2008 INFINITI FX35 Lighting System

COMBINATION SWITCHLT-99
< SERVICE INFORMATION >
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Terminal and Reference Value for BCMINFOID:0000000001328366
CAUTION:
 Check combination switch system terminal wavef orm under the loaded condition with lighting
switch, turn signal and wipe r switch OFF not to be fluctuated by overloaded.
 Turn wiper dial position to 4 except when checking w aveform or voltage of wiper dial position. Wiper
dial position can be confirmed on CONSULT-III. Refer to LT-103, "
CONSULT-III Functions (BCM)".
Te r -
mi-
nal
No. Wire
color Signal name Measuring condition
Reference value
Igni-
tion
switch Operation or condition
2G/Y Combination
switch input 5
ONLighting, turn,
wiper switch
(Wiper inter-
mittent dial po-
sition 4) OFF Approx. 0 V
Any of the conditions below
 Lighting switch 1ST
 Lighting switch HIGH BEAM
(Operates only HIGH BEAM
switch)
 Turn signal switch to right
Approx. 1.0 V
Lighting switch 2ND Approx. 2.0 V
3L/B Combination
switch input 4 ONLighting, turn,
wiper switch
(Wiper inter-
mittent dial po-
sition 4) OFF Approx. 0 V
Front fog lamp switch
(Operates only front fog lamp
switch)
Approx. 0.8 V
Any of the conditions below
 Lighting switch 2ND
 Lighting switch PASSING (Operates only PASSING switch)
 Turn signal switch to left
Approx. 0.8 V
PKIB4959J
PKIB4953J
PKIB4955J
PKIB4959J
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LT-104
< SERVICE INFORMATION >
COMBINATION SWITCH
CONSULT-III BASIC OPERATION
Refer to GI-34, "Description".
DATA MONITOR
Display Item List
NOTE:
This item is displayed, but cannot be monitored
Combination Switch InspectionINFOID:0000000001381755
1.SYSTEM CHECK
Referring to table below, check which sy stem malfunctioning switch belongs to.
>> Check the system to which malfunctioning switch belongs, and then GO TO 2.
2.SYSTEM CHECK
CONSULT-III DATA MONITOR
1. Select “COMBI SW” of BCM data monitor item.
2. Confirm that other switches in malfunctioning system operate normally.
Monitor item Contents
TURN SIGNAL R “ON/OFF” Displays “Turn Ri ght (ON)/Other (OFF)” status, determined from lighting switch signal.
TURN SIGNAL L “ON/OFF” Displays “Turn Le ft (ON)/Other (OFF)” status, determined from lighting switch signal.
HI BEAM SW “ON/OFF” Displays status (high beam switch: ON/Others: OFF) of high beam switch judged from lighting switch
signal.
HEAD LAMP SW 1 “ON/OFF” Displays status (headlamp switch 2: ON/Others:
OFF) of headlamp switch 1 judged from lighting
switch signal.
HEAD LAMP SW 2 “ON/OFF” Displays status (headlamp switch 2: ON/Others:
OFF) of headlamp switch 2 judged from lighting
switch signal.
LIGHT SW 1ST “ON/OFF” Displays status (lighting switch 1ST or 2ND position: ON/Others: OFF) of lighting switch judged from
lighting switch signal.
PASSING SW “ON/OFF” Displays status (flash-to-pass switch: ON/Others: OFF) of flash-to-pass switch judged from lighting
switch signal.
AUTO LIGHT SW “ON/OFF” Displays “Auto light switch (ON)/Other (OFF)” status, determined from lighting switch signal.
FR FOG SW “ON/OFF” Displays “Fro nt fog lamp switch (ON)/Other (OFF)” status, determined from lighting switch signal.
RR FOG SW
NOTE“OFF” —
FR WIPER HI “ON/OFF” Disp lays “Front Wiper HI (ON)/Other (OFF)” stat us, determined from wiper switch signal.
FR WIPER LOW “ON/OFF” Displays “Front Wiper LOW (ON)/Oth er (OFF)” status, determined from wiper switch signal.
