PNP SW
• B2606: S/L RELAY
• B2607: S/L RELAY
• B2608: STARTER RELAY
• B2609: S/L STA TUS
4
5
6
• B260A: IGNITION RELAY
• B260B: STEERING LOCK UNIT
• B260C: STEERING LOCK UNIT
• B260D: STEERING LOCK UNIT
• B260F: ENG STATE SIG LOST
• B2611: ACC RELAY
• B2612: S/L STA TUS
• B2614: ACC RELAY CIRC
• B2615: BLOWER RELAY CIRC
• B2616: IGN RELAY CIRC
• B2617: STARTER RELAY CIRC
• B2618: BCM
• B2619: BCM
• B261A: PUSH-BTN IGN SW
• B261E: VEHICLE TYPE
• B26E1: ENG STATE NO RECIV
• C1729: VHCL SPEED SIG ERR
• U0415: VEHICLE SPEED SIG
• C1704: LOW PRESSURE FL
• C1705: LOW PRESSURE FR
• C1706: LOW PRESSURE RR
• C1707: LOW PRESSURE RL
• C1708: [NO DATA] FL
• C1709: [NO DATA] FR
• C1710: [NO DATA] RR
• C1711: [NO DATA] RL
• C1712: [CHECKSUM ERR] FL
• C1713: [CHECKSUM ERR] FR
• C1714: [CHECKSUM ERR] RR
• C1715: [CHECKSUM ERR] RL
• C1716: [PRESSDATA ERR] FL
• C1717: [PRESSDATA ERR] FR
• C1718: [PRESSDATA ERR] RR
• C1719: [PRESSDATA ERR] RL
• C1720: [CODE ERR] FL
• C1721: [CODE ERR] FR
• C1722: [CODE ERR] RR
• C1723: [CODE ERR] RL
• C1724: [BATT VOLT LOW] FL
• C1725: [BATT VOLT LOW] FR
• C1726: [BATT VOLT LOW] RR
• C1727: [BATT VOLT LOW] RL
• C1734: CONTROL UNIT
• B2621: INSIDE ANTENNA
• B2622: INSIDE ANTENNA
• B2623: INSIDE ANTENNA
DTC Index
INFOID:0000000000964511
WCS-90
Page 91
BCM (BODY CONTROL MODULE)
Revision: October 2006
2007 G35 Sedan
< ECU DIAGNOSIS >
NOTE:
Details of time display
• CRNT: Displays when there is a malfunction now or after returning to the normal condition until turning ignition switch OFF → ON again.
• 1 - 39: Displayed if any previous malfunction is present when current condition is normal. It increases like 1
→ 2 → 3...38 → 39 after returning to the normal condition whenever ignition switch OFF → ON. The counter
remains at 39 even if the number of cycles exceeds it. It is counted from 1 again when turning ignition switch
OFF → ON after returning to the normal condition if the malfunction is detected again.
CONSULT displayFail-safe
No DTC is detected.
further testing
may be required.
U1000: CAN COMM CIRCUIT———BCS-33
U1010: CONTROL UNIT (CAN)———BCS-34
U0415: VEHICLE SPEED SIG———BCS-35
B2013: ID DISCORD BCM-S/L×——SEC-43
B2014: CHAIN OF S/L-BCM×——SEC-44
B2190: NATS ANTTENA AMP×——SEC-37
B2191: DIFFERENCE OF KEY×——SEC-40
B2192: ID DISCORD BCM-ECM×——SEC-41
B2193: CHAIN OF BCM-ECM×——SEC-42
B2553: IGNITION RELAY———PCS-48
B2555: STOP LAMP———SEC-47
B2556: PUSH-BTN IGN SW—×—SEC-49
B2557: VEHICLE SPEED××—SEC-51
B2560: STARTER CONT RELAY××—SEC-52
B2562: LOW VOLTAGE———BCS-36
B2563: HI VOLTAGE××—BCS-37
B2601: SHIFT POSITION××—SEC-53
B2602: SHIFT POSITION××—SEC-56
B2603: SHIFT POSI STATUS××—SEC-58
B2604: PNP SW××—SEC-61
B2605: PNP SW××—SEC-63
B2606: S/L RELAY××—SEC-65
B2607: S/L RELAY××—SEC-66
B2608: STARTER RELAY××—SEC-68
B2609: S/L STATUS××—SEC-70
B260A: IGNITION RELAY××—PCS-50
B260B: STEERING LOCK VNIT—×—SEC-74
B260C: STEERING LOCK VNIT—×—SEC-75
B260D: STEERING LOCK VNIT—×—SEC-76
B260F: ENG STATE SIG LOST××—SEC-77
B2611: ACC RELAY———PCS-52
B2612: S/L STATUS××—SEC-79
B2614: ACC RELAY CIRC—×—PCS-54
B2615: BLOWER RELAY CIRC—×—PCS-57
Check that the headlamps operate normally by operating the combination switch (light switch).
Do they operate normally?
YES>> GO TO 2.
NO>> Refer to EXL-179, "
Diagnosis Procedure".
2.CHECK FRONT DOOR SWITCH (DRIVER SIDE) SIGNAL CIRCUIT
Perform the inspection for the front door switch (driver side) signal circuit. Refer to DLK-65, "
dure".
Is the inspection result normal?
YES>> GO TO 3.
NO>> Repair harness or connector.
3.CHECK FRONT DOOR SWITCH (DRIVER SIDE) UNIT
Perform a unit inspection for the front door switch (driver side). Refer to DLK-67, "
Is the inspection result normal?
YES>> Replace the BCM. Refer to BCS-79, "Removal and Installation".
NO>> Replace the front door switch (driver side). Refer to DLK-218, "
Component Inspection".
Removal and Installation".
Diagnosis Proce-
WCS-94
Page 95
THE SEAT BELT WARNING CONTINUES SOUNDING, OR DOES NOT SOUND
Revision: October 2006
2007 G35 Sedan
< SYMPTOM DIAGNOSIS >
THE SEAT BELT WARNING CONTINUES SOUNDING, OR DOES NOT
SOUND
DescriptionINFOID:0000000000964516
• 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:0000000000964517
1.CHECK SEAT BELT WARNING LAMP
1.Turn ignition switch ON.
2.Check the operation of the seat belt warning lamp in the combination meter.
Seat belt fastened: OFF
Seat belt not fastened: ON
Is the inspection result normal?
YES>> GO TO 2.
NO>> GO TO 4.
2.CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
Check the buckle switch input signal with the “Data Monitor”. Refer to WCS-21,
"Component Function Check".
Is the inspection result normal?
YES>> Replace the unified meter and A/C amp.
NO>> GO TO 3.
3.CHECK SEAT BELT BUCKLE SWITCH CIRCUIT
A
B
C
D
E
F
G
H
I
Perform the inspection for the seat belt buckle switch circuit. Refer to WCS-21, "
Is the inspection result normal?
YES>> Replace the unified meter and A/C amp.
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-21, "
Is the inspection result normal?
YES>> Replace the combination meter.
NO>> Replace the seat belt buckle. Refer to SB-7, "
SEAT BELT BUCKLE : Removal and Installation".
Component Inspection".
Diagnosis Procedure".
J
K
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WCS
N
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WCS-95
Page 96
AIR BAG (PATTERN 2)
Revision: October 2006
2007 G35 Sedan
< PRECAUTION >
PRECAUTION
AIR BAG (PATTERN 2)
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"INFOID:0000000000964518
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. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Manual.
WARNING:
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• 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 the SRS section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors.
WCS-96
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