2004 INFINITI FX35 bcm
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LT-84
FRONT FOG LAMP
Revision: 2004 November 2004 FX35/FX45
Front Fog Lamps Do Not Illuminate (Both Sides)AKS007I9
1. CHECK COMBINATION SWITCH INPUT SIGNAL
With CONSULT-II
Select “BCM” on CONSULT-II. With “HEAD LAMP” data monitor,
make sure “FR FOG SW” turns ON-OFF linked with operation of
lighting switch.
Without CONSULT-II
Refer to LT- 11 3 , "
Combination Switch Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Check lighting switch. Refer to LT- 11 3 , "
Combination
Switch Inspection" .
2. FOG LAMP ACTIVE TEST
With CONSULT-II
1. Select “IPDM E/R” on CONSULT-II. and select “ACTIVE TEST”
on “SELECT DIAG MODE” screen.
2. Select “LAMPS” on “SELECT TEST ITEM” screen.
3. Touch “FOG” screen.
4. Make sure fog lamp operates.
Without CONSULT-II
1. Start auto active test. Refer to PG-24, "
Auto Active Test" .
2. Make sure fog lamp operates.
OK or NG
OK >> GO TO 3.
NG >> GO TO 4.
3. CHECK IPDM E/R
1. Select “IPDM E/R” on CONSULT-II. and select “DATA MONI-
TOR” on “SELECT DIAG MODE” screen.
2. Make sure “FR FOG REQ” turns ON when lighting switch is in
FOG position.
OK or NG
OK >> Replace IPDM E/R.
NG >> Replace BCM. Refer to BCS-15, "
Removal and Installa-
tion of BCM" . When lighting switch is FOG
position: FR FOG SW ON
SKIA5897E
Fog lamp should operate.
Fog lamp should operate.
SKIA5774E
When lighting switch is FOG
position: FR FOG REQ ON
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Component Parts and Harness Connector LocationAKS007O6
System DescriptionAKS007CW
OUTLINE
Power is supplied at all times
through 50A fusible link (letter M, located in fuse and fusible link block)
to BCM (body control module) terminal 55
through 15A fuse [No. 22, located in fuse block (J/B)]
to BCM (body control module) 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.
TURN SIGNAL OPERATION
When the ignition switch is in the ON or START position, power is supplied
through 15A fuse [No. 1, located in fuse block (J/B)]
to BCM (body control module) terminal 38
through 10A fuse [No. 14, located in fuse block (J/B)]
to combination meter terminal 7.
When the ignition switch is in the ACC or ON position, power is supplied
through 10A fuse [No. 6, located in fuse block (J/B)]
to BCM (body control module) terminal 11.
Ground is supplied
to BCM (body control module) terminals 49 and 52
through grounds M35, M45 and M85
PKIA6523E
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to rear combination lamp control unit terminal 7
through grounds E21, E50 and E51
to combination meter terminals 5, 6 and 15
through grounds M35, M45 and M85.
LH Turn
When the turn signal switch is moved to the left position, BCM output turn signal from BCM terminal 45, inter-
preting it as turn signal is ON.
Connected from BCM terminal 45 to front combination lamp LH terminal 4.
Turn signal lamp turns on
through front combination lamp LH terminal 8
to grounds E21, E50 and E51.
Connected form BCM terminal 45 to rear combination lamp control unit terminal 4.
Rear turn signal (LED) turns on
through rear combination lamp control unit terminal 11
to rear combination lamp LH terminal 3
through rear combination lamp LH terminal 4
to rear combination lamp control unit terminal 10.
BCM sends signal to unified meter and A/C amp. through CAN communication lines, and turns on turn signal
indicator lamp with combination meter.
When rear turn signal lamp (LED) does not turn on, Rear combination lamp control unit sends signal to unified
meter and A/C amp. Unified meter and A/C amp. turn LED burnout status signal to BCM through CAN commu-
nication lines for speeding up turn signal blinking.
RH Turn
When the turn signal switch is moved to the right position, BCM output turn signal from BCM terminal 46, inter-
preting it as turn signal is ON.
Connected from BCM terminal 46 to front combination lamp RH terminal 4.
Turn signal lamp turns on
through front combination lamp RH terminal 8
to grounds E21, E50 and E51.
Connected form BCM terminal 46 to rear combination lamp control unit terminal 5.
Rear turn signal (LED) turns on
through rear combination lamp control unit terminal 9
to rear combination lamp RH terminal 3
through rear combination lamp RH terminal 4
to rear combination lamp control unit terminal 8.
BCM sends signal to unified meter and A/C amp. through CAN communication lines, and turns on turn signal
indicator lamp with combination meter.
When rear turn signal lamp (LED) does not turn on, Rear combination lamp control unit sends signal to unified
meter and A/C amp. Unified meter and A/C amp. turn LED burnout status signal to BCM through CAN commu-
nication lines for speeding up turn signal blinking.
HAZARD LAMP OPERATION
Power is supplied at all times
through 50A fusible link [letter M, located in fuse and fusible link block]
to BCM terminal 55
through 10A fuse [No. 19, located in fuse block (J/B)]
to combination meter terminal 8
through 10A fuse [No. 20, located in fuse block (J/B)]
to rear combination lamp control unit terminal 1.
Ground is supplied
through BCM terminals 49 and 52
to grounds M35, M45 and M85
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through rear combination lamp control unit terminal 7
to grounds E21, E50 and E51
through combination meter terminals 5, 6 and 15
to grounds M35, M45 and M85.
When the hazard switch is depressed, ground is supplied
through BCM terminal 29
to hazard switch terminal 2
through hazard switch terminal 1
to grounds M35, M45 and M85.
When the hazard switch is depressed, BCM output turn signal from BCM terminals 45 and 46, interpreting it as
turn signal is ON.