FR WIPER INT “ON/OFF” Displays “Front Wiper INT (ON)/Other (OFF)” status, determined from wiper switch signal.
FR WASHER SW “ON/OFF” Displays “Front Washer Switch (ON)/Other (OFF)” status, determined from wiper switch signal.
INT VOLUME “1 – 7” Displays intermittent operation knob setting (1 – 7), determined from wiper switch signal.
RR WIPER ON “ON/OFF” Displays “rear Wiper (ON)/Other (OFF)” status as judged from wiper switch signal.
RR WIPER INT “ON/OFF” Displays “rear Wiper INT (ON)/Other (OFF)” status as judged from wiper switch signal.
RR WASHER SW “ON/OFF” Displays “rear Washer Switch (ON)/Other (OFF)” status as judged from wiper switch signal.
System 1 System 2 System 3 System 4 System 5 — FR WASHER FR WIPER LO TURN LH TURN RH
FR WIPER HI — FR WIPER INT PASSING HEAD LAMP 1
INT VOLUME 1 RR WASHER — HEAD LAMP HI BEAM RR WIPER INT INT VOLUME 3 AUTO LIGHT — LIGHT SW 1
INT VOLUME 2 RR WIPER ON — FR FOG —
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LT-106
< SERVICE INFORMATION >
COMBINATION SWITCH
1. Connect BCM connector and combination switch connector.
2. Turn ignition switch ON.
3. Lighting switch and wiper switch are turned OFF.
4. Set wiper intermittent dial position 4.
5. Check BCM input terminal voltage waveform of suspect mal-functioning system.
OK or NG
OK >> Replace BCM. Refer to BCS-13, "Removal and Installation of BCM".
NG >> Open circuit in combination switch, GO TO 6.
5.CHECK BCM OUTPUT SIGNAL
1. Connect BCM connector and combination switch connector.
2. Turn ignition switch ON.
3. Lighting switch and wiper switch are turned OFF.
4. Set wiper intermittent dial position 4.
5. Check BCM output terminal voltage waveform of suspect mal- functioning system.
OK or NG
OK >> Open circuit in combination switch, GO TO 6.
NG >> Replace BCM. Refer to BCS-13, "
Removal and Installation of BCM".
6.CHECK COMBINATION SWITCH
Referring to table below, perform combination switch inspection.
Suspect system Te r m i n a l s
Reference value
(+)
(-)
BCM
connector Te r m i n a l
1
M3 6
Ground Refer to
LT- 9 9 , "
Terminal and Ref-
erence Value for BCM".
25
34
43
52
PKID0106E
Suspect
system Te r m i n a l s
Reference value
(+)
(-)
BCM
connector Te r m i n a l
1
M3 36
Ground Approx. 7.0 - 7.5V
235
334
433
532
PKID0107E
PKIB4960J
Procedure
12 3 4 5 6 7
Re-
place
lighting switch Confirm
check
results
OK INSPECTION END
Confirm
check
resultsOK INSPECTION END
Confirm
check
resultsOK INSPECTION END
NG Replace wiper switch NG Replace switch base NG Confirm symptom again
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LT-118
< SERVICE INFORMATION >
PARKING, LICENSE PLATE AND TAIL LAMPS
PARKING, LICENSE PLATE AND TAIL LAMPS
Component Parts and Harness Connector LocationINFOID:0000000001328382
System DescriptionINFOID:0000000001328383
Control of the parking, license plate, side marker and tail lamp operation is dependent upon the position of the
lighting switch (combination switch). When the lighting switch is placed in the 1ST position, the BCM (body
control module) receives input signal requesting the parki ng, license plate, side marker and tail lamps to illumi-
nate. This input signal is communicated to the IPDM E/R (intelligent power distribution module engine room)
through the CAN communication lines. CPU (central processi ng unit) located in the IPDM E/R controls the tail
lamp relay coil. This relay, when energized, directs pow er to the parking, license plate, side marker and tail
lamps, which then illuminate.
The current that flows by Rear combination lamp cont rol unit is controlled, and a tail lamp (LED) is made to
turn ON.
OUT LINE
Power is supplied at all times
 to ignition relay, located in IP DM E/R, from battery direct,
 through 10A fuse (No. 71, located in IPDM E/R)
 to tail lamp relay, located in IPDM E/R and
 to CPU located in IPDM E/R,
 through 15A fuse (No. 78, located in IPDM E/R)
 to CPU located in IPDM E/R.
 through 50A fusible link (letter M, located in fuse, fusible link and relay box)
PKIC9694E
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PARKING, LICENSE PLATE AND TAIL LAMPS
LT-119
< SERVICE INFORMATION >
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 to BCM terminal 55,
 through 15A fuse [No. 22, located in fuse block (J/B)]
 to BCM terminal 42,
 through 10A fuse [No. 20, located in fuse block (J/B)]
 to rear combination lamp control unit terminal 1,
 through 10A fuse [No. 19, located in fuse block (J/B)]
 to combination meter terminal 8 and
 to unified meter and A/C amp. terminal 21.
With the ignition switch in ON or START position, power is supplied
 through ignition relay, located in IPDM E/R, from battery direct,
 through 15A fuse [No. 1, located in fuse block (J/B)]
 to BCM terminal 38,
 through 10A fuse [No. 14, located in fuse block (J/B)]
 to combination meter terminal 7 and
 through 10A fuse [No. 12, located in fuse block (J/B)]
 to unified meter and A/C amp. terminal 22.
With ignition switch in ACC or ON position, power is supplied
 through 10A fuse [No. 6, located in fuse block (J/B)]
 to BCM terminal 11.
Ground is supplied
 to rear combination lamp control unit terminal 7 and
 to IPDM E/R terminals 38 and 60
 through grounds E21, E50 and E51,
 to BCM terminals 49 and 52
 to combination meter terminals 5, 6 and 15, and
 to unified meter and A/C amp. terminals 29 and 30
 through grounds M35, M45 and M85.
OPERATION BY LIGHTING SWITCH
With the lighting switch in the 1ST or 2ND position (or if the auto light system is activated), the BCM receives
input signal requesting the parking, license plate, side ma rker and tail lamps to illuminate. This input signal is
communicated to the IPDM E/R through the CAN communi cation. The CPU located in the IPDM E/R controls
the tail lamp relay coil, which when energized, directs power.
 through IPDM E/R terminal 22
 to front side marker lamp LH terminal 1
 to parking lamp LH terminal 2
 to license plate lamp LH terminal 1
 to rear combination lamp LH terminal 1
 to rear combination lamp control unit terminal 2
 to front side marker lamp RH terminal 1
 to parking lamp RH terminal 2
 to license plate lamp RH terminal 1 and
 to rear combination lamp RH terminal 1.
Ground is supplied at all times
 to front side marker lamp LH terminal 2
 through grounds E21, E50 and E51,
 to parking lamp LH terminal 3
 through grounds E21, E50 and E51,
 to license plate lamp LH terminal 2
 through grounds B15 and B45,
 to rear combination lamp LH terminal 2
 through grounds B15 and B45,
 to front side marker lamp RH terminal 2
 through grounds E21, E50 and E51,
 to parking lamp RH terminal 3
 through grounds E21, E50 and E51,
 to license plate lamp RH terminal 2
 through grounds B15 and B45,
 to rear combination lamp RH terminal 2
 through grounds B203 and B210,
 to rear combination lamp control unit terminal 7
 through grounds E21, E50 and E51.
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LT-120
< SERVICE INFORMATION >
PARKING, LICENSE PLATE AND TAIL LAMPS
With power and ground supplied, the parking, license plate, side marker and tail lamps illuminate.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-4, "System Description".
EXTERIOR LAMP BATTERY SAVER CONTROL
When the combination switch (lighting switch) is in the 1ST (or 2ND) position, and the ignition switch is turned
from ON or ACC to OFF, the battery saver control feature is activated.
Under this condition, the parking, license, side marker and tail lamps remain illuminated for 5 minutes, then the
parking, license plate, side marker and tail lamps are turned off.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-III.