Connected from BCM terminal 45 and 46 to front combination lamp terminal 4.
Turn signal lamp turns on
through front combination lamp terminal 8
to grounds E21, E50 and E51.
Connected form BCM terminals 45 and 46 to rear combination lamp control unit terminals 4 and 5.
Rear turn signal (LED) turns on
through rear combination lamp control unit terminal 11
to rear combination lamp LH terminal 3
through rear combination lamp LH terminal 4
to rear combination lamp control unit terminal 10
through rear combination lamp control unit terminal 9
to rear combination lamp RH terminal 3
through rear combination lamp RH terminal 4
to rear combination lamp control unit terminal 8.
BCM sends signal to unified meter and A/C amp. through CAN communication lines, and turns on turn signal
indicator lamp with combination meter.
When rear turn signal lamp (LED) does not turn on, rear combination lamp control unit sends signal to unified
meter and A/C amp. Unified meter and A/C amp. turn LED burnout status signal to BCM through CAN commu-
nication lines for speeding up turn signal blinking.
REMOTE CONTROL ENTRY SYSTEM OPERATION
Power is supplied at all times
through 50A fusible link [letter M, located in fuse and fusible link block]
to BCM terminal 55
through 10A fuse [No. 19, located in fuse block (J/B)]
to combination meter terminal 8
through 10A fuse [No. 20, located in fuse block (J/B)]
to rear combination lamp control unit terminal 1.
Ground is supplied
to BCM terminals 49 and 52
through grounds M35, M45 and M85
to rear combination lamp control unit terminal 7
through grounds E21, E50 and E51
to combination meter terminals 5, 6 and 15
through grounds M35, M45 and M85.
When the remote control entry system is triggered by input from the keyfob, BCM output turn signal from BCM
terminals 45 and 46, interpreting it as turn signal is ON.
Connected from BCM terminals 45 and 46 to front combination lamp terminal 4,
turn signal lamp turns on
through front combination lamp terminal 8
to grounds E21, E50 and E51.
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Connected form BCM terminals 45 and 46 to rear combination lamp control unit terminals 4 and 5,
rear turn signal (LED) turns on
through rear combination lamp control unit terminal 11
to rear combination lamp LH terminal 3
through rear combination lamp LH terminal 4
to rear combination lamp control unit terminal 10
through rear combination lamp control unit terminal 9
to rear combination lamp RH terminal 3
through rear combination lamp RH terminal 4
to rear combination lamp control unit terminal 8.
BCM sends signal to unified meter and A/C amp. through CAN communication lines, and turns on turn signal
indicator lamp with combination meter.
With power and input supplied, the BCM controls the flashing of the hazard warning lamps when keyfob is
used to activate the remote control entry system.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
CAN Communication System DescriptionAKS007CX
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 speed 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 CAN 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 UnitAKS0080W
Refer to LAN-6, "CAN Communication Unit" .
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Terminals and Reference Values for BCMAKS007IB
Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
2 GY Combination switch input 5 ONLighting, turn, wiper OFF
Wiper dial position 4
3 L/B Combination switch input 4 ONLighting, turn, wiper OFF
Wiper dial position 4
4 PU/W Combination switch input 3 ONLighting, turn, wiper OFF
Wiper dial position 4
5 Y/R Combination switch input 2
ONLighting, turn, wiper OFF
Wiper dial position 4
6 SB Combination switch input 1
11 LG/R Ignition switch (ACC) ACC — Battery voltage
29 G/Y Hazard switch signal OFF Hazard switchON Approx. 0V
OFF Battery voltage
32 GY/R Combination switch output 5 ONLighting, turn, wiper OFF
Wiper dial position 4
33 G Combination switch output 4 ONLighting, turn, wiper OFF
Wiper dial position 4
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SKIA5291E
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Preliminary CheckAKS007D3
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES
Check fuses for blown-out.
Refer to LT-94, "Wiring Diagram — TURN —" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
3, "POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check voltage between BCM harness connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness for open or short between BCM and
fuse.
3. CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
OK or NG
OK >> INSPECTION END
NG >> Check ground circuit harness.
Unit Power source Fuse and fusible link No.
BCMBatteryM
22
Ignition switch ON or START position 1
Ignition switch ACC or ON position 6
Rear combination lamp control unit Battery 20
Terminals Ignition switch position
(+)
(-) OFF ACC ON
ConnectorTerminal
(Wire color)
M311 (LG/R)
Ground0VBattery
voltageBattery
voltage
38 (W/L) 0V 0VBattery
voltage
M442 (L/R)Battery
voltageBattery
voltageBattery
voltage
55 (G)Battery
voltageBattery
voltageBattery
voltage
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Terminals
Continuity
Connector Terminal (Wire color)
M449 (B)
Ground Yes
52 (B)
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Revision: 2004 November 2004 FX35/FX45
CONSULT-II FunctionsAKS007D4
CONSULT-II has a display function for work support, self-diagnosis, data monitor, and active test for each part
by combining data receiving and sending via the communication line from BCM.
CONSULT-II BASIC OPERATION
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
1. With the ignition switch OFF, connect CONSULT-II and CON-
SULT-II CONVERTER to the data link connector, then turn igni-
tion switch ON.
2. Touch “START (NISSAN BASED VHCL)”.
3. Touch “BCM” on “SELECT SYSTEM” screen.
If “BCM” is not indicated, refer to GI-40, "
CONSULT-II Data Link
Connector (DLC) Circuit" .
BCM diagnosis part Check item, diagnosis mode Description
FLASHERData monitor Displays BCM input data in real time.
Active test Operation of electrical loads can be checked by sending driving signal to them.
PBIB1503E
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