CAN Communication System DescriptionINFOID:0000000001328384
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication s peed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CA N communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitINFOID:0000000001328385
Refer to LAN-43, "CAN System Specification Chart".
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
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LT-126
< SERVICE INFORMATION >
PARKING, LICENSE PLATE AND TAIL LAMPS
Terminal and Reference Value for BCM
INFOID:0000000001328388
CAUTION:
 Check combination switch system terminal waveform under the loaded condition with lighting
switch, turn signal switch and wiper switch OFF not to be fluctuated by overloaded.
 Turn wiper intermittent dial posi tion to 4 except when checking wavef orm or voltage of wiper inter-
mittent dial position. Wiper intermittent dial position can be confirmed on CONSULT-III. Refer to LT-
103, "CONSULT-III Functions (BCM)".
TKWM4326E
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ILLUMINATIONLT-169
< SERVICE INFORMATION >
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ILLUMINATION
System DescriptionINFOID:0000000001328422
Control of illumination lamps operation is dependent upon position of lighting switch (combination switch).
When lighting switch is placed in the 1ST or 2ND positi on (or if auto light system is activated), BCM (body con-
trol module) receives input signal requesting illuminati on lamps to illuminate. This input signal is communi-
cated to IPDM E/R (intelligent power distribution module engine room) through the CAN communication. The
CPU (central processing unit) located in the IPDM E/R co ntrols tail lamp relay coil. This relay, when energized,
directs power to illumination lamps, which then illuminate.
Power is supplied at all times
 through 10A fuse (No. 71, located in IPDM E/R)
 to tail lamp relay, located in IPDM E/R, and
 to CPU located in IPDM E/R.
Power is also supplied at all times
 through 50A fusible link (letter M, located in fuse, fusible link and relay box)
 to BCM terminal 55,
 through 15A fuse [No. 22 located in fuse block (J/B)]
 to BCM terminal 42,
 through 15A fuse (No. 78, located in IPDM E/R)
 to CPU located in IPDM E/R,
 through 10A fuse [No. 19 located in fuse block (J/B)]
 to unified meter and A/C amp. terminal 21 and
 to combination meter terminal 8.
With ignition switch in ON or START position, power is supplied
 to ignition relay, located in IPDM E/R, from battery direct,
 through 15A fuse [No. 1 located in fuse block (J/B)]
 to BCM terminal 38,
 through 10A fuse [No. 12, located in fuse block (J/B)]
 to unified meter and A/C amp. terminal 22 and
 to combination meter terminal 7.
With ignition switch in ACC or ON position, power is supplied
 through 10A fuse [No. 6, located in fuse block (J/B)]
 to combination meter terminal 4 and
 to BCM terminal 11.
Ground is supplied
 to BCM terminals 49 and 52
 to unified meter and A/C amp. terminals 29 and 30, and
 to combination meter terminals 5, 6, and 15
 through grounds M35, M45, and M85,
 to IPDM E/R terminals 38 and 60
 through grounds E21, E50, and E51.
ILLUMINATION OPERATION BY LIGHTING SWITCH
With lighting switch in the 1ST or 2ND position (or if auto light system is activated), BCM receives input signal
requesting illumination lamps to illuminate. This input signal is communicated to IPDM E/R through the CAN
communication. The CPU located in the IPDM E/R controls tail lamp relay coil, which, when energized, directs
power
 through IPDM E/R terminal 22
 to glove box lamp terminal 1
 to A/T device (illumination) terminal 11
 to snow mode switch (illumination) terminal 5
 to VDC off switch (illumination) terminal 3
 to clock (illumination) terminal 3
 to hazard switch (illumination) terminal 3
 to heated seat switch (driver side) (illumination) terminal 5
 to heated seat switch (passenger side) (illumination) terminal 5
 to door mirror remote control switch (illumination) terminal 16
 to LDW switch (illumination) terminal 5
 to combination switch (spiral cable) terminal 26
 to microphone terminal 2 (with telephone system)
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